Product Description Features: You can assemble this product by selecting your preferred flashing method from four modes: dimming, flashing A, flashing B, and random flashing. In dimming mode, you can adjust the brightness with the volume control. Flashing A flashes quickly, while flashing B fades in and out slowly; you can adjust the flashing interval with the volume control. Random flashing changes the brightness irregularly, like the flickering of a flame. Product Specifications: Board size (approx.): 25mm x 35mm Power supply: DC 3-4.5V Current consumption (approx.): 15mA (max) Precautions for Use: Please read the instruction manual and use the product correctly. Manufacturer: EK Japan Co., Ltd. We will ship via anonymous delivery. Thank you for viewing.