Powerful Turbo Fan: Rosewill electric air duster reaches speeds of up to 120,000 RPM Wide Application and Easy Use Cleaning Tool Economical and Reusable: Built from durable materials with long-lasting battery 5000mAh (2*2500mAh) Portable and Lightweight: Weighing only 0.48 lb, compact compressed air duster is easy to carry. The electric air duster recharges in just 3.5 hours with a type-C cable. Enjoy up to 240 minutes of use on the lowest setting, with four charging options to suit your needs