material:aluminium iron
size:7.5*4.5*5cm.weight:193g.
color:black,blue,pink.green,sliver.golden.customer''s color isaccepted.logo is available on the cover surface.

1.five bottons in arrays for choosing the model(TF/USB/Linein),the sound for lower or louder,next program,back programrespectively

2.Support TF/Micro sd memory card/flash driver.SupportPC/MP3/MP4 and etc.if you connect them to LINE-IN slot.
3.Power supply:DC 5V/Li-ion battery(BL-5C.3.7V 500mAh)

4.Display function.(optional)
5.Stereo sound. Ultra-low sound
6.Impedance: 4 ohm
7.Output power:RMS 3W x2

Accessory:audion cable/battery.
Packing:gift box.crystal box.or OEM packing.
Packing detail for reference:
qty:60pcs/ctn.

meas:39*24*32cm.

N.W/G.W:7.5/8.5KGS.

using tips:
pls make sure power is available in advance.
(1)pls turn on the speak.
(2)plug TF memory card or usb flash driver or PC/MP3/MP4 and etc.ifyou connect them to Line-in slot.

(3)choose the mode that is corresponding.
Then enjoying music.