This handheld fan adopts advanced brushless motor technology, which can provide strong wind like wind and has 5 adjustable wind speeds Built in high-capacity battery, providing longer usage time with a single charging The USB charging interfaces is suitable for laptops, car charging equipment, and adapters The low desigh, ensuring Quiet operate and not interfering with your work, study, or sleep, making it an ideal option for libraries, offices, and dormitories Includes two interchangeable nozzles, use as a cooling fan or portable blower for versatile applications Small size, light weight, compact and portable Ergonomic handheld design, paired with a portable lanyard, makes it easy for you to put it in your pocket, wallet, or hangs it on your wrist