The Acar board is an innovative control unit specifically designed for easy and intuitive control of WS2812B LED strips and playing MP3 files. With an operating voltage of 3V (2xAA batteries or 1 CR123 battery), it is ideal for mobile applications. The board features a Micro SD card slot, allowing you to play various MP3 files. Thanks to the integrated speaker connection, you can enjoy your favorite music or sound effects in high quality. With a button for controlling the lighting of the WS2812B LEDs, the board offers user-friendly operation. With a simple press of a button, you can turn the lighting on and off and control various light effects. The XYZ board is perfect for DIY projects, music boxes, light effects, and more. Explore the endless possibilities of creative design with this innovative control unit.