2.0 portable LED lamp speaker for tablet pc/desktop/laptop

Feature: 

* Built-in active amplifier
* 2-Channel stereo with 3D sound effect and passive bass boost
* Conveniently powered via  USB cable in length 1.4M 
* Easily control volume with VOC on the back
 

Specification:

*Power output: 3.5W*2RMS
*Input sensivity:600mv
*Speaker size: 2"*2
*Frequency response: 120Hz-20KHZ
*Distortion: ≤0.5 %
*Separation:≥75dB

Other details:

USB & Audio cable : 140cm in total 
conntecting  cable :120cm 
aluminum  LOGO  
inside magnetic trumpet 
with diaphragm 

Packaging:

QTY: 12 PCS/CTN
Gift box: 180×175×135mm
Carton: 695×374×370mm
N.W./CTN: 25.5KGS
G.W./CTN: 27KGS