Drop Resistant And Durable: The Hard Material Makes It Sturdy, Not Easy To Fall Off And Equipped With A Safe Rechargeable Battery, Which Can Work For 3-10 Hours After Being Fully Charged And Can Be Recharged Repeatedly To Ensure Safe Use. 3 Adjustable Speed Levels: Provide High-Low Speed-Medium Speed-High Speed Power, Press The On/Off Button Repeatedly To Adjust The Appropriate Fan Speed, And Finally Turn On The Led Light At The Bottom From The Fan So That You Can Use It On Different Occasions. Usb Charging: Equipped With A Usb Charging Cable, Compatible With A Variety Of Usb Output Devices, And Can Work And Charge With Usb Charging Pads. Power Supply, Usb Chargers, Laptops, Computers, Mobile Power Supplies And Other Usb-Enabled Devices. Brushless Motor: The Maximum Speed Is 4800 Rpm, The Average Speed And Stable Speed P Can Effectively Reduce Air Resistance, Create A Natural And Smooth Feeling Of Wind, And Bring You Coolness Anytime And Anywhere.