1.Composed of components such as a pickup, amplifier, microcontroller, and LED 2.Voice control sensing, no need to connect audio cable 3.Adjustable sensitivity, automatically sensing sound melody 4.It is possible to set parameters such as display refresh speed, audio response sensitivity, sampling frequency, etc 5.Multi color LED lights, suitable for various scenarios with pickup rhythm and jumping Kit Name: HU-052 Voice Control Direct Plug LED Music Spectrum Kit Working power supply: USB powered 5V Working voltage: 5V Instructions for use 1.Insert USB, power on the device and enter working mode 2.Adjust pickup sensitivity through RP1 3.Long press and hold SW1 to switch settings, short press and hold SW1 to select parameters Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Transparent shell Material:plastic Package Contents: 2 x DIY electronic kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.