Awei A887BL Wireless Bluetooth Earphone Earbuds w/ Mic Stereo Neckband Waterproof Sport Headset COD IPX4 waterproof, enjoy music anytime you want, even if you do sweat sports Intelligent CVC 6.0 noise reduction to deliver high-quality music The duration of music playback is approximately 5 hours, the talking time is about 8 hours, greatly improved the time of use Connect two phones simultaneously Application for computer, mobile phone, Android smartphone, tablets, portable media player, and other standard Bluetooth devices Bluetooth version: CSR4.1 Battery capacity: 100 mAh Sound system: dual track stereo Call time: 8 hours Music Time: 6 hours Charging Time: 1.5 hours Input charging standard: DC 5 V Optimal transmission distance: 10 meters Support: HSP / HFP / A2DP / AVRCP IPX4 waterproof, sweat-proof and splash-proof function CVC intelligent noise reduction Display Phone Battery How To Connect: In off status, long press the button for seconds until the LED is blue, then shift to blue & red flashing, you will hear “power on”, it enters pairing status. 1. Active your Bluetooth on your mobile phone. 2. Scan and search for “AWEI—MUSIC” model. 3. Just click it and choose “Pair”, you will hear “connected” & Bluetooth connecting success, the blue LED will flash slowly. 4. When connecting, you can press the “power” key to answer the call, and hang off by press again.