Compare with hand vacuum pump, our rechargable vaccuum sealer pump work faster and easier. It will be finished in about 10 seconds, espcially good for women for kitchen. We include 30 PCS reusable vacuum bags with 3 size, large ,medium and small, which meet mostly daily need. The bags after vaccuuming air will keep foods fresh and longer. The bags are reusable, you can wash and dry them to reuse, save money