RU-U81 products have three core technologies: vocal reduction, sound line adjustment and sound pickup. It is an infrared FM U-segment wireless microphone, which is stylish and beautiful according to the design of the artificial body. The three characteristics ensure high-fidelity sound quality, U-section anti-howling, heart-shaped pointing, and dynamic ring system. With the imported high-quality microphone core, the sound is pure, the real high-frequency design, the signal is stable and the receiving range is up to 50 meters.