Model D81103 Quantity 1 Piece Color Black Material Plastic + polymer li-ion battery Compatible Models Iphone 3g / 3GS / 4 / 4S / 5 and other cellphone with Bluetooth function FM Frequency 2.402~2.480GHz Operating Range 5m Microphone Yes Power Supply USB 2.0 Input 5V 100mA Output 5V 100mA Battery Type 3.7V 80mAh Other Features Bluetooth 3.0 2.1+EDR and Bluetooth 2.01.2 1.1; Charging time: 2.5 hours; Talking time: 7 hours; Music playing time: 6 hours Packing List 1 x Bluetooth mobispeaker ? 1 x Chinese / English manual ? 1 x USB charging cable (75cm)