Dimensions: 54*21mm(L*W); Weight: 37g; Up to 7 hours of talk time and 240 hours of standby time. Buzzer for alarm, earpiece holder, chic and innovation in fusion. Bluetooth V1.2 compliant. Bluetooth Class 2 for wireless connection up to 10 meters (30 feet). Rechargeable Lithium Polymer Battery, Capacity: 110mAh.