Bluetooth Headphones, OU-BAND Wireless Stereo Bluetooth 4.1 Headsets in-Ear Earbuds for Running Gym Biking with APT-X/Mic for iPhone and Android (Black/Blue) QY7 Upgrade Version: Latest QY9 Bluetooth 4.1and CSR 8645 Chipset strengthen the signal 2 times, easy and fast pairing with phones, ipad.With APT-X audio decode technology,Powerful audio driver offers balanced audio and crystal clear sounds Comfortable and stable design for all levels of exercise make easy accessible on-ear controls when you keep moving and eliminates troublesome wires tangling while you control your music or calls 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. Hi-Fi Stereo Surrounding Music, Designed for Music Lovers when Sporting, Running, Gym, Waking and Shopping. Built-in Microphone for Hands-Free Calling, with Intelligent Noise-Reduction Technology CVC 6.0; Voice Control function, Say "Yes" to Answer Call or "No" to Reject.