Product Overview: The flower part uses STC15F2K60S2 push-pull output to control the light and dark state of each LED to achieve the effect of running lights. Chassis Blue-tooth part of the use of voltage regulator chip ASM1117-3.3V for the Blue-tooth module to provide a stable voltage, to avoid the operation of running lights affect the Blue-tooth module work. Blue-tooth module receives Blue-tooth audio signals, HT6872 chip constitutes the amplifier circuit Blue-tooth received audio signals for amplification output. Three IO ports of the microcontroller are connected to the Blue-tooth key part, manipulating the high and low levels of the microcontroller IO ports as well as the level duration, so that the microcontroller can also control the audio, and one IO port is connected to the Blue-tooth output part for ADC acquisition, which is used to realise the rhythmic effect of the running lights. Features: The kit is very suitable for training welding skills, at the same time very suitable for DIY enthusiasts, can greatly improve their hands-on ability The product is shipped in bulk, customers need to assemble by themselves The product with infrared remote control function, through the infrared remote control can control the state of the running lights and bluetooth speakers play state Cool Colorful LED light design, equipped with 110pcs of high brightness Colorful LED lights, used to achieve the effect of flowing lights Products with Blue-tooth function, through the mobile phone connected to Blue-tooth, Blue-tooth audio Parameter: Product Name:LED Sunflower Blue-tooth Audio Kit Operating voltage:DC5V (5.5mm DC connector) Note: Please check as much as possible to make sure the item is what you need. Batch is different. Accessories have random colors, No specification is accepted. There are slight differences between the actual product and the picture. It does not affect normal use. Color: As Shown Material: PCB