Portable Card Reader Speaker with Built-in FM Function, Can Stores Up to 20 FM Channels

LCD indicator
Built-in FM function, 20 FM channels can be stored in
Plays mp3 format music from your U-disk/SD/MMC cards automatically
Rechargeable Nokia style Li-ion battery  for 2 to 3 hours of continuous play
Replaceable Nokia style Li-ion battery  to guarantee longer use life
3.5mm audio plug to allow all audio devices to line in
Rated power: RMS 4W x 1 + 2W x 1
Frequency response: 100 to 20kHz
S/N ratio: 85dB