1. No leakage, no wiring, long battery life 2. One-key switch, three modes can be switched at will, flashing/marquee/constant light 3. Applicable scenarios: bars, restaurants, weddings, parties, etc. 4. Power supply: CR1620 button battery x 2, replaceable when used up 5. Material: PC 6. Dimensions: diameter 10 cm, thickness 4 mm
