portable mini speaker,Multimedia,computer,Laptop,MP3,FM

Feature:
1/ Portable, Mini, metal Shell,
2/ with LED Screen & background Flash light
3/ Dynamic internal magnetic
4/ with micro SD Card slot
5/ Internal Lithium battery, USB Charge power
6/ Audio Line In and Line out with various player devices by 3.5” plug
7/ FM Radio function
8/ USB disk usable
9/ Function Switch: Pause, next/previous,Power on/off,Volume+,Volume-, Audio-output /input, USB power

Specification:
1/ output power:3W
2/ Frequency response:200HZ-12KHZ
3/ Speaker: 40mm,4 Ohms
4/ Li-ion Input: 3.7V 400mAh
5/ Continue Playing time: 1.5--2Hours
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 mini speaker,Multimedia,computer,Laptop,MP3,FM