W8-11  lncluding:
1PCS  Recelver W-504
4PCS  Handheld  WH-M1
1PCS power adapter and microphone cable

Technical   Data                    
Frequency Range:         UHF 539-599MHz         
Frequency Stability:      ±0.005%           
Dynamic Range:            >90dB                    
S/N Radio:                     >95dB  
Frequency response:    50Hz-15KHz
Power Supply:               DC 12V    
Audio Frequency Output:
                     Balance:    0-±200mV 
                        Mixed:    0-±300mV
Weight:                          ~1.58 kg
Dimentlon:                     480*209*50mm

Transmitter   Data
Handheld Mic                    
Transmitting Power:        10mW         
Modulation Mode:            FM        
Max Adjustment System: 20KHz                    
Power Supply Voltage:    3V
                      (2x AA 1.5V battery)
Working Distance:           30-50M
Working Time:                  4-6 hours
Dimention:                        250*Ø51mm