Name: Digital Boombox Model No.: iBOX600 Features: 1. MP3 player function,support SD/MMC card 2. Support USB products, such as U Disk/movable hard disk etc. 3. With Line in jack, compatible with CD/MP3/Computer etc. 4. Can charge up MP3/MP4/Mobile/iPOD etc. 5. LCD synchronous english song text flowing display with backlight 6. Support earphone 7. Power Supply: AC adapter 9V(+/-10%), DC 9V ( AAA battery 6pcs)1000mA 8. Max. Output Power: 2W+2W 9. Speaker Impedance: 8 10.Frequency Response: 60Hz-18KHz 11.S/N Ratio: >80db USB jack Spec. 2.0 12.Harmonic Distortion Ratio: <0.5%