Features 1、LED Lights: The transparent LED coaster features 6 LED lights that emit bright white light. It offers three modes to choose from: fast flash, slow flash, and steady light, allowing you to create the desired ambiance. 2、300mAh Battery: Powered by 2 CR1620 button batteries, it can provide approximately 8 hours of continuous use. With its energy efficient design, you can enjoy extended usage without frequent battery replacements. 3、Versatile Application: The coaster is suitable for a wide range of scenes, including parties, weddings, bars, Halloween, Christmas, gardens, and more. It adds a touch of vibrant and colorful lighting, enhancing the ambience of any event. 4、Easy Operation: The coaster is designed for convenience. With just the press of a button, you can cycle through the different lighting modes. First click for fast flash, two clicks for slow flash, three clicks for steady light, and four clicks to turn off the lights. 5、Durable Construction: Made of PC material, the coaster is durable and built to last. Its non slip and stable design ensures it stays securely in place. With waterproof surfaces, but please refrain from submerging it in water. Specification Item Type: Transparent LED Coaster Material: PC Battery Type: CR1620 Button Battery x 2, 300mAh (shipped with built in battery) Size: Approx. 10 x 10cm / 3.9 x 3.9in Package List 1 x Transparent LED Coaster