*Performance-grade dual-channel wireless microphone, UHF floating frequency 800HMz, 32/64/99 channel free choice, infrared pairing frequency, true diversity dual antenna receiving distance 150 meters, metal microphone, using AA battery, standard 1U structure, imported microphone core, high-definition True sound quality output interface XLR balanced output/6.35mm mixed output True diversity receiving Microcomputer CPU control Working frequency: 800MHz 32/64/99 channels can be freely selected, LCD digital display Available bandwidth: 40MHZ (20KHz per channel) Modulation method: FM frequency modulation frequency Stability: PLL phase-locked loop frequency synthesis technology within ±0.005, infrared frequency frequency stability: ±0.002% FM modulation frequency Intelligent battery under-voltage warning Use Battery: 2 AA Batteries