Tap the bottom of the cup on the table to watch baby be captivated by the lights on this fun cup! The easy sip cup has a bite resistant hard spout and double wall insulation which keeps drinks cooler longer. Battery included: Do not microwave, put in dishwasher, or boil. Out of this world fun! The fun light up cup illuminates when you tap the pressure sensitive cup on a flat surface. Your little one will love the fun prints and vibrant colors. The trainer cup features a durable and bite resistant and uniquely designed no spill spout. The double wall insulated base keeps drinks cooler for longer! The cup is shaped for little hands to easily grip & hold, making it easier for them to practice drinking independently. The cup is shaped for little hands to easily grip & hold, making it easier for them to practice drinking independently.