Main Features: Special Design, Comfort And Fit For Ears Support Call Waiting / Redial / Mute / Volume Control / Music Pause / Play / Stereo Surround Enjoy Your Hands Free Calls And Music At A Distance Of 10Meter Bluetooth Headset Hands-Free, A2dp, Avrcp -92Dbm Rx Sensitivity And +9Dbm Tx Output Power Capability 24 Bit Audio Codec, -98Db Snr, Dc5v/100Ma-1A Battery Capacity: 60Mah SpecificationGeneral Model: B3300 Type: In-Ear Wearing Type: In-Ear Color: White Product Details Application: Mobile Phone,Sport Compatible With: Mobile Phone Connecting Interface: Mini Usb,Others Connectivity: Wireless Impedance: 32Ohms Music Time: 4 - 6 Hours Standby Time: 200 Hours Talk Time: 4- 6 Hours Working Time: 170 Hours