Cordless and Portable:Food vacuum storage container built-in 2000mAh battery, only 4 hours charge time for 300-350 times of use and 4500 hours standby time. and portable, not take much space and easy to move and carry. One Button Operation and Auto Stop:Airtight canister with touch screen and indicator light, one button operation, long the power button to turn on and off, one click to check current status, double click to switch 'Vacuum' and 'Release'(Single click the power button to pause when working). It automatic stop working when finished. Keep Fresh Longer:Coffee canisters with airtight lids helps the food oxidation process and keeps them away from environments that may cause spoilage. Preserving maximum freshness and hygienic of food. 33Kpa Auto Vacuum:33kpa auto vacuum seal and air pressure monitor keep food fresh for longer. Low oxygen and dry environment below 33kpa make the beans stay fresh longer, 50% of beans increased under the airtight seal. Versatile Use:Vacuum storage jar with detachable silicone sealing ring is easy to clean, and jar is dishwasher safe(the lid can't rinse and immerse in water). Perfect for coffee bean, cereals, flours, fruits, nuts and so on storage.