Brand Singbox Model SV-908 Type Mini Colors Black + silver Quantity 1 Material ABS Internal Memory N/A Memory Card Type SD card / U disk Max Extended Capacity 16GB Media Format MP3 / WMA Total Power 6W Signal to Noise Ratio(SNR) 80dB Sensitivity 500MV Channels 2 Remote Type Wireless Interface SD slot 3.5mm Mini USB USB 2.0 3.5MM LINE IN Radio FM Radio FM Frequency 88MHz~108MHz; 76MHz~90MHz (Japan) Power Supply Rechargeable Battery Built-in Battery Extenal 1000mAh Other Features LED display screen: Can display songs and lyrics; Alarm clock function support sleep timer function; Digital recorder function one key to record; Aux input and earphone output; IR remote controller: up to 6m remote control distance Packing List 1 x Speaker 1 x Chinese / English manual 1 x Remote controller (1 x CR2025 included) 1 x USB charging cable (1m) 1 x 3.5mm audio cable (98cm) 1 x 100~240V US plug power adapter