Turbo Fan Design This handheld fan simulates the design of an aircraft turbine engine, efficiently delivering large volumes of air with minimal noise. It incorporates 315° inclined fan blades, 3 times higher air speed than ordinary 180° fan blades. 2 adjustable wind speeds, low speed: 5500 rpm, high speed: 8000 rpm. Compact and Portable This portable fan measures 7.6 x 2.3 x 2.4 inches, weighs only 0.33 lbs, and fits easily into bags and pockets. The small fan has a climbing loop and can be hung on bags, the loop can also be folded 90° and placed on the table as a desk fan. USB rechargeable This mini fan is powered by a rechargeable battery and includes a USB cable in the package compatible with all USB charging ports such as power banks, laptops, adapters and car chargers. It only takes 3 hours to fully charge, and it can be used anytime after charging, which is very suitable for outdoor use. fans to prevent children from sticking their fingers. Multi-purposeThis personal fan not