1.45 seconds shockproof CD player, AM/FM radio, 12 radio channelscan be
  saved, LCD full screen display.
2.The sound of a single portable amplifier can cover with 500m.
3.The simple set storage battery inside is easy to change and maintenance.
4.Setting storage battery inside, it is easy for using in the open air, Charging time
  of the new storage battery must be more than 12 hours at the first time
5.Handle wireless mike and wireless emitter can use 9v commen battery or 8.4v 
  storage battery.
6.Quartzose concussive circuitry, frequency is steady-going and  strong anti-jamming.
7.Digital reverberation, contral knob can adjust the effect of the sound,the best effects 
  can be achived if adjust reverberation time according to the need time.
8.Pilot lamp of frequency spectrum display the change of frequency.
9 The box is made of all wool and a yard wide material, with the particular appearance
  and wear well.
10 Portable amplifier is more suitable for moving inside or outside the door.

Specifications:
Power：                  DC±12Vinsert12V/12AHzstorage battery
Speaker：                8 inch woofer / clarion tweeter
Channel：                wireless microphone
Range of frequency:      VHF215-265MHz
Sensitivity：            10dBuV(S/Nor up to60dB)
Size:                    (L*W*H)44X42X63.5cm
Weight:                  19Kg
Power output:            130W
Max distortion:          ≤2%