1、Smart Sealing: This bag heat sealer can quickly sealing and cut snack bags. When the rotate knob to the + position, place the bag to be sealed in the middle, and then slide it along the edge of bag at a slow and constant speed for sealing. Also can easily open bags by rotate the knob to ‑ point. 2、Quick Heating: The bag sealer adopt double heat sealing construction for quick and effective sealing of coated aluminium foil bag, PP, PE, PVC material under 0.3mm thickness, such as chip bags, vacuum sealed bags, etc. Not only avoid wasting food but also maintain the freshness and taste. 3、Practical Use: Made of ABS materials, can be held with one hand, so you can put it into your backpack for camping, hiking, vacation or other outdoor activities, and use it to reseal those leftover snack bags or fruit bags for storage 4、Better Design: Come with a hanging strip and the magnetic button, it can be easily hung on the wall and attached to the refrigerator, so you will keep it in your kitchen, outdoor, cabinet or anywhere you need it. When you don't need to use it, please turn the knob to the middle area of + and ‑ to lock it to avoid being scalded or stabbed. 5、Fast Charging: Equipped with a built in 18650 battery with 1300mAh large capacity, the bag sealing machine can also be charged through USB port for longer working hours.