Bright And Colorful Night Light Mode: This Ultrasonic Humidifier Features A Colorful Marquee And A Warm Yellow Night Light, Which Not Only Provides Soothing Mist, But Also Can Be Used As A Decorative Night Light To Create A Peaceful Atmosphere And Give You The Greater Degree By Relax And Improve The Quality Of Your Sleep Two Spray Modes And Automatic Shut-Off Function: Continuous Spray And Intermittent Spray. The Continuous Spray Time Is Up To 5 Hours, The Humidifier Will Automatically Turn Off After 5 Hours, And The Intermittent Spray Time Is Up To 10 Hours, And The Humidifier Will Automatically Turn Off After 10 Hours. Don'T Worry About Damaging The Humidifier When Running Out Of Water, You Can Use It While You Sleep. Quiet Ultrasonic Operation: The Humidifier Uses Ultrasonic Technology, And The Working Volume Is Close To 23 Db. This Humidifier Will Not Disturb You When You Are Sleeping Or Working. Doesn'T Affect Your Work Or Life, Effectively Moisturizes Dry Skin Portable And Usb Power Adapter: Small And Exquisite Design, Very Easy To Carry. The Usb Power Adapter Is Compatible With All Usb Ports On The Device And Can Be Easily Used In The Bedroom, Office Or Car. Easy To Use: The Humidifier Is Very Easy To Use. Press Once To Start Continuous Spray, Press A Second Time To Start Intermittent Spray, Press Again To Stop. Long Press The Power Button To Turn On The Marquee, Long Press Again To Turn On The Colorful Gradient Light, Double Click To Turn On The Warm Night Light, And One Key To Control All Functions