Brand Bluejoy Model CD-618 Quantity 1 Color Black + white Bluetooth Version Bluetooth v3.0 Ear Coupling Ear Hook Talk Time 6 Hour Standby Time 60 Hour Operating Range 10 meter Compatibility Compatible with Bluetooth v2.0 Microphone Yes Radio N/A Supports Music Format N/A Power Supply Built-in Battery Built-in Battery Capacity Built-in 70mAh lithium battery Compatible With Mobile phones with buletooth Other Features Frequency range: 2.4GHz; Charging time: 3 hours; Interface: 1 x Micro USB port. Packing List 1 x Bluetooth headset 1 x EU plug power charger (100~240V / 40cm) 1 x Chinese / English user manual 1 x Ear hook