Hot Sale Crystal USB,SD Speaker

Output：3.7v
Output power：3w
Input：5.0v
Loudspeaker：52mm 4Ω
Singnal and noise ratio：≥80db
Material：Plastic
Unit Size: φ7.9*8.2cm;

1. Multifunctional decoder chip, play MP3 format music from MP3/MP4/IPOD/Computer/USB/SD card and other device etc.;
2. With FM radio
3. Support USB/Micro SD/TF card up to 16GB;
4. Without LED display screen;
5. Built-in rechargeable battery 300Am;
6. Color: Blue,Red,Yellow,Green,Grey
7. 50pcs/ctn
 
Accessories
1. USB power supply cable;
2. 3.5mm audio connect cable;