The Koss KE10C Jams Flexible Earphones are designed for users who need a comfortable and flexible earbud solution with reliable sound quality. Featuring super soft, sculpted earbuds and a flexible fit, they are well suited for use during workouts, commuting, or general on-the-go listening. The earphones provide a frequency response of 40-20k Hz and 32 Ohm impedance, delivering clear sound at a sound pressure level of 100 dB SPL. Equipped with a 4ft cord and a standard 3.5mm input jack, they are compatible with most smartphones and audio devices.