Apparatus for attaching protective films adapted for GPS tracking and location devices; protective films adapted for GPS tracking and location devices; card cases for GPS tracking and location devices; cases for GPS tracking and location devices; luminous sticker for attaching RFID card; USB charging ports; USB cables; cases for rangefinders; apparatus for attaching protective films adapted for liquid crystal displays for navigation systems; protective films adapted for liquid crystal displays for navigation systems; protective films adapted for liquid crystal displays for laptops; wireless speakers; transmitting and receiving apparatus for tracking objects using radio-frequency identification [RFID]; cases for transmitting and receiving apparatus for tracking objects using RFID; wireless chargers; stands for smart wireless speakers; covers for smart wireless speakers; smart wireless speakers; apparatus for attaching protective films adapted for smartwatches; protective films adapted for smartwatches; wireless charging stands for smartphones; protective cases for smartphones; straps for smartphones; apparatus for attaching protective films adapted for liquid crystal displays for smartphones; protective films adapted for liquid crystal displays for smartphones; covers for smartphone chargers; cases for smartphones; chargers for smartphones; cases for storing cards adapted for smart phones; personal digital assistants in the shape of a watch, namely, smartwatches; bands for personal digital assistants in the shape of a watch, namely, bands for smartwatches; bezel ring protectors for personal digital assistants in the shape of a watch, namely, bezel ring protectors for smartwatches; straps for personal digital assistants in the shape of a watch, namely, straps for smartwatches; cases for thermostats; cases for earphones; audio speakers with artificial intelligence; covers for electric remote controls; mobile phone ring holders; smartphone stands for automobiles; smartphone charger for automobiles; protective covers for tablet PCs; protective cases for tablet PCs; apparatus for attaching protective films adapted for liquid crystal displays for tablet PCs; protective films adapted for liquid crystal displays for tablet PCs; cases for touchpads; cases for headsets; portable rechargers