Features liquid induction function, automatiy turn on when submerged in water. These amazing LED ice cubes are completely waterproof. They are designed to be used in drinks and create a surprising effect. Cannot be frozen. LED turns on automatiy if placed in water. Ideal for wedding, party, birthday party or parties. Not recommended for liquids that must be consumed. Can be placed in all kinds of liquids to create a mysterious and romantic atmosphere. : Tip: You can put them in your glass or water, but the temperature can not be too much high; Battery is not replaceable; Continuous lighting time of about 8-25 hours. Use medium: After cleaning the ice, water or glass, it will automatiy light up, after use, clean with a cloth then place in a dry place for next use. These lights will add shine when It is added to your vases, display jugs and looks great in clear wine coolers. They can be used to enhance displays at home for parties, weddings and other events. These little lights Smart LEDs are illuminated when you put them in a liquid. Not recommended for use in liquids that must be consumed. The LEDs automatiy turn on when placed in water and go off when you take them out Not suitable for children. Specifications: Weight: 201g Color: Multicolor Size: 26 x 26 x 27mm battery life: 10-20 hours Material: PS + electronic components Package contains: 12 * LED illuminated ice cube<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store