Goodkin India Goodkin Rainbow Color LED Flashing 7 Color Changing Light (Set Of 2) ,Pour Water or Tea, Lighting Cup Plastic Coffee Mug  (350 ml, Pack of 2)

This cup is environmental protection transparent shine cup when pour into liquid (water, beverage, beer, etc) , it will light up and flash immediately, very magical, suitable for celebrate, party, bars, gifts and Diwali so on. Water induction cup, if no water in the cup, it will not light up. Suitable for: bar, discos, restaurants, leisure, party, friends gifts, etc. Power: button cell X 2 (included). To Replace Batteries: Unscrew the battery compartment door located on the bottom of the base, place new batteries in the battery compartment and screw on the battery door.Auto 7 colour Changing + flashing Water activated: It glows automatically when drinks are added Perfect for drink competition, see who is the first to finish the drink and turn off all the LED. The battery is replaceable. Perfect gifts for Kids on any occasion.