The BH-M10B Headset is a professional grade wireless Bluetooth headset and supports Noise Suppression technology、 which effectively eliminates background sounds in noisy environments and ensure that callers can clearly hear and be heard when talking. And、 the concave shaped ear cushion provides improved sound (Crystal Clear Communication) and fit to better hear your call instead of the noises around you. Wide range of volume adjustments helps people with some hearing loss. You can easily and firmly wear the headset on your head - no more sore ears from over-the-ear style headsets! The headset is powered by high-quality built-in rechargeable Li-ion battery which ensures 20 hours of talk time and up to 350 hours of standby time. It will bring you much convenience and fun.?Features:Compatible with almost all Bluetooth-enabled mobile devices such as、 for iPhone6 6Plus 5S、 for Samsung Galaxy S5 S4 / Note 4 3 2、 for HTC One、 for PS3、 Xbox、 Tablet PC、 Laptop、 etc.Supports multipoint connection function: The Bluetooth headset can be connected with two Bluetooth-enabled devices simultaneously.Easy operation and offers you perfect voice quality (Perfect sound Quality and clear communication effect.).You can easily turn on / turn off the headset、 adjusting the volume of the headset、 answering / ending (hang up) / rejecting incoming calls、 redialing a call and mute on / off.?It supports Voice Dialing. ?Suit for truck drivers、 or anyone who needs the clear voice in the noise environment、 customer-service folks、 etc.?lightweight and comfortable and easy to carry and custody.Use creative ergonomics design、 comfortable to wear.(Note: this headphone is a mono headset、 it can't listen music)Specifications:Model Number: BH-M10BBluetooth version: Bluetooth V2.1; Class 2; compatibility with V2.0 & V1.2.Chipset: CSR BC6 V2.1Support: AVRCP、 Headset、 Hands-free、 Noise-Canceling、 Voice-Dial / MuteBroadcast range: 10m / 32ftTalking time: 20 hoursStand-by time: 350 hoursCharging time: Below 3 hoursConnections: Up to 2 devices simultaneouslyData encryption: 128 bits encryptedColor: BlackHeadphone size: Approx. 14.5 * 5.5 * 15cm / 5.7 * 2.2 * 5.9inHeadphone weight: 72g / 2.5ozPackage size: Approx. 19.5 * 7.5 * 21.8cm / 7.7 * 3.0 * 8.6inPackage weight: 165g / 5.8ozPackage List:1 * Bluetooth Headset1 * USB Cable1 * English User Manual