This is a mini fan, made of material for durable to use. Perfect for indoor and outdoor use, fan can produce natural wind to keep you cool when reading, sleeping or waiting in line. It will be your best partner in such hot summer. Features - Material: ABS. - Power supply: Lithium battery(Not removable). - Battery voltage: 3.7V. - Charging : 5V/0.5A. - Charging time: 2-4 hours. - Output power: 1.5-2.5W. - Working time: 1-1.5 hours. - Speeds mode: 3 speeds. - Adoption of , this product is durable, handy and long-time use - Cool you down faster in hot days and from the tiredness. - Mini size design, also fits your bag with its tiny size and lightweight. - The wind speeds is strong, and you can enjoy the cool breeze. - Also can be a good present choice for your friends, they will be happy to receive this considerate present. Package list: 1 x mini desktop fan