USB Desktop Humidifier With Star Projection Colorful Water Ripple Ambient Light 1. Material: ABSPPPCElectronic Components 2. Rated input: DC 5.0V2.0A 3. Operating current: 2A 4. Rated power: 10W 5. Water tank capacity: 200ml 6. Spray volume: 10-25mlh, automatic power off when out of water 7. Colorful rotating starlight with adjustable speed. Essential oils can be added for relaxation and sleep. Any color can be selected. 8. Built-in smart chip with power off protection when out of water. 9. Clear projection, romantic images, no dizziness or eye strain. 10. Large opening for easy water filling and cleaning. 11. Weight: 360g 12. Dimensions: 140x140x120mm 13. Note: do not add essential oils directly to the crystal ball; add them to the water (essential oils are not included). Button instructions: 1. Atomizer switch: short-press the onoff button to activate the mist, warm light mode, and slow rotation of the starry sky light. Short-press the onoff button again to turn off the mist and light. 2. Light switch: short-press the onoff button to activate warm light mode. Short-press the onoff button again to activate the multi-color light cycle mode. Short-press the onoff button again to stay in single-color mode. short-press the onoff button again to turn off the light mode. 3. Starry sky light switch: long-press the onoff button to activate slow rotation of the starry sky light. Long-press the onoff button again to activate fast rotation. Long-press the onoff button again to stop the starry sky light. 4. Note: when the light is on, long-press the light button to switch modes. If slow rotation is currently selected, it will switch to fast rotation.