Features: [Nordic Simple Style] Palm mini size light weight, compact and portable for easy carrying and storage. [4-Speed Switchable] 4 selectable gears of wind speed for conveniently meeting different requirements. [720 Rotation] 720 degree adjustable angle, achieving different angles of circulating air supply, flexible practical. [Silent Operation] Low decibels ultra silent, quieter than whispering, not afraid to disturb a baby. [Li-ion Battery Power Supply] With a built-in 4000mAh large capacity lithium battery and a standard USB interface, it is convenient to connect to desktop computer, laptop, and other devices for recharging. [Wide Application] Suitable for use in your office, bedroom, living room, dormitory, etc.