Function: 1. MP3 player support SD/MMC card 2. Support MP3 and WMA format files 3. Auto power on/off function 4. Speaker function, compatible with CD/MP3/MP4/DVD/Computer 5. FM/AM radio 6. LCD clock with backlight, calendar 7. Can exchange data with other equipment directly specification: 1. Power Supply: AC adapter 9V(± 10%) DC9V( AA battery 5 pcs) 300mA 2. Max. Output Power: 2W+2W 3. Speaker Impedance: 8O+8O 4.Frequency Response: 100Hz-13KHz 5.S/N Ratio: >50db,USB jack Spec. 2.0 6.Harmonic Distortion Ratio: <0.5% Remarks : Accessories: 1.1pcs USB cable. 2.1pcs Adapter(optional) 3.1pcs Audio cable 4.1pcs User Manual