Jahoo Over-The-Head Bluetooth Noise-Reduction Trucker Headset w/ Flexible Boom Mic & 12 Hours Long Talking Time For Online Chat/ Customer Service EXCELLENT SOUND QUALITY. Bluetooth Chipset: CSR BC5 V2.1, Crystal clear and high quality voice for both talking party, noise reduction, No echo. OVER-THE-HEAD DESIGN. Flexible headband with Boom Microphone fits comfortably on either ear. LONG TIME OPERATION. Broadcast Range: 10M, Talking Time: 12 hours, Stand-by time: 250 hours. CONVENIENT TO USE. Can be connected with two Bluetooth devices at the same time. WIDE RANGE IN APPLICATION: Compatible with PS3, Xbox, iPhone, and other blutooth devices. For Online chat, Customer service talking.