1、REPLACEABLE AND RECYCLEABLE: The wind power can reach 49000RPM, which can generate super strong airflow, the blowing force is 0.98‑16OZ, which is a substitute for compressed air, can be recharged and used, more energy saving and environmentally friendly than often buying canned air 2、APPLICABLE EQUIPMENT: Cordless air dust collector is suitable for cleaning computers, camera lenses, sofas, electronic equipment, etc. 3、TWO LEVELS: Press the power button to start working. When starting to work, the 2 level wind can be adjusted by you, the first level is 29000RPM, the second level is 49000RPM. Features an extended full hand grip design that allows users to grip comfortably 4、PORTABLE AND EASY TO USE: Small and portable, can be used for both blowing and suction, and easy to carry when going out. Two nozzles are provided. The long blower is suitable for cleaning corners or places that cannot be touched by hand, such as computer casings, and the blower brush is suitable for dusting rough surfaces, such as electronic keyboards 5、CHARGED IN MULTIPLE WAYS: Equipped with a fast charging port, can be quickly charged within three hours and can be operated continuously. The use time depends on the purging force, the first level is about 60 minutes, and the second level is about 37 minutes. You can charge via car charger, power bank