SMS Audio is an American consumer electronics company founded in 2011 by rapper and entrepreneur Curtis "50 Cent" Jackson, headquartered in Delray Beach, Florida. The name stands for "Studio Mastered Sound." The company launched after acquiring KonoAudio, with former KonoAudio president Brian Nohe helping design the inaugural product line. SMS Audio's flagship offerings include the STREET by 50 series of wired over-ear, on-ear, and in-ear headphones, the SYNC by 50 wireless headphones utilizing Kleer Wireless Technology, and the STREET by 50 ANC active noise-cancelling headphones.

The brand expanded through several high-profile collaborations, including the Audio Sport headphone line developed with NBA player Carmelo Anthony, Star Wars-themed headphones produced in partnership with Lucasfilm, and the BioSport In-Ear earbuds co-developed with Intel featuring embedded biometric heart-rate sensors. DJ Pauly D partnered with the brand on a headphone line, and producer Timbaland joined as an investor. SMS Audio also produced the SYNC by 50 portable wireless speaker and a range of branded apparel and accessories.

SMS Audio has 1 product cataloged on Equipboard, including Headphones & In-Ear Monitors. Their gear is featured by 1 artist, with the strongest followings in Electronic. Notable users include DJ Pauly D.