MODEL NO.  GPA-550
  UHF/IR WIRELESS PA SYSTEM
 
 
 
UHF 640- 865 MHz with 96 selectable channels
30 W (RMS) power output
High-fidelity of full-range speaker
Plug-and-play dual receiver modules
Built-in rechargeable Lead-Acid battery with operating time 6 hours
Installed MP3 player modules with USB / SD card reader
Model No. GPS-550, Portable sound system