Flower part: Use STC15F2K60S2 push-pull output to control the on and off state of each LED to achieve the effect of running water lamp. Base Bluetooth part: The voltage regulator chip ASM1117-3.3V provides a stable voltage for the Bluetooth module to prevent the running of the running water lamp from affecting the operation of the Bluetooth module. The Bluetooth module receives the Bluetooth audio signal, and the amplifier circuit composed of the HT6872 chip amplifies and outputs the audio signal received by Bluetooth. The three 10-port microcontrollers are connected to the Bluetooth button part to control the high and low levels and the duration of the level of the microcontroller IO port, so that the microcontroller can also control the audio. One 10-port microcontroller is connected to the Bluetooth output part for ADC acquisition to achieve the rhythmic effect of the running water lamp. Different batches, random styles,No specification accepted and shipped in pieces Color: Yellow Material: ABS+Acrylic Package Contents: 1 set of LED Sunflower Bluetooth Sound 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.