Quiet operate: The noise levels is below 36.0dB ( A), ensuring Quiet operate and not interfering with your work, study, or sleep The five leaves fan designs optimizes airflows while minimizing noise, making it an ideal option for libraries, offices, and dormitories Suitable for various occasions such as travel, camping, sports, offices desks, student dormitories, It is also a thoughtful birthdays, holidays, or company event Portable pocket design: 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 Powerful high-speed cooling: This handheld fan adopts advanced brushless motor technology, which can provide strong wind and has 5 adjustable wind speeds Rechargeable battery: Built in 1800mAh high capacity battery, providing longer usage time with a single charging The USB charging interfaces is work with laptops, car chargers, and adapters