1.MP3/WMA format decoder
2.Volume control
3.Work with all audio sources with a 3.5mm jack
4. li-ion Battery inside
5.Power Led indication and li-on battery charging indication
6.Power Supply: DC 5 Volt(li-lon Battery inside) USB power cord
7. Output Power: 2w+2w
8. Driver Unit: 72mm speaker , 4ohms
9.Frequency Response: 150-18Khz

Product size：83*85*105  mm
Box size：188*110*98mm.
Carton size：550*384*310MM 
Package：40PCS
N.W.： 10    kg
G.W.：9  kg