Features 1、1. Powerful cordless air duster: Our air duster is proud of its capacity to produce a powerful trust of air at almost 10 level strong gale (28m/s) for deep cleaning of the microscopic board dust, to computer such as printed circuit instruments, medical devices, which can not be cleaned by your traditional wiper or duster. Its motor allows the maximum speed to reach up to 45000 RPM. 2、2. Rechargeable electric air duster: Built-in large 15000mAh lithium batteries allow this air duster to run nearly 60 minutes continuously. Its compatibility of getting charged via the USB-port makes it easy to charge and more practical. 3、3. Provide efficient cleaning: In order to save gas and water, we made this highly environment-friendly device as it allows more than 5000 times of use, and it is efficient in cleaning and eco-friendly. 4、4. Simple operation: The device is structured with an extended full-palm gripping design and withdrawable nozzle keeping the handle clear to let users grip it at their comfort. 5、5. Handy and portable: The air duster is small sized (about 189*79*131mm/7.44*3.11*5.16in) and lightweight (about 1.1 LB/475 G), easy to carry. Grip comfortably, operate simply. Specification Name: Cordless Air Duster Battery capacity: 15000 mAh Rated power: About 60W Charging current: 5V/ 2A Motor speed: 45000 RPM Charging time: About 7 hours Charging port: Type-C Product net weight: About 1.1 LB/475 G Product size: About 18.9*7.9*13.1cm (7.44*3.11*5.16inch) Package List 1*Cordless Air Duster 1*USB Charging Cable 1*Brush Nozzle 1*Long Nozzle 1*User Manual