Audio and Video Equipment Manufacturing (U.S.) — NAICS 334310

A Histometrics industry primer for public-market and private investors.

1. Overview

This is the industry that designs and builds the speakers, soundbars, headphones, home-theater receivers, gaming headsets, microphones, public-address (PA) rigs, instrument amplifiers, and — on paper — the televisions that Americans listen to and watch. Formally, NAICS (North American Industry Classification System) code 334310 covers establishments that manufacture electronic audio and video equipment for home entertainment, motor vehicles, and public-address and musical-instrument amplification.[1]

For an investor, the first thing to understand is that the U.S. domestic manufacturing footprint is small and shrinking, while the U.S. brand footprint is large and global. Almost all consumer audio-video (AV) gear sold in America is physically made in Asia — either by foreign giants (Samsung, LG, Sony, Apple) or by U.S.-headquartered brands that design at home and contract-manufacture abroad.[2] So the federal "manufacturing" statistics (about $4–5 billion of domestic output) dramatically understate what this industry actually is in economic terms.[3][4]

Ways in:

• Public markets: a short list of pure-plays — Sonos, GoPro, Turtle Beach, Universal Electronics, Koss — plus Dolby Laboratories, which is really a licensing company riding on the same devices. Diversified giants (Apple, Sony, Samsung) offer exposure but bury it inside far larger businesses.
• Private markets: this is where much of the value sits — Bose, Shure, Fender, and the Samsung-owned Harman empire are all private or subsidiary-held. The action for private investors is in brand roll-ups and consolidation, not greenfield factories.

2. What it is and how it's structured

In scope (334310): home audio (speakers, soundbars, receivers, home-theater systems); headphones and earbuds; microphones and PA systems; instrument amplifiers; car audio; household video cameras and recorders; and, by classification, television sets.[1]

What it excludes — and the adjacent NAICS codes that catch it:

• Broadcast, wireless-infrastructure, and radio-transmitting equipment → NAICS 334220.[1]
• Musical instruments themselves (electric guitars, keyboards, pianos) → NAICS 339992. Note the split: a Fender guitar is 339992, but a Fender amplifier is 334310.[1]
• Telephones and smartphones → NAICS 334210 / 334220. (This matters: Apple's AirPods and smartphone audio are counted elsewhere even though they dominate how people listen.)
• Blank/recorded media and disc reproduction → NAICS 334614.
• Wholesale distribution and electronics retail → NAICS 423 / 443. The people who sell this gear are not counted here.
• Photographic cameras, broadcast and studio equipment, cable and satellite equipment, telecommunications hardware, electronic components, and content or streaming services — all excluded.

Operating model: The business usually begins with brand ownership, industrial and acoustic design, software, intellectual property (IP), and channel access rather than with a vertically integrated U.S. factory. Firms specify drivers, microphones, chipsets, displays, radios, power supplies, enclosures, batteries, and software; procure those components from specialist suppliers; use internal or contract assembly; and ship finished products through distributors, big-box retailers, specialty dealers, installers, e-commerce platforms, or automotive OEM programs.

Sonos illustrates the asset-light model. It outsources manufacturing to contract manufacturers in Vietnam, China, and Malaysia, commits to components against demand forecasts, and moves most finished goods through third-party warehouses and logistics providers. At fiscal year-end 2025 it had approximately $173 million of open finished-goods purchase orders and $131–149 million of expected component commitments — exposing even a brand owner without assembly plants to substantial inventory risk.[5]

Ownership mix: three layers.

1. A few small-cap U.S. public companies.
2. Large foreign-owned or subsidiary brands (Harman/JBL under Samsung; Sony; LG).
3. Substantial private and PE-backed firms (Bose, Shure, Fender). The category is asset-light: most "manufacturers" own the brand, the industrial design, and the IP, and outsource the actual soldering to Asian contract manufacturers.

3. How big it is

The federal figures describe domestic manufacturing establishments only. Two authoritative series measure slightly different things:

The BLS employment series (which includes wage-and-salary workers, unincorporated self-employed, and unpaid family workers) shows the long structural decline: 19,700 jobs in 2025 versus 60,300 in 1987.[7] Sectoral output adjusts shipments for inventories and removes intra-industry transactions, explaining the gap between the Census and BLS figures.

The recent output story is more positive than the employment story. From 2019 through 2024, BLS found that audio and video equipment had the fastest labor-productivity growth of all manufacturing and mining industries examined, at 11.2% per year — real output grew 8.6% per year while hours worked declined 2.4% per year.[9]

The undercount caveat is central here. An HHI of 682.8 is technically "unconcentrated" (below the 1,500 threshold antitrust regulators use), and CR4 of 43.6% looks moderate.[4] But that only describes the handful of domestic factories. The AV market Americans actually experience is far larger and, by brand, far more concentrated — Apple, Samsung, Sony, Bose, and Sennheiser command most consumer spend, and the bulk of that hardware is imported.[2] China alone became the dominant global electronics exporter, with electronics exports passing $1 trillion in 2021; audio accessories such as headphones and speakers remain roughly a fifth China-sourced even after supply chains shifted toward Vietnam.[2][10] So read the ~$4–5 billion / ~11,000–20,000-worker figures as "what's left being built on U.S. soil," not "the size of the U.S. audio-video business."

4. The investable universe

Publicly traded pure-plays and near-plays (share prices and market values move constantly; treat sizes as approximate):

Notes for investors:

• Dolby is the outlier. It is a licensing/IP business — about 93% of revenue is royalties, at ~89% gross margin — not a manufacturer.[11] It's the highest-margin way to get exposure to the proliferation of AV devices without owning any factory risk, but it doesn't belong to this industry's operating model.
• Sonos is the flagship listed pure-play: Santa Barbara-based, it designs domestically and contract-manufactures in Asia. FY2025 revenue fell 4.9% to ~$1.44 billion (unit volume down 7.5%) — speakers were 77% of sales — hurt by soft demand and a botched app relaunch that impaired its entire ecosystem.[5] Gross margin was 43.7%, but operating and net losses persisted ($50.5 million and $61.1 million, respectively).[5] At fiscal year-end 2025 Sonos had nearly 53.4 million registered products in approximately 17.1 million households; 61% of those households owned more than one product, and existing customers generated ~45% of new product registrations — illustrating the installed-base dynamics of connected audio.[5]
• GoPro is the pure-play for consumer video capture. Revenue fell to $651.5 million in 2025 (hardware down 21.5%, camera shipments down 24.9% to 1.8 million units), with a 33.6% gross margin and $93.5 million net loss.[13] Smartphones have displaced much of the traditional camera market, and GoPro explicitly identifies smartphone and tablet cameras as a major substitute.[13]
• Diversified giants — Apple (AirPods, HomePod), Sony (NYSE: SONY), Samsung (which owns Harman) — offer AV exposure but as a sliver of a much larger whole.

Major private / subsidiary owners (where a lot of the real value is):

Foreign-listed alternatives include Samsung Electronics through Harman and its audio brands, Sony through television and audio/video products, and Yamaha through consumer, professional, and mobility audio.[26] These are diversified conglomerates rather than pure plays.

5. How the money works

This is a consumer-discretionary hardware business, so owners make money on the classic manufacturing levers, plus a premium brand overlay:

• Unit economics = volume × average selling price (ASP) − bill of materials (BOM). For high-volume audio, the BOM is often held to roughly 20–25% of retail price, which is one reason production is hard to move out of China without eroding margins.[2] Premium brands (Bose, Sonos, B&W) defend higher ASPs and 40%+ gross margins through design, sound quality, and ecosystem lock-in; commodity gear competes on price and gets squeezed.
• Asset-light margins. Because most "manufacturers" outsource assembly, the money is made on brand premium and IP, not on owning plants. Capacity utilization and factory fixed costs matter more for the pro-audio and instrument-amp firms that still build domestically.
• Cost structure. The principal variable costs are electronic components, acoustic drivers and microphones, displays and optical components where applicable, batteries, plastics and metals, contract-manufacturing charges, tooling, freight, duties and tariffs, warranty replacements, packaging, royalties, fulfillment, and inventory obsolescence.[5] Above gross profit, firms must fund acoustic and electrical engineering, embedded software and apps, cloud services, certification, IP protection, product launches, advertising, retail displays, dealer support, and customer service.
• Operating leverage. A premium brand can earn a healthy product gross margin but still lose money if volume is inadequate to absorb R&D and selling expenses — Sonos's 43.7% gross margin coexisted with a $50.5 million operating loss in FY2025.[5]
• Seasonality and cyclicality. Sales concentrate in the Q4 holiday quarter and rise and fall with consumer confidence, housing turnover, and TV/format upgrade cycles. Sonos historically generates substantially higher revenue in its first fiscal quarter around the holidays; GoPro generated 31% of 2025 revenue in Q4.[5][13] A demand miss late in the year can leave excess channel inventory, non-cancellable components, markdowns, and underabsorbed fixed costs.
• The licensing model (Dolby). A structurally different — and far richer — way to monetize the same trend: collect a royalty on every device that ships with your format. High margin, low capital, but dependent on standards adoption and renewals.[11]
• IP as a weapon. Patents are a genuine profit center and battlefield. Sonos won a jury award against Google over speaker patents and pursued multi-year ITC and appeals-court litigation — for a small hardware maker, IP can be worth as much as the products.[27]

6. What drives demand

• TV and home-theater upgrade cycles. Bigger, thinner 4K/8K TVs have poor built-in speakers, driving strong soundbar and home-theater "attach" sales.
• Format transitions. New standards — surround sound, then Dolby Atmos and spatial audio — pull consumers into new receivers, speakers, and soundbars (and feed Dolby's royalties).[11]
• Gaming. A durable growth lane for headsets and accessories (Turtle Beach's core market).[14]
• The creator/streaming and remote-work boom. Podcasting, streaming, and video calls lifted demand for microphones, headphones, and webcams (Shure, Sonos Ace headphones launched 2024).[5][22]
• Streaming-driven connectivity. In 2025, the U.S. had 106.5 million paid music-subscription accounts, while total streaming revenue reached $9.47 billion and represented 82% of recorded-music revenue.[28] This supports demand for networked speakers and headphones, but also gives streaming and operating-system platforms strategic leverage over hardware brands.
• Housing and remodeling. New-home construction and renovations drive custom-installed (CI) whole-home audio and in-wall/architectural speakers.
• Automotive. In-car audio and infotainment (Harman, Klipsch/VOXX) rides vehicle production and the shift to premium and electric vehicles.
• Premiumization and the smart home. Wi-Fi/voice speakers and higher-end "lifestyle" audio have expanded the category's dollar value even as unit prices for basic gear fall.
• Professional AV. Commercial systems are becoming networked infrastructure rather than isolated speakers and projectors. AVIXA forecasts the broad global professional-AV products-and-services market rising from $332 billion in 2025 to $402 billion in 2030, though that figure includes software, services, integration, displays, and many products outside NAICS 334310.[29]

7. Regulation

Regulation is meaningful but rarely existential:

• FCC equipment authorization. Nearly all of this gear is regulated under 47 CFR Part 15. Devices that emit radio frequencies on purpose (Bluetooth/Wi-Fi speakers, wireless mics, wireless headphones) need FCC certification; devices that emit RF only as a byproduct use the lighter Supplier's Declaration of Conformity (SDoC). Certification testing must be performed by an FCC-recognized accredited laboratory.[30][31]
• Energy efficiency. DOE and Energy Star standards, plus California Energy Commission rules on external power supplies, standby power, and televisions, shape design and cost.
• Materials and e-waste. Restrictions on hazardous substances (RoHS-style rules), state electronics-recycling laws, and California Proposition 65 warnings govern what goes into products and how they're disposed of. EPA emphasizes durability, reuse, reduced material use, and recyclability across the electronics life cycle; e-waste and hazardous-material obligations vary substantially by jurisdiction.[32]
• Safety. CPSC oversight of lithium-battery safety, and FTC rules on warranties and "Made in USA" claims. Portable products also face battery, fire, recall, warranty, and product-liability exposure.
• Trade policy — the big swing factor. Section 301 tariffs on Chinese electronics (historically 7.5–25%) and the 2025 tariff escalation have materially raised landed costs and are actively reshaping sourcing toward Vietnam, India, and Mexico. Because this industry is so import-dependent, tariff policy is arguably its single most important regulatory variable.[10][33] GoPro reported that U.S. tariffs on cameras made in Thailand and Malaysia increased from 10% to 19% in August 2025; Gentex said unrecovered tariffs reduced its 2025 consolidated gross margin by approximately 110 basis points, net of recoveries.[13][24]

8. Competitive dynamics and consolidation

The domestic-factory data looks fragmented, but the brand landscape is consolidating fast, and 2025 was a landmark year:

• Samsung's Harman is the aggressive roll-up. After buying Harman in 2017 for approximately $8.02 billion, Samsung's audio arm bought the former Sound United portfolio (Denon, Marantz, Polk, Bowers & Wilkins, Definitive Technology) for $350 million in 2025 — notably less than the ~$1 billion Masimo had paid in 2022, a cautionary tale about acquiring audio brands.[17][18][19]
• Gentex bought VOXX (Klipsch, Onkyo, Pioneer) for ~$196 million in 2025, folding storied audio brands into an auto-parts company. Premium audio accounted for only about 6% of Gentex's 2025 consolidated sales, so the stock remains primarily an automotive-electronics investment.[24][25]
• Barriers and moats: brand, sound reputation, retail shelf/distribution, patents, and platform ecosystems (voice assistants, multiroom software). Scale in components and global distribution favors the giants.
• Pressure from below: low-cost Chinese brands (Anker, Edifier) and, above all, Apple's AirPods, which redefined the headphone/true-wireless market and pressured every incumbent. Platform owners (Apple, Google, Amazon) can both enable and threaten independent hardware makers — they can subsidize hardware to monetize services or ecosystems, pressuring standalone manufacturers that must earn their economics on the device itself.[5]
• Competitive variables: In connected home audio, Sonos identifies Bose, Samsung/Harman, Sony, Bang & Olufsen, Sennheiser, Apple, Google, and Amazon as competitors. Competitive variables include brand, sound quality, industrial design, price, wireless and multi-room capability, software, content compatibility, product breadth, and dealer support.[5]

The through-line: independent U.S. pure-plays are being absorbed or squeezed, and durable value increasingly sits with diversified global platforms and licensing.

9. Risks

• Import competition and commoditization. Thin hardware margins; constant price pressure from Asian manufacturers.
• Tariff and supply-chain risk. Heavy dependence on China and Vietnam for assembly and components (including rare-earth magnets); tariff swings hit costs directly. Sonos says tariffs on components or finished products may require it to raise prices or absorb the cost.[5][10][33]
• Supply-chain concentration. Many branded firms use a limited number of contract manufacturers and sole-source components with long lead times. Forecast errors can produce shortages during launches or excess, product-specific inventory after demand weakens. Geographic diversification away from China reduces one exposure but shifts production toward countries such as Vietnam, Malaysia, and Thailand that can themselves become tariff targets.[5][13]
• Cyclicality. Discretionary spending, housing, and holiday-quarter concentration make revenue lumpy.
• Technology and platform disruption. Smartphones absorb functions (cameras, portable audio); dependence on Apple/Google/Amazon platforms and voice assistants is a structural risk.[5][13]
• Execution and hit-driven demand. Small brands live and die by product cycles — Sonos's 2024 app failure knocked its revenue and stock, illustrating the fragility.[5]
• Customer concentration. Reliance on a few big retailers (Best Buy, Amazon) and, for licensors, on a few large device makers.
• Other material risks: patent litigation, cybersecurity and privacy in connected devices, loss of access to streaming or voice partners, app outages, counterfeit products, foreign exchange, and rapid standards changes.
• For Dolby specifically: royalty renewal and standard-adoption risk — high margins depend on formats staying essential.[11]

10. How to invest, and the outlook

Public routes. The listed pure-plays are few and mostly small: Sonos (the flagship brand play), GoPro (action cameras), Turtle Beach (gaming), Universal Electronics (connected-home control), and Koss (micro-cap headphones). Dolby is the highest-quality, highest-margin adjacent name but is a licensing business, not a manufacturer. For steadier, diversified exposure, investors typically reach it indirectly through Apple, Sony, or Samsung, where AV is a small part of a much larger machine. Tickers, valuations, and dividends belong to that handful of names; the industry as a whole is not a deep public-market pond.

Private routes. This is where much of the real value and deal flow lives — brand-focused private equity (the Sound United, VOXX, and Fender stories), direct ownership of premium brands (Bose, Shure), and the component/contract-manufacturing supply chain. The 2023 Bose Professional sale to Transom Capital illustrates how mid-market sponsors can acquire carve-outs and seek value through SKU rationalization, procurement, manufacturing consolidation, channel expansion, licensing, and working-capital improvement.[21] Private investors should watch consolidation: mid-size independent brands are prime acquisition targets for strategics like Samsung/Harman.

Private underwriting should separate brand value from manufacturing value. Critical diligence items include: revenue and gross profit by SKU and channel; retailer and OEM concentration; product-age distribution; promotional dependence; warranty and return rates; tooling and non-cancellable component commitments; contract-manufacturer concentration; tariff origin; firmware and cloud-support obligations; patent freedom to operate; dealer quality; and the cost of maintaining compatibility with streaming, mobile, and smart-home platforms.

Near-term drivers to watch (forward-looking):

• Tariffs and reshoring — the dominant variable; further escalation raises costs but could, over time, modestly rebuild domestic and near-shore (Mexico) assembly.[33]
• Format cycles — Dolby Atmos/spatial-audio adoption and continued soundbar attach to large TVs.[11]
• Gaming and creator hardware — durable structural tailwinds.[14]
• Consolidation — expect more brand roll-ups as scale players buy distribution and IP.

Bottom line: A modest, mature, import-exposed U.S. manufacturing base (~$4–5 billion of domestic output, ~11,000–20,000 workers depending on measure) sits beneath a large, global, consolidating brand economy.[3][4][6][7] The best public returns tend to come from IP licensing (Dolby) and well-run niche brands (Sonos, Turtle Beach) rather than from commodity hardware; the best private opportunities come from owning or rolling up premium brands. Federal manufacturing figures materially understate the industry's true consumer footprint because most of the gear — and most of the value — is made offshore or captured by IP and brand rather than by domestic factories.[2][4]

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Sources

1. U.S. Census Bureau / NAICS Association, "NAICS Code 334310 — Audio and Video Equipment Manufacturing" (2022). https://www.naics.com/naics-code-description/?code=334310
2. CEPR, "China's electronics export juggernaut and lessons for the US" (2023); Forbes Tech Council, "Diversifying Your Imports: Manufacturing Consumer Electronics" (2023). https://cepr.org/voxeu/columns/chinas-electronics-export-juggernaut-and-lessons-us
3. Bureau of Labor Statistics, Industry Productivity series — NAICS 334310 sectoral output (2025): $4.393 billion. Via FRED. https://fred.stlouisfed.org/series/IPUEN334310T300000000
4. U.S. Census Bureau, 2022 Economic Census — Concentration of Largest Firms, NAICS 334310 (receipts ~$5.09 B; 506 firms; CR4 43.6%; CR8 53.8%; CR50 83.7%; HHI 682.8) (2022). https://www.census.gov/programs-surveys/economic-census.html
5. Sonos, Inc., Form 10-K, Fiscal Year 2025 — total revenue $1,443.4 M (−4.9%); unit volume −7.5%; gross margin 43.7%; operating loss $50.5 M; net loss $61.1 M; 53.4 M registered products in 17.1 M households (2025). https://www.sec.gov/Archives/edgar/data/1314727/000131472725000090/sono-20250927.htm
6. U.S. Census Bureau, County Business Patterns, NAICS 334310 (539 establishments; 10,977 employees; ~$861 M annual payroll) (2023). https://www.census.gov/programs-surveys/cbp.html
7. Bureau of Labor Statistics, Industry Productivity series — NAICS 334310 employment (2025): 19,700 (includes wage-and-salary workers, unincorporated self-employed, and unpaid family workers; vs. 60,300 in 1987). Via FRED. https://fred.stlouisfed.org/data/IPUEN334310W200000000
8. U.S. Small Business Administration, Table of Small Business Size Standards, NAICS 334310 (750 employees) (2023). https://www.sba.gov/document/support-table-size-standards
9. Bureau of Labor Statistics, "Productivity and Costs by Industry—2024" — audio and video equipment had fastest labor-productivity growth of manufacturing/mining industries examined, at 11.2% per year (2019–2024); real output +8.6%/yr, hours worked −2.4%/yr (2025). https://www.bls.gov/news.release/archives/prin_04242025.pdf
10. Ballast Markets, "Section 301 Tariffs Explained" (2025); Eightx, "Electronics and Accessories Import Tariff Map" (2026). https://content.ballastmarkets.com/blog/2025-11-08-section-301-tariffs-explained-complete-list/
11. Dolby Laboratories, "Fourth Quarter and Fiscal Year 2024 Financial Results" — FY24 revenue $1,273.7 M, licensing 93%, gross margin ~89% (2024). https://www.prnewswire.com/news-releases/dolby-laboratories-reports-fourth-quarter-and-fiscal-year-2024-financial-results-302310222.html
12. CompaniesMarketCap / Macrotrends, market-capitalization data for Sonos (SONO), Dolby (DLB), and Turtle Beach (TBCH) (2025–2026). https://companiesmarketcap.com/sonos/marketcap/
13. GoPro, Inc., Form 10-K, Fiscal Year 2025 — revenue $651.5 M; hardware −21.5%; camera shipments 1.8 M units (−24.9%); gross margin 33.6%; net loss $93.5 M (2025). https://www.sec.gov/Archives/edgar/data/1500435/000150043526000006/gpro-20251231.htm
14. Turtle Beach Corporation, "Third Quarter 2024 Results"; StockAnalysis, Turtle Beach revenue (2024 revenue ~$372.8 M) (2024). https://www.globenewswire.com/news-release/2024/11/07/2977236/0/en/Turtle-Beach-Corporation-Announces-Third-Quarter-2024-Results-and-Raises-Full-Year-Outlook.html
15. Universal Electronics Inc., "Fourth Quarter and Year-End 2024 Financial Results" — 2024 revenue ~$394.9 M (2025). https://investors.uei.com/news-releases/news-release-details/universal-electronics-reports-fourth-quarter-and-year-end-2024
16. ElectroIQ, "Koss Corporation Statistics by Revenue" — 2024 revenue ~$12 M (2025). https://electroiq.com/stats/koss-statistics/
17. Samsung Electronics, Public Disclosure — acquisition of Harman International for approximately $8.02 billion (2017). https://www.samsung.com/global/ir/reports-disclosures/public-disclosure-view.70719/
18. Samsung Global Newsroom, "Samsung Electronics to Acquire HARMAN, Accelerating Growth in Automotive and Connected Technologies" (2016). https://news.samsung.com/global/samsung-electronics-to-acquire-harman-accelerating-growth-in-automotive-and-connected-technologies
19. HARMAN / Ecoustics, "HARMAN Acquires Sound United from Masimo for $350M" — Denon, Marantz, Polk, Bowers & Wilkins, Definitive Technology; closed Sept 23, 2025 (2025). https://www.ecoustics.com/news/harman-masimo-consumer-audio/
20. Wikipedia, "Bose Corporation" — private, Framingham MA, revenue ~$3.2 B (FY2021). https://en.wikipedia.org/wiki/Bose_Corporation
21. Bose Corporation, "Bose Professional Announcement" — sale to Transom Capital Group (2023). https://www.bose.com/pressroom/bose-pro-announcement
22. Wikipedia, "Shure" — private audio-equipment maker, Niles, IL. https://en.wikipedia.org/wiki/Shure
23. PitchBook / Wikipedia, "Fender Musical Instruments" — private, revenue ~$720 M. https://en.wikipedia.org/wiki/Fender_(company)
24. Gentex Corporation, Form 10-K, Fiscal Year 2025 — VOXX acquisition closed April 1, 2025 for ~$196 M; premium-audio segment $151.3 M sales, $103.2 M COGS, $8.3 M operating income (partial-year); unrecovered tariffs reduced consolidated gross margin by ~110 bps (2025). https://www.sec.gov/Archives/edgar/data/355811/000035581126000010/gntx-20251231.htm
25. audioXpress, "Gentex Closes Acquisition of VOXX International Corporation" — ~$196 M, closed April 1, 2025; Klipsch, Onkyo, Pioneer (2025). https://audioxpress.com/news/gentex-closes-acquisition-of-voxx-international-corporation
26. Yamaha Corporation, Annual Report 2025 — audio equipment segment overview (2025). https://www.yamaha.com/en/ir/library/publications/pdf/an-2025e_print.pdf
27. Santa Barbara Independent / Courthouse News, "Google Ordered to Pay $32.5M to Sonos over Speaker Patent Infringement" (2023). https://www.independent.com/2023/06/04/google-ordered-to-pay-32-5m-to-sonos-over-speaker-patent-infringement/
28. Recording Industry Association of America (RIAA), "2025 Year-End Music Industry Revenue Report" — 106.5 M paid music-subscription accounts; streaming revenue $9.47 B (82% of recorded-music revenue) (2025). https://www.riaa.com/riaa-reports-us-recorded-music-annual-revenue-achieves-new-high-of-11-5-billion-in-2025/
29. AVIXA, "2025 IOTA Release" — global professional-AV products-and-services market forecast: $332 B (2025) to $402 B (2030); includes software, services, integration, displays, and products outside NAICS 334310 (2025). https://www.avixa.org/resources/press-releases/avixa-research-forecasts-pro-av-industry-set-to-reach-402-billion-by-2030
30. Federal Communications Commission, "Equipment Authorization – RF Device" (47 CFR Part 15). https://www.fcc.gov/oet/ea/rfdevice
31. Federal Communications Commission, DA-24-415A1 — equipment-authorization proceeding; certification testing must be performed by FCC-recognized accredited laboratory (2024). https://docs.fcc.gov/public/attachments/DA-24-415A1.pdf
32. U.S. Environmental Protection Agency, "Electronics: Basic Information, Research, and Initiatives" — durability, reuse, reduced material use, recyclability across electronics life cycle (2025). https://www.epa.gov/electronics-batteries-management/electronics-basic-information-research-and-initiatives
33. TeamSMT, "Tariffs, Reshoring, and Supply Chain Strategies in the EMS Industry" (2025). https://www.teamsmt.com/blog/2025-tariffs-reshoring-ems-industry