Main body size: Approximately 10cm width x 10cm depth x 13cm height. Main materials: ABS resin, polypropylene. Safe ultrasonic type that does not get hot. Power supply: DC 5V (USB power). Water tank capacity: Approximately 300ml. Humidification amount: Approximately 40mL/h. Humidification method: Ultrasonic type. Continuous operation time: 6 hours (* Automatically turns off the power). Please be sure to use tap water in the water tank. (C)1976,2023 SANRIO CO., LTD. (P)