Bluetooth Headset, Stereo Wireless Headphones with Microphone for Sport, Running (Blue) Powerful Bluetooth 4.0+EDR technology: easy and fast pairing with Apple or Android smartphones, tablets and other Bluetooth enabled music devices; provides pure, CD-like high quality stereo sound for compatible devices. Two powerful audio drivers on each side offering balanced audio and crystal clear sounds, providing a comfortable and dynamic listening experience. Up to 5 hours talking time; Up to 120 hours standby time with single charge; Universally compatible with most Bluetooth-enabled phones. Strong Wireless Signal: you can enjoy skip-free music in a 10-meter working distance, even if use your music devices left/right side, above/below waist. Exercise-proof & Sweatproof design guarantee Stable and Comfortable when exercising, running, climbing, driving, skating,camping, fishing and other outdoor sports. Small,medium and big size earhooks included. Comfortable design fits perfectly to your ear; the cable smartly stays out of your way when running, jogging or exercising. -----BlueFit Authorized Dealer, Fast Shipping and 30 Days Money Back or Free Exchange Quality Guarantee.