Rechargeable Battery Fan: Exquisite Mini Hand Fan, 10cm, 2.4g. Lightweight and small enough to fit in a purse or handheld, it's the perfect size for indoor and outdoor activities, offices, subways, travel, camping picnics, hiking. 2000mAh Large Capacity Battery & 2 Wind Modes: The mini USB handheld fan has 2 speeds, press once for soft wind, press twice for strong wind. After fully charged, it has a built-in 2000 mAh large battery, which lasts about 6 hours at high speed and 12 hours at low speed. VERSATILE OCCASIONS - Bring a Cool Breeze Everywhere: This mini portable fan can be placed on a table or held in hand. It can be used indoors, such as at home, office, school, etc. It can also be used for outdoor activities such as tourism, beach, waiting, camping, mountaineering, etc. Upgraded non-slip silicone design: 17°bending angle is just right to place your desk, and the silicone at the bottom effectively prevents the fan from sliding due to vibration when working on a smooth desk.