RAYHAYES Rechargeable Wireless Microphone Bluetooth UHF Channels Professional Karaoke Microphone for Performance

◆The package has a built-in rechargeable battery, which can be fully charged in 3-4 hours and can be used continuously for 8-15 hours.◆Using UHF fixed high frequency circuit design to easily avoid frequency interference. Cardioid pickup pattern to avoid being affected by ambient noise.◆ Adopt DPLL digital phase-locked loop multi-channel frequency synthesis technology and noise automatic control technology (with pilot);◆ Use UHF664MHz ~ 694MHz frequency band to avoid interference frequency;◆ New energy-saving mode setting, automatic EQ control function, automatic tone correction automatic switching mode automatic infrared frequency system, automatic scanning;◆ Dual microphone design, two people can sing at the same time handheld microphone invisible antenna,◆ True diversity receiving circuit, to ensure continuous rapid within the effective distance, eliminate dead corners; The use of high-gain antenna, effectively open the use of distance up to 200 meters complete input and output interface, easy to connect a variety of devices;◆ High frequency acoustic surface filter is used to filter out interference signals outside the band;◆ High frequency circuit design with double frequency conversion, with high sensitivity;◆ Speech compression and expansion circuit, greatly improve the signal-to-noise ratio, unique voice pressure limiter design, singers singing hard will not appear crack;◆ Any microphone in the system and any receiver can be on the frequency, to solve the fixed frequency microphone is not universal shortcomings, suitable for multiple sets of products in the same occasion;◆ High fidelity sound, unique interference noise squelch function;◆ Using audio compression and expansion technology, the noise is greatly reduced and the dynamic range is increased;◆ Independent output and hybrid output, mixer and karaoke amplifier can be connected;◆ Suitable for public speaking and karaoke performance.Technical parameters:◆ Operating frequency: 664MHz~694MHz◆ Modulation mode: broadband FM◆ Number of channels: 200◆ Channel interval: 250kHz◆ Frequency stability: ±0.005%◆ Dynamic range: 100dB◆ Maximum offset: ±45kHz◆ Audio frequency response: 20Hz ~ 20kHz (±3dB)◆ Pilot frequency: 32.768kHz◆ Comprehensive signal to noise ratio: > 105dB◆ Comprehensive distortion: ≤0.5%◆ Working distance: 100m (under ideal conditions)◆ Working environment temperature: -10℃ ~ 50℃