spectrum display ranging: 20Hz-25kHz, ensuring that it can respond to a variety of auditory frequency bands and bring more accurate visual presentation Intelligent sound controlling technology: LED auditory spectrum display adopts advanced sound controls technology, capturing the surrounding music auditory signals in real time and dynamically convert it into lighting effects synchronized with the music This all-green LED spectrum display use highly LED lamp beads, compared with ordinary products with high brightness, lower power consumption, and a longer service life Multiple lighting mode to choose from: This product provides 5 different lighting mode, including statics, flashing, flowing, which can be freely switched according to the user ' s needs LED spectrum display shell is from high-strength, wear-resistant and not easy to change color The device is equipped with a clear LED display with a good viewing