Bluetooth mono headset 1)Bluetooth Headset V2.1 EDR, 10m Multi-Link for two mobile phone 2)Dimensions: 33.7X15.6X10.7mm Product name : Bluetooth mono headsetBluetooth Headset V2.1 EDR, 10mMulti-Link for two mobile phoneDimensions: 33.7X15.6X10.7mmstandard color : BLACKWeight:6.4g/ 1 buttoms Talking time: Up to 6 hrsAccessories: Retail box, user manual, USB Cable earhook