[USB Charging]With fast charging technology and a reliable lithium battery, the mini vacuum takes only 3-4 hours to fully charge and can work for 25-30 minutes. [Cordless Mini Vacuum] This portable handheld vacuum provides suction and cleaning performance to quickly remove hair, crumbs, dust, sand and dirt . [Easy to Maintain & Clean]The hand held vacuum is equipped with HEPA filters and both filters can be disassembled for cleaning, making it more and easier to maintain than regular filters.