Bluetooth Headphones QY7 COULAX V4.1 Wireless Sport Headphones Stereo Sweatproof In-Ear Noise Cancelling Headphones with Mic/APT-X for iPhone 6 6 plus 5S 4S Galaxy S6 S5 and Android Phones Noise Cancellation: CSR Bluetooth V4.1.Built-in HD microphone, adopt the most advanced Bluetooth CVC6.1 noise cancellation, support "Apt-x" high quality voice, can accurately distinguish the difference between voice communication and noise, makes you still enjoy a clear sound when you are in the noisy occasion Specification 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 ,earpiece design, portable and lightweight wireless headset can be stay in your ears comfortably, our headphones will let you enjoy music through a variety of activities. 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 Universally compatible with most Bluetooth-enabled phones, and built-in extra-long battery allows Up to 6 hours of Talk/Playing Time and 150 hours Standby Time