Brand No Type Portable Colors Black + White Quantity 1 Material Plastic Internal Memory No Memory Card Type TF card / USB flash drive Max Extended Capacity 8GB Media Format MP3 Total Power 3W Signal to Noise Ratio(SNR) 85dB Channels 2 Remote Type N/A Interface 1x3.5MM/1xMINI USB/1x3.5MM AUX/1xUSB2.0/1xTF card Radio FM Radio FM Frequency 87~108MHz Power Supply USB port / battery Built-in Battery 800mAh external battery Other Features 1.6" screen touch sensor LED table lamp long press to adjust the brightness Packing List 1 x LED table lamp 1 x USB cable (64cm) 1 x 3.5mm audio cable (96cm) 1 x Battery