Intcrown QY8 Wireless Bluetooth Headphones with Mic English Voice Prompt version. CSR Bluetooth V4.1.Built-in HD microphone,intelligent noise reduction technology, support "Apt-x" high quality voice,offering perfect music and calling experience. Winding prevention cable,Cavity stgructure design of unparalleled, easy to pair and use with any mobile devices with Bluetooth such as iPhone, Samsung, LG,HTC,Blackberry,Huawei,One plus, etc Up to 6 hours of talk/playing time,and 150 hours standby time. Art design, perfect for enjoying music while doing exercise and enable for hands free calling