Avantalk BTCK-10 Bluetooth Hands Free Car Kit Avantalk BTCK-10 Bluetooth Hands Free Car Kit (Avantronics) General Features: Bluetooth V1.2 + EDR BlueCore 3 CSR Chip Class 2,10 meters (up to 32.81 feet) Support headset and hands free profiles Talk time: Up to 10 hours Standby time: Up to 20 days Charging time: 2-3 hours Bluetooth Speakerphone, can be used as clip-on visor Car kit Echo cancellation noise suppression One-touch answer, call rejection, last number redial