Buslink Bluetooth Hands Free Car Kit No Installation Required General Features: Caller ID / Dial Key Pad / Call Transfer / Speaker volume and gain control / Support voice dialing / Incoming call voice / Echo Free Sound / Low Battery Indication / Mounts on car sun visor Technical Information: Standard: Bluetooth V1.2 Specification / Range: 33 ft (Free Space) / Connection: Point to Point / Talk Time: 4 Hours Standby Time: 100 hours / Memory: 30 Calls / Battery: Rechargeable Li-Ion Polymer Regulatory Approvals: FCC / CE