Life n Soul IE350-BR Bluetooth Sport Earphones Black & Red Breakthrough technology allows for extended playtime for a solid 6 hours, offering a full week of workouts, or a full day of listening. Signal wave technology for skip-free music outdoors. Use your music device left/right side, above/below waist, doesn't matter with Signal wave. In-ear design for greater ambient noise reduction. Eliminates the outside noise and delivers a clean audio experience offering hours of pure enjoyment. Sweat Proof Design Support voice prompt for the headset's status announcement in 5 different language ( English, Spanish, French, German, Chinese)