A dual-purpose packaging for a pet-related product includes a flexible, non-toxic and bite-resistant enclosure filled with a pet-related product. or greater by plasma CVD using a raw material gas including monosilane and nitrogen. The main pressure operating chamber and the auxiliary pressure operating chamber are connected to each other through a connecting hole. The spacer has an exposed adhesive facing the portable device and having adhesive strength enabling repeated removal and re-attachment. The local reference processing center is in communication with the local reference network in order to receive local network data and form local enhancement data.