usb/sd speaker has below advantages:
1.Support FM/USB/SD
2.with LED display-

usb/sd speaker descriptions:

1.Functions:

Support  FM/USB/SD                                             

Support MP3 / WMA format                             

LED Display    

2.Paremeters:

1. Power output: 3W+3W
2.Frequency Response: 80HZ-20KHZ
3.Distortion: <0.3% at 1W
4.S/N:>65Db
5.Separation: >45db
6.Speaker: 2''
 

3.Accessories:

power line
3.5mm-3.5mm stereo connect cable
2.5mm-3.5mm transfer cable
remote

4. Package:

1.Product size(L×W×H):145× 100× 90mm
2.N.W.:0.42kg
3.Gift box size:160X105X105mm
4.Carton size: 630*568*485mm
5.Qty/Carton:60sets
6.Carton G.W:25.2kgs
7.CMB/CTN:0.176m³