1、Silent and strong wind, it won't disturb your sleep. Three adjustable wind speed, easy to control. 2、360° rotatable, can be freely adjustable, easy to feel the cooling wind at any corner. 3、Built-in 2000mAh battery, effectively reduce electric energy loss, improve working efficiency. 4、Powered by USB cable, multiple charging ways are available. Bottom mini storage tray desgin: convenient and practical to store small items, such as ear rings, bracklet, necklaces. 5、Perfect for use in the office, home, dorm, study, library. Features: 1. Silent and strong wind, it won't disturb your sleep. Three adjustable wind speed, easy to control.  2. 360° rotatable, can be freely adjustable, easy to feel the cooling wind at any corner.  3. Built-in 2000mAh battery, effectively reduce electric energy loss, improve working efficiency.  4. Powered by USB cable, multiple charging ways are available. Bottom mini storage tray desgin: convenient and practical to store small items, such as ear rings, bracklet, necklaces.  5. Perfect for use in the office, home, dorm, study, library.    Specification: Condition:100% Brand New Material: ABS  Power: 2W-7W Voltage: DC5V Charging time: about 3 hours  Usage Time: low level: 4.5h, medium level: 2h, high level: 1h.  Color: White, Pink, Blue(otpional) Size: approx. 19.6* 11.7* 20.4cm/ 7.7* 4.6*8in    Package list:  1 * Mini Fan  1 * USB Cable Note: 1. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.