Rechargeable & Environmentally Friendly With a built-in 400mAh battery, the rechargeable hot bond bag sealer comes with a micro USB cable(included), so there is no need to buy extra AA batteries for this chip sealer, save your money and protect the environment. Usually, a full charge can support for 7*15 days (depending on the frequency of use)??-in-1 Bag Sealer&Cutter This mini bag sealer is a heat bag sealer, and also a bag opener. You can seal bags easily and keep your food fresh, also with the built-in sharp stainless steel blade to open the bags conveniently. 2-in-1 machine. Enjoy your fresh and crispy snacks. ??ffective for Multiple Packages This food bag sealer is suitable for packages of chips, cookies, salad, pet foods, etc. , as well as for packages of salad and vacuum bags, a must-have in daily life and kitchen cooking scenarios. Not for cling films, cellophane bags, kraft paper bags, or pure aluminum bags.