Brand iFound Model F03 Quantity 1 Color Black Bluetooth Version Bluetooth v3.0 Ear Coupling Earbud Talk Time 4 Hour Standby Time 100 Hour Operating Range 10 meter Compatibility Compatible with Bluetooth v2.0 / v2.1 / v3.0 Microphone Yes Supports Music Format MP3 Power Supply Built-in Battery Built-in Battery Capacity 65mAh Compatible With Cell phone tablet PC laptop with Bluetooth function Other Features Anti-radiation and stereo sound performance. Packing List 1 x Bluetooth headset 1 x Earphone (46cm) 1 x USB cable (80cm) 1 x Ear hook 1 x Chinese user manual