Overview We have personalized multi-color optional. Compatible with computers, laptops, portable chargers, and other devices with USB output.Perfect mini fan for the office, home, dormitory, study, library, games room, or outdoor.Ideal for hot weather or outdoor activities. The amount of air is comfortable and can be used in all seasons. Specifications: Power supply mode: USB Noise: 36dB or less Rated voltage: 5v Rated power: 5w Applicable area: 1Air Supply method: turn the page wind Speed gear: third gear Made of operation: mechanical whether to support charging: support speed adjustment gear: third gear Shaking your headway: shaking your head left and right grows weight: 170g Color: 3000mah power bank fan [pink], 3000mah power bank fan [white], 3000mah power bank fan [blue], 3000mah power bank fan [black], 3000mah power bank fan [green], bracket power bank fan [white], Stand power bank fan [pink], stand power bank fan [blue], stand power bank fan [green], lanyard handheld fan [pink], lanyard handheld fan [green], lanyard handheld fan [blue] Built-in battery capacity: 3000mah Size: 162*80*17mm Package Content: Mini electric fan x1