Knowles Corporation offers capacitors, radio frequency (RF) filtering products, balanced armature speakers, micro-acoustic microphones, and audio solutions in Asia, the United States, Europe, other Americas, and internationally. It operates through three segments: Precision Devices (PD); Medtech & Specialty Audio (MSA); and Consumer MEMS Microphones (CMM). The PD segment designs and delivers film, electrolytic, and mica capacitor products for use in power supplies and medical implants; electromagnetic interference filters; and RF filtering solutions for use in satellite communications and radar systems for defense applications. The MSA segment designs and manufactures balanced armature speakers and microphones for the hearing health, audio, and True Wireless Stereo (TWS) markets. The CMM segment designs and manufactures micro-electro-mechanical systems (MEMS) microphones and audio solutions used in applications that serve the ear, mobile, TWS, Internet of Things, computing, and smartphones markets. The company serves the defense, medtech, electric vehicle, industrial, communications, and consumer electronics markets through original equipment manufacturers, their contract manufacturers, suppliers, sales representatives, and distributors. Knowles Corporation was founded in 1946 and is headquartered in Itasca, Illinois.

Sonos, Inc., together with its subsidiaries, designs, develops, manufactures, and sells audio products and services in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. The company offers wireless, portable, and home theater speakers; and headphones, components, and accessories. It offers its products through physical stores, websites, online retailers, and custom installers. The company was formerly known as Rincon Audio, Inc. and changed its name to Sonos, Inc. in May 2004. Sonos, Inc. was incorporated in 2002 and is headquartered in Santa Barbara, California.

Kohl's Corporation operates as an omnichannel retailer in the United States. It offers branded apparel, footwear, accessories, beauty, and home products through its stores and website. The company provides its products primarily under the brand names of Croft & Barrow, Jumping Beans, SO, Sonoma Goods for Life, and Tek Gear, as well as Food Network, LC Lauren Conrad, Nine West, and Simply Vera Vera Wang. Kohl's Corporation was founded in 1988 and is headquartered in Menomonee Falls, Wisconsin.

Turtle Beach Corporation operates as an audio technology company in North America, Europe, the Middle East, and the Asia Pacific. It develops, commercializes, and markets gaming headset solutions for various platforms, including video game and entertainment consoles, handheld consoles, personal computers, tablets, and mobile devices under the Turtle Beach brand. The company also offers gaming headsets, keyboards, mice, and other accessories for the personal computer peripherals market under the ROCCAT brand. In addition, it provides game controllers, and gaming flight simulation and racing simulation accessories, as well as USB and analog microphones for gamers, streamers, professionals, and students. The company serves retailers and distributors. Turtle Beach Corporation was founded in 1975 and is headquartered in White Plains, New York.

Kopin Corporation, together with its subsidiaries, invents, develops, manufactures, and sells microdisplays, subassemblies, and related components for defense, enterprise, industrial, and consumer products in the United States, the Asia-Pacific, Europe, and internationally. It offers miniature active-matrix liquid crystal displays, liquid crystal on silicon displays/spatial light modulators, organic light emitting diode displays, microLED display technologies, application specific integrated circuits, backlights, and optical lenses; and head-mounted and hand-held VR products. The company's products are used for soldier thermal weapon rifle sights, avionic fixed and rotary wing pilot helmets, armored vehicle targeting systems, and training and simulation headsets; industrial and medical headsets; 3D optical inspection systems; and consumer augmented reality and virtual reality wearable headsets systems. Kopin Corporation was incorporated in 1984 and is headquartered in Westborough, Massachusetts.

Kewaunee Scientific Corporation designs, manufactures, and installs laboratory, healthcare, and technical furniture and infrastructure products. The company operates through two segments: Domestic and International. Its products include steel and wood casework, fume hoods, adaptable modular systems, moveable workstations, stand-alone benches, biological safety cabinets, and epoxy resin work surfaces and sinks. The company's laboratory products are used in chemistry, physics, biology, and other general science laboratories in the pharmaceutical, biotechnology, industrial, chemical, commercial, educational, government, and health care markets; and technical products are used in facilities manufacturing computers and light electronics and by users of computer and networking furniture. It sells its products primarily through dealers, its subsidiaries, and a national stocking distributor. The company was founded in 1906 and is headquartered in Statesville, North Carolina.

Emerson Radio Corp., together with its subsidiaries, designs, sources, imports, markets, and sells various houseware and consumer electronic products under the Emerson brand in the United States and internationally. It offers houseware products, such as microwave ovens, compact refrigerators, and toaster ovens; audio products, including clock radios, Bluetooth speakers, karaoke machines, and wireless charging products; and other products comprising televisions, massagers, and security products. The company also licenses its trademarks to others for various products. It markets its products primarily through mass merchandisers and online marketplaces. The company was founded in 1912 and is headquartered in Parsippany, New Jersey. Emerson Radio Corp. is a subsidiary of S&T International Distribution Ltd.

The Singing Machine Company, Inc., together with its subsidiaries, engages in the development, marketing, and sale of consumer karaoke audio equipment, accessories, and musical recordings in North America, Australia, the United Kingdom, Europe, and internationally. It offers karaoke products under the Singing Machine brand; licensed karaoke microphone products under the Carpool Karaoke brand; microphone and accessories, and portable Bluetooth microphones under the Party Machine brand; music entertainment singing machines for children under the brand Singing Machine Kids; connected vehicle karaoke devices; and karaoke music subscription services for the iOS and Android platforms, as well as a web-based download store and integrated streaming services for hardware. The company primarily sells its products to retailers, including national chains, warehouse clubs, department stores, lifestyle merchants, specialty stores, and direct mail catalogs and showrooms. The Singing Machine Company, Inc. was incorporated in 1982 and is headquartered in Fort Lauderdale, Florida.