PylePro PDWM8400 8 Mic Professional Handheld VHF Wireless Microphone System.

Professional VHF 8 Channel Wireless System
Eight Hand held Microphones Included
Dual Telescoping Receiver Antennas
Eight Volume Controls
On/Off Broadcasting Switch
1/4'' Individual line outputs & Mixed 1/4'' Outputs
Carrier Frequency: 174MHz-216MHz
Dynamic Range: 92dB
Total Harmonic Distortion: 0.5%
Frequency Response: 50Hz~16KHz
Operation Range: 50-180 Meters
Signal to Noise Ratio: 90dB
Receiver Power Supply: AC 110/240V
Microphone Power Source: 9 Volt
Receiver Dimensions Without Rack Mount: 1.8'' x 16.5'' x 8.7''
Receiver Dimensions With Rack Mount 1.8''x 18.9'' x 8.7''