99-Channel UHF Full Metal Professional Omnidirectional Wireless Lapel Mic with 1 Transmitter &1 Receiver

Model: LWM-338C
Name: wireless microphone
Material: Aluminum Alloy
plastic, PCB; Color: Black
Channel Number: 99 channels
High-pass filter: —0Hz, ~80 Hz
Frequency Range: 521MHz~ -555MHz
Frequency response: 60~17KHz
Signal to noise ratio: -60dB
Sound time delay: <1mS
Headphone output power: 50mW
RF output power: 90mW
Recording sampling rate: 16bit 48K
Powered by: 2x AA batteries