REMAX USB Battery Fan Mini for Desk Rechargeable 4 Blades Slient Fan Cooler 1800mah Battery Operated 3 Speeds Pocket Blower This REMAX rechargeable USB fan with 3 speeds adjustable.Easy to select 1 of 3 speeds for custom use.Can meets different needs. Built-in 4 blades, the strong wind power will let you keep refreshing for a whole summer. With lithium 18650 battery inside the fan,could be powered by laptop,power bank,18650 battery charger via USB cable. Very small in size and weight,only 220g,106*140*42 mm,with led flashlight,its very convenient for travel, outdoor sports,camping or classroom use. Adopt high quality material,ensure perfect performance and durability.