Feature: 1. 【Keep Fresh Longer】Coffee canisters with airtight lids helps slow down the food oxidation process and keeps them away from environments that may cause spoilage. Preserving maximum freshness and hygienic of food. 2. 【33Kpa Auto Vacuum】33Кра 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% lifetime of beans increased under the airtight seal. 3. 【One Button Operation and Auto Stop】Airtight canister with touch screen and one button operation, automatic stop working when the pressure reaches -33kpa. Besides, it will vacuum again automatically when the inner air pressure rises in standby mode. 4. 【Cordless and Portable】Food vuccum storage container built-in 2000mAh battery, only 4 hours charge time for 350 times of use and 4500 hours standby time. Lightweight and portable, not take much space and easy to move and carry. 5. 【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, ruits, nuts and so on storage. Specification: Specifications: Color: Transparent / Black (optional) Main Material: Glass(Transparent) / Stainless Steel(Black) Jar capacity: 1.6L/54oz Battery capacity: 2000mAh Vacuum pressure: -33±10%Kpa Charging port: Type-C Size: 198*120mm/7.8*4.7in Weight: 610g/21.5oz Package List: Packing List: 1 * Vacuum Jar 1 * Charging cable