Details information:

1.support usb/TF card.

2.for use with:mobile phone/ipodpsp/mp3 mp4.

3. Battery:build-in li-battery,rechargeable.

4.FM radio 

Technology parameters:

1.out put:rms 3w.

2.frequency response:100hz-20khz.

3.s/n radio:>=85db.

4.lond speaker:1.5"x3w/4ohm.

5.input:3.7v. 

Packaging:

Speaker size:. 70x70x65 mm.

Carton size:. 38.5x38.5x32.5 cm.

Weight:. 200g.

Quantity:. 100 pcs/carton. 

N.w:. 20.8kgs.

G.w:. 22.3kgs.

Accessory:

Usb cable,audio cable. direction