Specifications:Bluetooth: Version 3.0Supported modes: EDR、 SCO、 eSCO、 Sniff modeBluetooth profiles: Hands Free Profile (v1.5)、 Headset profileOperating range: 33 feet (10 meters)Paired devices: Up to 8; connected to 2 at the same time (MultiUse)Call features: Answer call、 end call、 reject call、 voice dialing、 last number redial、 volume control、 battery status and Bluetooth indicator in display、 2 voice prompts (connected、 low battery)、 MultiUse (some features are device dependent)Talk time: Up to 6 hoursStandby time: Up to 8 days (192 hours)Package Includes:1 * Headset1 * USB charging cable1 * User manual