?Service?From the date of purchase, we provide a 12 months warranty, If you have any questions about the use of the product, please contact us, we will solve it for you within 24 hours. ?Multi-use? The compressed air duster is equipped with 5 different nozzles and 6 brushes, suitable for various occasions, to meet different cleaning demand,This compressed air duster not only cleans crumbs, hair and dust from PC, keyboards, sofas, fax machines, printers, and air conditioners, but it can also air up swimming laps, air cushions, kayaks and more, and this air blower can even be used to blow up fires on the barbecue. It's the perfect choice for household, office, and car dust clean. ?Type-C Charging?Compressed air dusters can be used as an alternative to canned air and can be recharged and used repeatedly, it more environmentally friendly and energy-efficient.Built-in 8500mAh rechargeable battery, which can run continuously for 140 minutes. It can be charged by computer, mobile power supply, car charger, or adapter. it’s way more convenience and efficient. ?Mini Air Duster&Metal Design?Our Mini Air Duster it’s Made of aluminum alloy, Small size and portable.It’s compact and lightweight computer or laptop keyboard cleaner is more durable than those made of plastic! It is easy to use anywhere, making it perfectly for use at home and office ect.. ?Upgraded Newly Desgin Compressed air Duster metal?Our This Air duster it’s made of metal.and have upgraded Infinite Speed Adjustment Wind button.Non stage air volume adjustment and automatic injection" is a non stage adjustment type that can be adjusted to the strength of your choice according to the usage scene. Button The amount of the wind gradually increases, and the button The amount of air gradually decreases. It is equipped with a large capacity battery, and can be used for one 140 minutes in one charge. It automatically blows the crumb of the saw work, the cutting of the drilling drill work, and the dust of the digital camera and the keyboard automatically.