When you hold your hand near the dinosaur's jaw, the infrared sensor detects it. The non-contact design dispenses the appropriate amount of foam hygienically. Battery-powered, so there's no need for troublesome charging. As the foam comes out, a handwashing song plays for about 40 seconds (the recommended handwashing time), allowing you to learn the correct way to wash your hands while having fun. [Product Name] Dinosaur Auto Foam Dispenser [Dimensions] 9cm x 17cm x 21cm [Material] ABS resin [Weight] 380g [Soap Tank Capacity] 250ml (approximately 300 uses) [Compatible Soap] Foam-type liquid soap [Power Supply] 4 AA alkaline batteries * It will not operate correctly with manganese batteries. Please be sure to use alkaline batteries. [Installation] Tabletop [Country of Manufacture] China * This device is not waterproof. Also, the foam dispensing unit contains batteries, a motor, circuits, etc., so it cannot be washed with water.