Portable computer speaker,Laptop multimedia speaker,USB,FM

Feature:

1/ Portable, Mini, with Data Screen
2/ Dynamic internal magnetic
3/ with micro SD Card slot
4/ mobilephone Lithium battery, USB Charge power
5/ Audio Line In with various player devices by 3.5” plug
6/ FM Radio function
7/ USB disk usable
8/ Function Switch: Pause, next/previous,Power on/off,Volume+,Volume-, Audio-output, Audio-input, USB power

Specification:

1/ output power:3W x2
2/ Frequency response:200HZ-12KHZ
3/ Speaker: 40mm,4 Ohms
4/ Li-ion Input: 3.7V 800mAh
5/Continue Playing time: 4--5Hours
6/ Humidity Test: 90-95% RH 24H
7/ Heat test: -25--+75?
8/ RF:220Hz±20%
9/ S/N Ratio: 75dB±3dB
10/ DCR(Direct Currency Rated Impedance): 3.2O± 5%
Portable computer speaker,Laptop multimedia speaker,USB,FM