The Snow House Humidifier is a battery-powered, convenient humidifier with CE/FCC/EMC/RoHS certification. Includes one MLYN ZAY H10 main unit, one cotton wick, a USB data cable, and a Chinese and English instruction manual. This product has two settings. 1. Click the switch for the first time to activate continuous spray mode. Dimensions: 129*129*125mm. 2. Click the switch again to switch to indirect spray mode. 3. Click the switch a third time to turn off the spray. Lighting Instructions: 1. Press and hold the switch to activate night light mode. 2. Press and hold the switch a second time to turn off the night light.