ERZHEN UHF 4-Channel Wireless Microphone System | Cordless Microphone #900

Technical Parameter
Comprehensive characteristics
Carrier frequency range: 610MHz-960MHz (depending on the scope of application of the state)
Modulation: FM FM
Maximum frequency offset: + 45KHz
Frequency response: 50Hz-15KHz
Signal to noise ratio (S/N): >105dB (A)
Distortion: (1KHz): <0.3%
Operating temperature: -10 degrees C ~55
Working distance: 80 meters (ideally)

Receiver
Oscillation mode: PLL (digital frequency synthesizer)
Spurious suppression: greater than or equal to 80dB
Image rejection: more than 80dB
Sensitivity: 5dBuV
Audio output level: balanced output (output jack XLR): 250mV/600
Unbalanced output (1/4 "output" Jack 400mV/3K):
Working voltage: 13.5-16V DC
Working current: less than 800mA

Hand-held Transmitter
RF power output: Max 30mW (depending on the applicable national specification)
Oscillation mode: PLL (digital frequency synthesizer)
Launch frequency stability: < 30ppm
Dynamic range: 100dB (A)
Frequency response: 50Hz-15KHz
Maximum input sound pressure: SPL 130dB
Microphone head: moving coil
Power supply: 2 (1.5V) AA type alkaline battery