【Dual 20-band Equalizer】The audio spectrum analyzer has accurate real-time frequency level (dual 20-band), and each frequency point uses 20 lights to display the level signal. Supports arbitrary adjustment. 【Noise Reduction】Audio equalizer effectively reduces unwanted background noise, enhancing clarity and fidelity in audio output. 【Versatile】Fashionable LED spectrum display, long light/marquee function, more beautiful and dynamic. USB/Bluetooth multi-function playback options can better meet your needs. 【Rugged and Portable】Adopts a standard ultra-thin but sturdy chassis. Sealed rotary controls are dust-proof to ensure your equipment stays in top condition. 【Application】This audio spectrum analyzer is an ideal accessory for home theate, KTV venues, music studios, and DJ equipment as it provides both visual and auditory feast.