The auto power-off function will switch off when the table vacuum cleaner does not work for 10 minutes, which ensures a high endurance from just one charge. High capacity lithium-ion battery provides up to 400 minutes of continuous cleaning time, just charge for 2-3 hours. Features a powerful 1400mAh built-in rechargeable battery. You can easily be cleaning dust of desktop, computer, keyboard, etc. With 1000Pa of suction power. Orders of 3000 pieces or greater are eligible for sea shipping.