SMS Audio
SMS Audio was an American consumer-audio brand founded by Curtis Jackson, known primarily for headphones and related personal audio products.
Last updated August 24, 2026
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Overview
SMS Audio was an American consumer electronics company and audio brand established in 2011 by rapper and entrepreneur Curtis Jackson, better known as 50 Cent. The name SMS referred to “Studio Mastered Sound,” reflecting the company’s intended association with studio-quality music reproduction. Its principal business was the design, marketing, and sale of headphones, earbuds, wireless audio products, portable speakers, and selected accessories. The company was created after Jackson acquired KonoAudio in August 2011 for an undisclosed amount. KonoAudio had been founded in 2007 by Brian Nohe, who subsequently became president of SMS Audio. Jackson and Nohe worked on the brand’s initial headphones during late 2011 and early 2012, combining celebrity-driven positioning with product development experience from the acquired audio business. The strategy placed SMS Audio in the crowded lifestyle-headphone market, where brands competed through design, artist associations, sports partnerships, licensing, wireless technology, and retail visibility as well as through sound quality. SMS Audio introduced its first major product family, STREET by 50, in October 2012. The range included in-ear, on-ear, and over-ear headphones. The company also developed SYNC by 50 wireless products, which used Kleer Wireless Technology and were promoted as providing lossless, CD-quality audio rather than relying on conventional Bluetooth transmission. The line was positioned around wireless convenience and connectivity, including the ability to connect with multiple devices within a stated range. The brand expanded its commercial and partnership activity during 2012–2014. DJ Pauly D announced a partnership with SMS Audio and Jackson in early 2012 to develop headphones. Music producer Timbaland became an investor in 2013, followed later that year by basketball player Carmelo Anthony. Anthony’s involvement led to the Audio Sport line, while SMS Audio also entered licensed-product work with Lucasfilm for Star Wars-themed headphones. Other product extensions included active-noise-cancelling headphones, a portable SYNC by 50 speaker, and BioSport wired earbuds developed with Intel. BioSport was presented as a fitness-oriented product incorporating biometric sensors capable of collecting data such as heart rate without a conventional rechargeable battery. SMS Audio also used sponsorships and cause-related marketing to build visibility. In 2011, Jackson announced that a portion of each headphone sold through the company’s domestic website would be donated to Feeding America. The brand later sponsored Israeli basketball club Maccabi Tel Aviv and became a sponsor of Swan Racing in NASCAR in 2014, with its branding appearing on racing cars and selected team apparel. The company’s public web presence was taken down and its operations were reported as suspended in 2016. Later references indicated that SMS Audio products could still be purchased through the G-Unit Brands website as of 2022, although the available material does not establish whether SMS Audio continued operating as an independent company. Its history illustrates the early-2010s convergence of celebrity entrepreneurship, consumer electronics, sports marketing, entertainment licensing, and wearable-fitness technology.
History
SMS Audio emerged in 2011 during a period when headphones were becoming both personal electronics and visible lifestyle products. The company was founded by Curtis Jackson, the recording artist and entrepreneur known professionally as 50 Cent. Its name was derived from “Studio Mastered Sound,” a phrase intended to communicate an emphasis on music fidelity and studio-inspired listening. The business was built partly through the acquisition of KonoAudio in August 2011. KonoAudio had been founded in 2007 by Brian Nohe. After the transaction, Nohe became president of SMS Audio, giving the new company continuity in audio-industry management while Jackson supplied a high-profile entertainment identity and marketing platform. Jackson and Nohe designed the first SMS Audio products in late 2011 and early 2012. The company’s first significant consumer range was STREET by 50, introduced in October 2012. It covered in-ear, on-ear, and over-ear formats, allowing the brand to address multiple price and use categories while retaining a consistent visual identity. SMS Audio also developed the SYNC by 50 wireless family. These products were associated with Kleer Wireless Technology, which the company promoted as capable of lossless 16-bit CD-quality transmission. The positioning distinguished SYNC by 50 from ordinary Bluetooth headphones and emphasized wireless listening without sacrificing audio quality. The system was also promoted as supporting connections to as many as four devices within a stated 50-foot range. Partnerships were central to the company’s development. In January 2012, DJ Pauly D announced a collaboration with Jackson and SMS Audio to develop a headphone line. In 2013, Timbaland became an investor, adding another music-industry connection to the brand. Carmelo Anthony invested in December 2013 and later collaborated on the Audio Sport product family, which was released in 2014. SMS Audio also worked with Lucasfilm on Star Wars-themed headphones, using entertainment licensing to broaden its appeal beyond products directly associated with Jackson. Product development continued through several adjacent categories. A STREET by 50 active-noise-cancelling model appeared in late 2013, followed by the SYNC by 50 Portable wireless speaker in November of that year. In August 2014, the company announced BioSport In-Ear earbuds developed with Intel. The product incorporated embedded biometric sensors intended to collect fitness information, including heart rate, without requiring regular charging. This connected SMS Audio’s headphone business with the emerging market for wearable and sensor-enabled fitness devices. Marketing activity extended into charitable, sports, and racing partnerships. In December 2011, Jackson announced that a portion of each headphone sold domestically through SMS Audio’s website would be donated to Feeding America. In 2013, SMS Audio sponsored Israeli basketball club Maccabi Tel Aviv. In February 2014, it became a sponsor of Swan Racing in NASCAR, with the logo displayed on racing vehicles and on jackets worn by some team members. The brand’s visible operations later weakened. In 2016, the SMS Audio website was taken down and operations were described as suspended. The available reference material does not provide a formal dissolution date, bankruptcy filing, sale, or successor-company announcement. As of 2022, products were reported as purchasable through the G-Unit Brands website, but this does not by itself establish that SMS Audio remained an independently operating company. The brand should therefore be treated as having an unclear current status rather than definitively active or defunct.
- 2016
Website disappears and operations are suspended
[1]The SMS Audio website was taken down and the company’s operations were reported as suspended.
- 2014
BioSport earbuds are announced
[1]SMS Audio announced sensor-equipped BioSport earbuds in collaboration with Intel.
- 2013
Timbaland becomes an investor
[1]Music producer Timbaland invested in SMS Audio.
- 2013
Carmelo Anthony becomes an investor
[1]Carmelo Anthony invested in SMS Audio, later collaborating with the company on Audio Sport headphones.
- 2012
STREET by 50 launches
[1]SMS Audio introduced its first major headphone family, covering in-ear, on-ear, and over-ear designs.
- 2011
SMS Audio is founded and acquires KonoAudio
[1]Curtis Jackson founded SMS Audio and acquired KonoAudio in August for an undisclosed amount. Brian Nohe became president of the new company.
- 2011
Feeding America support is announced
[1]Jackson announced that a portion of domestic headphone sales through the SMS Audio website would be donated to Feeding America.
- 2007
KonoAudio is founded
[1]Brian Nohe founded KonoAudio, the audio business later acquired and rebranded as SMS Audio.
Products and positioning
A celebrity-founded lifestyle audio brand combining consumer headphone products with music, sports, entertainment licensing, wireless-audio technology, and fitness-oriented features.
Headphones · 2012
STREET by 50
Introduced in October 2012, STREET by 50 was SMS Audio’s principal initial headphone family. It included in-ear, on-ear, and over-ear formats, giving the brand a broad product platform for lifestyle listening and different wearing preferences. The range connected the SMS Audio name directly with 50 Cent’s public identity while remaining a conventional consumer-audio product line.
Wireless headphones
SYNC by 50
SYNC by 50 was the brand’s wireless headphone family. It used proprietary Kleer Wireless Technology and was marketed around lossless 16-bit CD-quality sound, in contrast with the standard Bluetooth approach described in the company’s materials. The system was also promoted as supporting connections to up to four devices within a stated 50-foot range.
Noise-cancelling headphones · 2013
STREET by 50 ANC
STREET by 50 ANC extended the STREET line with active noise cancellation. Introduced in late 2013, it targeted listeners seeking greater isolation from surrounding noise while retaining the design and lifestyle positioning of the broader STREET by 50 family.
Portable speaker · 2013
SYNC by 50 Portable
SYNC by 50 Portable was a wireless portable speaker introduced in November 2013. It expanded SMS Audio beyond personal headphones into shared and mobile playback, using the SYNC branding to associate the speaker with the company’s wireless-audio technology platform.
Sports headphones · 2014
Audio Sport
Audio Sport was a headphone lineup developed in collaboration with professional basketball player Carmelo Anthony and released in 2014. The range represented SMS Audio’s attempt to connect personal audio with exercise and sports lifestyles through athlete association and activity-oriented positioning.
Licensed headphones · 2014
Star Wars headphones
SMS Audio introduced Star Wars-themed headphones through a partnership with Lucasfilm in 2014. The products used entertainment licensing to give the brand a character and fan-oriented proposition distinct from its artist and athlete collaborations.
Fitness earbuds · 2014
BioSport In-Ear
BioSport In-Ear earbuds were announced in 2014 through a collaboration with Intel. The wired earbuds incorporated embedded biometric sensors intended to gather fitness information, including heart rate, without the need for regular charging. They reflected the early convergence of headphones, wearable sensors, and exercise monitoring.
Marketing campaigns
- 2014Swan Racing NASCAR sponsorship
United States
SMS Audio became a sponsor of Swan Racing, placing its logo on racing cars and on jackets worn by some racers.
Outcome. The partnership expanded the brand’s visibility into NASCAR; no performance or return-on-investment outcome is documented in the supplied material.
- 2013Maccabi Tel Aviv sponsorship
Israel
SMS Audio sponsored Israeli basketball club Maccabi Tel Aviv as part of its sports-marketing activity.
Outcome. The available material confirms the sponsorship but does not describe its commercial results or duration.
- 2011Feeding America sales contribution
United States
SMS Audio announced that part of the proceeds from each headphone sold through its domestic website would support Feeding America.
Outcome. The announcement linked the new brand to a hunger-relief initiative; the available material does not quantify the proceeds or document the program’s final results.
Brand decisions
2016
Suspend visible operationsStrategyBackground
The brand’s public operating presence declined after its product and partnership expansion period.
Action taken
The SMS Audio website was taken down and operations were reported as suspended.
Aftermath
Products were later reported as available through the G-Unit Brands website, but the continuing status of SMS Audio as an independent operating company remains unclear.
2014
Enter sensor-enabled fitness audioProduct launchBackground
SMS Audio sought to extend its headphone business into the emerging market for wearable fitness technology.
Action taken
The company announced BioSport In-Ear earbuds with embedded biometric sensors in collaboration with Intel.
Aftermath
The announcement positioned SMS Audio at the intersection of personal audio and fitness monitoring, but the supplied material does not establish the product’s commercial outcome.
2012
Launch the STREET by 50 product platformProduct launchBackground
The new company sought a recognizable flagship product family in the lifestyle-headphone market.
Action taken
SMS Audio introduced in-ear, on-ear, and over-ear headphones under the STREET by 50 name.
Aftermath
The range became the company’s principal early consumer product platform and supported later noise-cancelling variants.
2011
Acquire and rebrand KonoAudioM&ABackground
SMS Audio needed an operating foundation for its entry into consumer headphones, while KonoAudio provided an existing audio business and management experience.
Action taken
Curtis Jackson acquired KonoAudio in August 2011 and used the SMS Audio name for the resulting brand. The transaction value was not disclosed.
Aftermath
KonoAudio founder Brian Nohe became president, and the combined team developed SMS Audio’s first headphone line.
Sources1 sources
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