More Improvements & Performance Upgrade Compared to the old model, we've upgraded the battery, air intake motor, and green light LED. Multipurpose Rechargeable lithium battery, powerful compressed air can be used for computer dust removal, keyboard dust removal, camera lens dust removal, blind dust removal, car interior dust removal, printer dust removal, razor dust removal. Rechargeable Battery Our cordless air duster features a built-in high-capacity 1000mAh lithium battery, allowing this duster to run for nearly 30 minutes continuously. 10W Fast Charging Comes with a USB fast charging cable, fully charged within 6 hours. A solid red light indicates a full charge. It can be charged by computer, mobile power, car charger adapter. Environmentally Friendly For the price of 10 air cans, you can have a reusable air duster, saving money and protecting the environment. It's a great product to replace canned air.