1Once the settings are changed, the data is automatically saved every 5 seconds. When the data is saved, the data will remain off and the data will be saved multiple times because the factory data will be saved for the first time. Power or other settings and operations! If you change the power immediately after the change, the changed data will not be saved. 2Ultra-small stereo level light that adjusts the light bar rise, descent speed and lamp stop time. Each lamp is equipped with an independent current limiting resistor to ensure the same brightness of different color lights. The signal input is isolated by the op amp to avoid single-chip high-frequency interference AUDIO. 3Rich in functions, users can freely adjust the main top of each light bar and actual light speed, which is most suitable for their own display. 4Audio input is isolated by TI signal to minimize monolithic high frequency interference in series audio circuits. 5Different colors of light provide separate current limiting resistors. Guarantee perfect match.