Model ZEA-F-6 Quantity 1 Piece Color White Material Plastic Compatible Models Iphone Ipad computer Smartphone Bluetooth phones etc. Function Speaker Input Voltage 5V Output Voltage 5V Output Power 2.3W Impedance 4ohms Sensitivity 30~20K Frequency Response FM:87.5~108MHz SNR (Signal to Noise Ratio) 85dB FM Radio Yes Battery 3.7V / 500mAh Other Features Bluetooth 2.0; 1.4" LCD display screen; Blue backlit; Alarm calendar recorder; Languages: Simplified Chinese English; Supports TF card up to 16GB. Packing List 1 x Speaker 1 x Battery 1 x USB cable (60cm) 1 x 3.5mm audio cable (40cm)