Features 1、Powerful Battery Life: This jet fan features a big capacity 4000mAh battery with stepless speed regulation design. The maximum speed is 110000±10%, and the minimum speed is 22,500 ±10%. With the included Type C fast charging cable, it can be fully charged within 3 hours. 2、High Speed Brushless Motor: This compressed air duster features a high speed brushless motor with a maximum RPM of 110,000. Its strong and high performance effortlessly deals with surface dust, rain, water and snow. 3、Stepless Speed Regulation Design: Compressed air blower with the innovative stepless speed regulation function, the fan speed can be seamlessly adjusted from low to high by simply sliding the button upwards. The low speed setting is specifically designed for personal fan use, while the highest speed can even serve as a air duster. 4、5 Replaceable Nozzles: To meet your needs in various situations, this jet dryer is equipped with 5 replaceable nozzles that you can easily replace to meet the needs of different complex cleaning situations. 5、Versatile Usage: This portable air blower is suitable for dusting laptops, computers and keyboards, blowing up fires and blowing leaves outdoors, dry human and pet hair, removing dust from car interiors, clearing snow covering cars, blowing rainwater off car rearview mirrors, inflating air mattresses, blowing up balloons, serving as a fan for cooling down, and more. Specifications Item Type: ​​Compressed Air Duster Material: Aluminum Alloy Built in Battery: 4000mAh Lithium Battery (included) Speed (rpm/mins): Top Grade 110000±10%, Bottom Grade 22500±10% Control: Key, Slide Switch Gross Weight: 367g/12.9oz Package List 1 x Compressed Air Duster 5 x Nozzle 1 x USB Cable 1 x Instruction Manual