This night light is rechargeable so no batteries are required. Tapping the light changes the color. Have Hero turn off automatically after 15 minutes or leave it on all night. Both options are possible using the on / off button. The light is made of soft material and is ideal for children who want to go to bed, cuddle and play with. LED Night Light / Hero - Tap to Change Color (Soft Light, Strong Light, Red, Yellow, Green, Blue, Multi-Color). - Install built-in battery Compatible with Micro-USB - Switch off automatically after 15 minutes or stay on all night - Dimensions: 11 x 16 x 7.5 - Weight: 175 grams - Charging time: 2 hours Operating time: 10-20 hours In the Box: Flow Amsterdam robot night light with integrated battery, micro USB cable