VHM-902 Dual 30 Level LED Music Spectrum Level Stereo Amplifier LED Music Frenquency Indicator Pieces Need to Combined DIY Tool Kits

Features:
The column display shows that according to the rhythm of the music, the higher the pitch, the higher the digital tube light is from the bottom to the tops.
The apex stays back, and on the basis of the first mode, each time the digital tube rushes to the highest point, a light will illuminate and fall quickly after 0.5 seconds.
Music breathing light requires to be used in mono mode, the digital tube light is fully on/off, the higher the pitch, the brighter the light, the lower the light, the darker the light, until it is extinguished.
This is the parts of this product, you need to DIY it by yourself, which can give you a special using experience.
The left and right channel signals are should sourced with the power supply, the voltage input is 5V.
Gain adjustment mode: Press the switch button to set the appropriate gain effect according to your favorite tone to achieve better display effect, when the auto adjustment is turned on, the setting is invalid.