Vacuum Sealer for Mason Jars – Convenient, Reliable, and Portable • Automatic Pressure Control – Built with a smart pressure sensor, this vacuum sealer makes jar sealing simple and consistent. Just press the button, wait approximately 40 seconds or more, and the unit automatically stops once full pressure is reached. This ensures airtight sealing without guesswork, helping preserve freshness longer. • Wide Compatibility – Designed to fit universal mason jars with 3.4inch and 2.75inch diameters, giving you flexibility to seal different jar sizes without separate adapters. • Portable and Rechargeable – Compact design with USB TypeC recharging capability lets you use it at home, during travel, or on picnics while saving countertop space. The builtin battery has passed over 100 full power performance tests and offers up to 500 hours of continuous runtime per full charge. • Freshness Protection for Food Storage – Effectively removes air from jars to lock in flavor, nutrients, and texture. Keeps contents fresh by preventing air exposure, moisture ingress, and taste deterioration over time. Ideal for storing dry goods, herbs, coffee, snacks, and other pantry items. • Easy Installation – Align the red arrow with the unlock symbol, insert the silicon ring and turn clockwise until the arrow lines up with the lock symbol for a secure fit. If the rubber ring is out of place or not sealed properly, simply reinstall following the same steps. Practical Applications: 1. Longterm storage of dried ingredients such as rice, beans, and spices without loss of flavor. 2. Preserving baking ingredients like flour and sugar in airtight conditions to prevent clumping or contamination. 3. Sealing homemade snacks or treats for freshness during travel or outdoor activities. This vacuum sealer combines ease of use, reliable performance, and versatile compatibility, making it a dependable solution for extending the shelf life of jarstored foods while maintaining quality.