1. Gives your food and snacks loner shelf life
2. 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 .great ideal for home use.
3. Perfect reseal unused portions of food, keep the food fresh.
It needs 2 X AA batteries to supply power, and we suggest to employ alkaline battery. The batteries are NOT included.