Digital Date & Temp Tracker:Smart Freshness Management: The smart vacuum sealer features a one-touch vacuum release button for effortless opening, a storage days counter to track freshness, and an internal temperature monitor to ensure optimal preservation conditions. No-Open Bean Monitoring:The transparent window lets you check beans without opening, cutting oxidation by 70% for fresher brews. No more guesswork-just precise, worry-free coffee Dual-Layer Silicone Seal with Pressure Adsorption;Featuring a one-way oxygen valve and pressure-adsorbing silicone, this dual-layer system dynamically vents carbon dioxide while creating a vacuum-like seal-blocking 99% of oxygen to prevent spoilage. Multi-Scene Kitchen Storage Jar:As a versatile kitchen countertop accessory, its airtight seal ensures optimal preservation for your ingredients, suitable for coffee beans, whole grains, tea, dried fruits, pet food, sugar, seeds, herbs, artisanal cookies, etc. Color: As Shown Material: Glass, Plastic, Silicone Specification: 250g Package Contents: 1*Coffee Beans Vacuum Sealed Tank Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.