Specifications: Rated power: 5W Battery capacity: 1200mAh Battery life: 6 hours Product material: ABS + silicone + electronic components Fan voltage: 1st gear=5V 2nd gear=6.8V 3rd gear=7.7V Features: 1. 180 adjustable air outlet rotation,whether lay down,stand or sit,you can enjoy the coolness in different angles. 2. Can be hung on the neck,gripped in hand and put on the desktop,suitable for different occasion. 3. Built in 1200mAh lithium battery,long lasting endurance up to 6 hours,without usb conection,portable to anywhere. 4. It has three wind modes--sleep wind,natural wind and strong wind,meet different needs at different moments. 5. It works in low noise and lightweight,suitable for dormitory, office,bedroom and living room,outdoors and traveling. Package inculdes: 1. Cooling Fan*1 2. USB cable*1 3. Manual*1