Fast Sealing:This mini bag upgrade widens the heating element, no preheating is required and sealing takes only 3 seconds. usb charge, 2 hours fully , can be used for a month. No need to buy batteries, reduce expenses and protect the environment. Convenient storage: This chip bag has a magnetic back that can be attached to a refrigerator or other metal area to save space and can be found quickly when in use. This plastic bag is small and portable enough to keep in your bag, avoid putting it with your electronic cards. This bag mini has a unique safety lock design.When the knob is in the "+" position, it seals the bag quickly; when the knob is in the "-" position, it can be used to cut a bag. Turn the safety switch to the "left or right" middle position, the safety lock function can prevent the equipment from being accidentally started, causing accidental injury to children. Suitable for potato chip bags, vacuum sealed bags, cookie bags, pet food bags, etc. PP, PE, PVC bags. Not suitable for film, cellophane bags, kraft paper bags or pure aluminum bags. Colour:Photo Color Material:ABS Size:11 x 3.7 x 4.5cm Package Contents: 2 x Sealing machine 2 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.