Specifications: Size: 72x69x190mm Working voltage: DC 5V/2A Maximum power: 6W Charging time: about 4 hours Charging interface: Type-C Battery: 4000mAh Battery life: about 2-9 hours Cold compress: first gear Fan: adjustable in three gears Features: This Handheld Mini Fan with cold compress function. The ice ball in the middle part of the AA is cooled by semiconductors, which can be cooled in 10S. The surface temperature of the ice ball is 12-15 degrees Celsius. Put it close to your hot skin, it's as cool as ice STRONG WIND SPEEDPersonal Portable Fan is lightweight and portable, you can take it anywhere. Can be suitable for outdoor sports, indoor exercise, offices, gym, travel and camping. This fan is pretty awesome - it's lightweight, rechargeable and has 3 speed settings NOISE DESIGN The motor of this USB Rechargeable Hand Fan has been modified to make less noise during operation. FunctionThis Portable Cold Compress Hand Held Fan can not only be used as a simple fan, but also can activate the cooling function to cool the hot skin, and can also apply cold compresses to the wound temporarily to relieve pain EASY TO USEThe battery capacity of this USB Handheld Fan is 4000mAh, providing you up to 9 hours(the 1st Speed) continuous cooling.continuously depends on different wind speed. Comes with a 5V Type-C cable to connect to phone plug, power bank, laptops and computers as a desk fan. It will be fully charged within 4 hours Packing includes: 1 X Cold Compress Handheld Fan 1 X Type-C cable 1 X Manual