ADJUSTABLE 3 SPEEDS SETTING : With powerful rechargeable 2200mAh battery, it can work about 3-9 hours according to the speed(soft, natural wind,and strong wind) to meet your needs. Press the "ON" to adjust the speed from low to high. Fast recharge only take 2.5-3 hours (Include 1m USB Cable) and also can be charged by computer, laptop,power bank, car charger etc. INTEL BLUE & SIDE LIGHT: If you need the light to light up your heart, Interl blue light: hold the ON button for several seconds whatever at any speeds . Sidelight: press the ON button four times. SPECIAL PORTABLE USB FAN: Our efluky fan has beautiful boday shape which can makes you so special in a vase sea. Portable fan can keep you always cool whenever or whereever, and you can carry this rechargeable fan to your bag for outdoor activities. WIDELY COMPATIBLE :Various application for office desk, camping tent,kitchen, dormitory, library, gym exercising, ,music festival concert, outdoors/indoors activities, awesome thanksgiving, christmas, new years gifts for friends, colleague and family trip. SWEET DESIGNS : Two anti-slip rubbers at the bottom help you prevent a dancing mini desk fan when used. Please peel off the protective films if your desk is a little slippery.