Professional 4 Channel 4 Cordless Handheld Mic UHF Wireless Microphone System Karaoke AU

Features: Metal UHF wireless microphone system LED display/signal stability Karaoke Microphone 4 Channel Receiver with 4 handheld Microphones also 4 channels can work without interference at the same time Using quartz oscillation circuit, high frequency stability The audio compression - extension technology, greatly reduce noise, dynamic range Receiver using multilevel high frequency amplifier has a very high degree of sensitivity Noise level locking double mute control, noninterference more machine used at the same time Has a balance and imbalance way audio output Wide frequency response range, low distortion Specifications: Product Name: UHF wireless microphone system Material: metal Size: 42cm x 21cm x 4.5cm/16.5 x 8.3 x 1.8inch(for UHF diversity receiver) 25.5cm x 5cm/10 x 2inch(for single microphone) Comprehensive Paremeters RF carrier frequency range: 500-800 MHz(the depends on the technical specifications of the system) Use Distance: 50-150 meters in an open area RF stability: +/-0.005%(-10C-50C) Offset: +/-40KHz with companding and automatic volum limit circuit S/N RATIO: >100db Distortion: 80dB lmage interference ratio:> 70dB Handheld Microphone Handheld RF stability: 0.005%(-10C-50C) RF output power: 19mW Oscillation mode: quartz control Harmonic radiation: