Great sales LED lamp speaker for ipone ipad pc 

Feature: 

* Built-in active amplifier
* USB bus-powered capability, no adapter required
* Conveniently powered via with USB cable
* Easily control volume with VOC on the back
* Durable for long-term use
* Size:73×95×235mm,
* weight: 0.9kg

Specification:

* Power output: 3W*4RMS
* Speaker size: 1.5"*2
* Speaker: 4Ω 3W
* input sensitivity: 400mV
* Distortion: ≤0.2 %( 1W 1KHZ)
* Frequency response: 120Hz-20KHZ
* Separation:≥78dB
* S/N Ratio: ≥80dB
* 3.5mm audio output jack
* Power Voltage: USB/DC 5V
* Accessories:USB cable, audio cable

Other details:

USB & Audio cable : 140cm in total 
conntecting  cable :120cm 
Aluminum logo  

Packaging:

QTY: 20PCS/CTN
Gift box:270×89×242mm
Carton: 557×462×505mm
N.W./CTN: 27KGS
G.W./CTN: 30KGS