Features:
Built Lithium battery
lithium battery :3.7V 500mA
Rated Power : 3W+3W+3W (Bass)
Frequency response: 100HZ---20KHZ
Drive unit: 50mm/4Ω
S/N Ratio: 80db
Audio Input: Mini USB jack
SD/MMC ,U disk card reader speaker
Play Mp3 format music automatically
Materials: Wooden

Body:
size: 18*9.5*8cm
N.W: 840g
Packing: Gift box
Carton:
30pcs/cartons
N.W.:  25.5KGS
G.W.: 26.5KGS
Carton size:49.5*42.5*44cm
20" FCL: 9500pcs
Accessories:
Remote control+3pcs adaptor including+USB cable and audio cable