Brand Music Angel Type Portable Colors Deep pink + silver + black Quantity 1 Internal Memory No Memory Card Type TF Max Extended Capacity 32GB Media Format MP3 Channels 2 Interface Mini USB / TF / 3.5mm jack Radio FM Radio Power Supply Built-in rechargeable battery Total Power 3W Impedance 4 ohm Signal to Noise Ratio(SNR) >=70 ohm Sensitivity 420mV Built-in Battery 400mAh Other Features Supports MP3 format audio file; compatible with TF card or micro SD card. Packing List 1 x Speaker 1 x Charging cable (80cm) 1 x English / Chinese user manual 1 x Strap (21cm)