Features:1. Vacuum seal removes all air from the bag and then uses heat to form a secure seal.2. Just press hard with your hands, it is safe and easy to operate and use.3. This vacuum sealer can store your food under vacuum conditions to achieve the purpose of preservation and antiseptic.4. Suitable for a variety of foods, snacks, etc., convenient for daily storage and storage.5. Prevent mold and bacteria growth, keep nutrients intact. Eliminate burns in the refrigerator, reduce corruption and food waste.Specifications:Item Type: Vacuum SealerMaterial: ABS + Electronic BoardSize (L x W x H): Approx. 10 x 3.5 x 6 cm / 3.9 x 1.4 x 2.4 in.Weight: Approx. 228 g / 8.04 oz.Packing List: 1 x Vacuum SealerUse:1. After the battery is installed, it will not heat up automatically. It will only heat up after pressing.2. Install the battery according to the anode and cathode indications at the bottom of the battery slot. If the battery is installed in the opposite direction, the sealer will not heat up.3. After the battery is installed, continue to press for about 3-5 seconds to start heating.4. Put the sealing bag in the middle.5. After use, put the protective cover back on the heating wire without folding the battery.Note: Do not press violently when sealing, otherwise it will cause the metal contact piece to deform and no heat. The sealing bag must be kept clean and free of stains such as water and oil. Please note that the new type and old type of this product will be sent randomly, please make sure you don't mind before ordering.