These SE535 Sound Isolating Earphones feature triple high-definition drivers for spacious sound with rich bass in a secure, low-profile fit and innovative detachable cable system. The discrete, secure design includes a detachable 3.5 mm cable with wireform fit to keep earphones in place and cables out of the way. Sound Isolating technology blocks up to 37dB of outside noise. It also comes with a premium carrying case, 1/4" adapter and fit kit with a wide selection of sleeves for a custom fit.