Feature: 【Quiet Mini Humidifier amp; Auto Shut-off】 with new ultrasonic technology supports a quiet working noise lt;30dB, it wont disturb your bedtime,working or study. after 5 hours usage, it will automatically shut down, protect the device, continue to use after restarting. 【300ML Mini Humidifier】the palm-size portable humidifier,without occupying many space,the mini USB humidifier easily gets a place on any table and can be charged by any USB port to give you a better air.you can pack it in your handbags,backpacks and suitcases to take it anywhere. 【Two Mist Modes】it has two mist modes: intermittent mist(3 seconds on/3 seconds off) amp; continuous mist.spray volume:30-45ml/h. 【Night Light Mode】it has two night light modes: colorful gradient mode and warm white mode,so you can find your favorite mode when spraying the mist to improve your sleep quality,alleviate the discomfort and moisturie your skin. 【One Button Control】it is easy to operate,one button controls for all functions,including spray on/off/mode swith and night light on/off/mode switch.with the USB power port,you can charge it with computers and mobile phone.the spare cotton swab can be easily replaced to extend the life of the humidifier. 【Various Occasions】it is compact and convenient to use in office,yoga,car,bedroom and travel scenes. Note: please soak the cotton swab few minutes before using. Please DO NOT add essential oils or distilled water into the humidifier,which will cause the product to malfunction. Parameter: Material: ABS/Silica Gel/Electronic no Piece Regular Shutdown: 5 hours Rated Input: DC5V/1A Operating Current: 250-350mA