Features:
UHF wireless handheld mic system with 1 dual channels receiver & 2 wireless mics, superior sound quality.
710-790MHz frequency, multilevel high frequency and middle frequency narrowband filter to avoid interference signals.
The receiver with 2 XLR balanced outputs and one 1/4" mix output.
The volume of 2 mics are controlled by 2 knobs independently, with light for indicating.
Effective operating range is up to 30 meters in open area(without block).
Comes with an audio cable(6.35mm plugs) and a power adapter.
Perfect for karaoke, meeting, party, clubs, auditoriums and other occasions need mic.

Specifications:
--Microphone
Transmitter Power: 8.5mW
Modulation Mode: FM
Largest Modulation: ±75KHz
Power Supply: 1 * 9V Battery (Not Included)                  
Size: 23 * 5cm / 9 * 2in
Weight: 232g / 8.2oz(for each)

--Receiver
Sensitivity: 30dBu
Power Supply: DC 12V
Power Adapter: EU Plug
Voltage: 220V
Size: 19.5 * 13.5 * 4cm / 7.7 * 5.3 * 1.6in
Weight: 297g / 10.5oz

--System
Frequency Range: 710 - 790MHz
T.H.D. (Overall): ≤ 1 %                           
S / N Rate: > 80 dB                                  
Dynamic Range: > 80 dB                        
Working Distance: 30 meters if no block        

Package List:
1 * Receiver
2 * Microphones
1 * Audio Cable(6.35mm Plug)
1 * Power Adapter(EU)

Note:
The battery is not included.