Convenient 2 steps: direct charging function with matching USB charger, you can take the fan anywhere without worrying about insufficient power supply, as the battery life depends on the size of the charger. The two speed levels can be easily and noticeably operated. You use the device in the office or on the street when it gets too hot. Low noiseThe fan is ideal for travel and not too loud.For a powerful breeze with less noise (between 20 and 40 dB) .Fan stay cool and make only minimal noise so you can relax undisturbed. Complete Delivery The total product has a hand fan, a USB charging cable a nice rope that hangs the fan around the neck and yet a firm base. Suitable size, various colors: size is great, fits perfectly in the hand. There are 4 colors to choose from. Product descriptions Color Name: Blue Length: 126.5 mm Width: 79 mm Thickness: 21.5 mm Net weight: 68 g. Total weight: 113g. Number of files: 2 files Material: ABS + PP Input voltage: DC5V Working time: 1-2 hours. Working current: 0.5-800 mA. Power consumption: 2.5 W.Voltage: 5 V. Battery Capacity: 800mAh