*Support SD/MMC card/USB flash/FM radio
*CLOCK AND ALARM DISPLAY
*MP3/WMA format decoder
*Remote control
*Volume control

SD sard speakers, Mini speaker:

* SD/MMC card support, USB flash support，FM radio
* CLOCK AND ALARM     DISPLAY
* MP3/WMA format decoder
* Remote control
* Volume control
* Work with all audio sources with a 3.5mm jack.
* li-on Battery inside
* Power Led indication and li-on battery charging indication

Specifications:
* Power Supply: DC 5 Volt(li-lon Battery inside) USB power cord
* Output Power: 3w+3w
* Driver Unit: 52mm speaker , 4ohms
* Frequency Response: 150-18Khz