HONGYU Sport Bluetooth 4.1 Headphones Joway H07 Wireless Earbuds Headsets Built-in Remote and Mic , APTX , CVC 6.0 Noise Cancelling for Running , Outdoor(Black) High-Fidelity Sound: Joway H07 sport bluetooth headset is equipped with Bluetooth 4.0 +CSR8645, with high resolution clear voice. High-fidelity stereo music and clear speech, You can begin enjoying CD quality stereo sound instantly. CVC 6.0 Technology : Noise Cancellation 6.0 reduces outside noises and enables clearer sound from microphone. You can get high quality, hands-free phone Universal device compatibility: Headphones are compatible with most Bluetooth-enabled phones, and reduce external sound. Simple-to-use: control all functions of your music (volume, sound, song selection) and calls from your phone via our simple-to-use user interface on the headphones themselves Excellent Battery Performance: Enjoy 6-8 hours of continuous talking or music time and also 200 hours of standby by the use a single charge