With a 30cm USB cable included, you may use it for years to come and charge your bag sealer whenever you want, wherever you are. It can operate for several months after being fully charged, saving you money on batteries. Design for Safety and Usability The potato chip bag sealer includes a built-in high-tech circuit board with a fantastic heat insulation effect, triple anti-scald technology, and double high-tech protection, making it dependable and safe.