Portable USB/SD play music box with recharageable built-in battery

1. Play mode: USB/SD/MMC/MS card in WMA / MP3 format    2. Bit rate: 32Kbps-320Kbps    3. Input sensitivity: 600mV ( 3.5plug mode )    4. Output power: 1.1W( 6ohm )X2    5. Power consumption: <5W    6. Frequency response: 50Hz-20KHZ    7. Signal/Noise: USB50dB; AUX70dB    8. Total Harmonic Distortion(THD): R/L < 0.07% (when 0.2W output )    9. Stereo Channels Crosstalk: R/L>60dB    

10.Stereo Channels Balance: R/L±0.5dB  11.ntegrate full range stereo speakers: 3",       10Watt/pcs ( antimagnetic ), DC impedance: 6 ohm.

Portable music box,audio player