Specification: Input Voltage: 5V; Input Current: 0.5-1A; Output Voltage: 5-9V; Output Power: 1.5-2.5W Battery Capacity: 800mAh Using Time: 1-2H Charging Time: 2-3H Instruction: Fully charge the product for the first time use. It can be be charged by power bank, computer and phone charger. Easy Control: Press the "+" or "-" button to adjust the wind speed. Long press "+" button for 3 seconds to turn on/off LED light. Features: Small size, light weight The mini camera fan is smaller than iPhone Plus Series and weighs 68g, flat shape makes it easy to hold and more space- saving, you can put it into pocket or bag; Wear it on your finger with the fan finger holder (included), very practical for your daily use and travelling. Premium motor, powerful wind The small portable fan is equipped with a very powerful motor, which can produce strong natural wind to keep you cool in places that don`t have air conditioner, you can feel cool 1m away from it. Battery powered, USB rechargeable The upgraded polymer lithium battery can support the mini fan run longer than the same capacity regular lithium battery, you can charge it through computer, power bank, car charger, regular socket, ect Creative design The colorful appearance looks cool and more match with summer, you will surely be the envy of everyone with this novel pocket fan. Environmental friendly Adopt environmental friendly ABS material, toxic free and safe, this portable fan is suitable for everyone including children. Warranty: 24 hour customer service. Please contact with our support team if you have any problem during using our product.