Note: There is an sheet of insulation paper stick on the Battery, please remember to tear it down and wipe-off the dope before you use our Digoo Handheld Fan : Package Includes : 1 x Digoo DF-003 Handheld Fan 1 x Mental Clip 1 x 18650 Rechargeable Battery 1 x USB Charge Cable Digoo DF-003 Potable Mini Handheld Rechargeable Rotatable USB Cooling Fan Stepless Speed Regulating This Digoo DF-003 Portable USB Fan has a rechargeable build-in 18650 battery, can also be powered by USB cable and AC adapter. Its stepless speed regulating switch help you to choose the appropriate wind speed you want. It is mini and portable, so you can take it to any where, mainly for traveling or outdoor activities. For its special structure, not only you can clip it on your desk, but also you can hang it under your umbrella to cooling you, suitable for working, sporting or watching games. It will be your best friend in summer and the followed pictures will show Its humanized design : Features : Stepless speed regulating switch, satisfy any wind speed as your need. Made of high-quality ABS, has a solid structure and pressure-resistant. Equip with brushless motor, produce strong wind and offer long service life. Buil-in rechargeable 18650 battery, can also be powered by USB cable and AC adapter. Foldable, adjustable, can be clamped at your office desk, baby carriage, tent even your umbrella. It is a best partners in summer : Specification : Brand Model : Digoo DF-003 Handheld Fan Material Quality : ABS Power Supply : USB / AC Adapter / 18650 Battery Charging Time : 3 Hours Weight : 170g Speed Mode : Stepless Speed Regulating RPM :2200 r/min to 3100 r/min Size : 104mm x 44mm x 205mm