Operates simply with 2 AA alkaline batteries (batteries not included). Hand held plastic bag sealer. Perfect for air tight reseal of chips, snacks, foods etc. Works with any plastic bag packaging. Magnetic bottom - It easily attaches to refrigerators or any stationary metal surface so you will keep it handy in your kitchen, outdoor, cabinet or anywhere you need it. ip: 1. Before use, press it for 5 second (pre-heating). 2. Slide it slowly will be better. 3. Our package do not include batteries. (batteries are not allowed for shipping).