Fully functional interface, 6-way input corresponding to 6-way output, metal snap-on interface technology, XLR interface ensures stable signal. Professional automatic feedback suppression algorithm, supports 8 howling point memory, plays an anti-howl effect and protects expensive devices such as power amplifiers and speakers more effectively. The digital processing chip runs with high configuration, automatically identifies the audio signal, suppresses feedback noise in all aspects, effectively prevents sounds, improves the working quality of the equipment and emits pleasant sound. The internal circuit uses 5-stage parametric equalization and digital frequency shift anti-howl technology, which can effectively increase the microphone recording distance to prevent howling noise, and the effective anti-howl technology can reach 99%. Metal material, brushed high-gloss panel, beautiful and fashionable texture, suitable for KTV/home entertainment/performance conferences, etc.