PORTABLE MINI HUMIDIFIERThe palm-size 240ml portable humidifier is suitable for small space such as bedroom, car and office. It can be charged by any USB port to humidify the air and moisturize the skin. WHISPER QUIET OPERATIONThis mini humidifier works silently with noise under 30db (quieter than whisper). It wont bother you while working and sleeping. SAFE & AUTO SHUT-OFFThe humidifier will be automatically turned off after 8 hours to prevent it from dry burning and eliminate possible safety hazards. 7-COLOR CHANGING NIGHTLIGHTS7-color changing light adds more fun and will bring you romantic atmosphere. You can long press the button to turn off the light and enjoy undisturbed and soothing sleep. NOTEPlease soak the cotton stick completely before using. Please use TAP WATER rather than distilled water or pure water to avoid water block on the top Any quality problem, please feel free to email us