usb fm pcb has below advantages:
Support MP3 / USB / SD
FM function(frequency range:87.5~108MHZ)
with 1.888 Display

FM/USB pcb with 21key remote

1.Product functions:

Play the FM channels 
Display The Song Number
Numerical Key Input Operation for Song Selection.
FM Radio : 87.5  108.0 MHz.
Auto Radio Station Search Operation.
User Friendly Auto Search & Save Station Operation Available.
Numerical Display For Volume.
188.8 LED Module Display.
4/6 Keys On Product
Select Forward
Select Backward
Volume Up
Volume Down
Rotated Volume Control Key could be connected

2. Paramenters:

power supply:5V/1A
separation:45dB
distortion:0.1%
output:550MV
S/N:65dB
frequency response:(90.5  106.5  98.5)
auto-search station:22-28dB

3. Accessories:

remote

4. Package:

Inner box:125pcs/box    
Inner box size:28*21.5*7mm
Inner box / Weight: 1.05(kg)
CTN: 20 boxes,2500pcs / CTN
CTN size:58.5*44.5*36.5mm
CTN / Weight:21KGS