★Long life& Easy Cleaning: The built-in lithium battery with long service life and excellent performance. The Smaller vaccuum cleaner can work up to 60 minutes continuous after fully charged. Washable filter, nozzle and brush keep it new and long lasting. ★Powerful Suction: The Desk Vacuum Cleaner Built-in 2000mAh lithium battery, rated output power is 8W .Two side air vents help for heat radiatio. (*PayAttention:Please keep the nozzle close to the plane so that the suction is greater. ★Cordless and USB charging port: Portable handheld Cordless vacuum cleaner, mini size and lightweight, convenient carry to anywhere you go. The package contains the USB data line,you can charge any time by plugging into the usb port.