SoundPEATS QY5 Bluetooth 4.1 Wireless Sports Headphones Running Gym Exercise Sweatproof Headsets In-ear Stereo Earbuds Earphones with Microphone(Black) Chip: CSR 8645 V4.1 Breakthrough exclusive technology doubles SoundPEATS QY5 playtime to a solid 5 hours SignalPlus for skip-free music outdoors. Use your music device left/right side, above/below waist, doesn't matter with SignalPlus. PureSound In-ear white noise and listener fatigue reduction. Eliminates the white noise and delivers a clean audio experience offering hours of pure enjoyment. Sweat-proof, durable design, Onscreen Battery Meter, Up to 5 hours of Talk/Playing Time and 145 hours Standby Time. High-fidelity stereo music and clear speech, You can begin enjoying CD quality stereo sound instantly.