Rechargeable battery fan: Exquisite mini hand fan with 10 cm, 2.22 g. Lightweight, small enough to fit in a handbag or a handheld device, perfect size for indoor and outdoor activities, office, subway, travel, camping picnic, hiking . 2000mAh large capacity battery and 2 wind modes: the mini USB hand fan has 2 speed, press once to soft wind, press twice for strong wind. Built-in large 2000mAh battery after full charging takes the high speed about 6 hours, and the low speed about 12 hours. SUITABLE FOR MANY OCCASIONS - Bring cool wind with you everywhere: This mini portable fan can sit on your desk or handhold. It can be used indoors, such as home, office, school and so on. It Also Can Be Used For Outdoor Activities Such As Travel, Beach, Waiting Bus, Camping, Climbing And So On. Upgrade the non-slip silicone design: 17 bend angle just right to place your desk, the silicone on the bottom effectively prevents the fan from slipping due to vibration when working on a smooth desk