EGRD Atp-X Bluetooth Wireless Stereo Sports Earphones with CVC6.0 Noise Cancellation. Lightweight Sweat-proof In-Ear Bluetooth Headphones with HD Sound Quality for IOS , Most Android Smartphones and Most Bluetooth Device. (White) The Latest QY8 bluetooth upgrade to 4.1. CSR8645 chips combine with Atp-x and CVC6.0 noise cancelling Tech. You will be impression with the CD-like quality audio. More User-friendly design. Sweatproof, lightweight, comfortable. Provide additional line hanging to makes the length of the cord can be adjustable. Also reduce the cord waggle and drive you crazy. More bigger and convenience multi-function button. Signal enhance tech. Wireless range up to 10M line in Barrier-Free environment! More stable connect range than before. Support ios voice control function(Siri ). Can be connected with two smartphones at the same time. Long battery life: Built-in high performance polymer 80mAh battery, near 6 hours talking/playing time, and about 175 hours standby time.