System: Dual-Channel Professional VHF Wireless Handheld Microphone

Carrier Frequency: 160-220mhz

Dynamic Range:>90db

Total Harmonic Distortion:<0.5%

Frequency Response:40Hz-15KHz?3dB

S/N Ratio:>90dB

Image Disturbing Rate:>80dB

Transmitter Power:8.5mW

Audio Output: 0-?400mV

Receive Channel: 2Channel

Receiver Power Supply:DC17V 4W

BATTERY POWER: 3V DC(AA1,5Vx2)

Range: 50ft.(170 m) open field