Earphones; Loudspeakers; Microphones; Mousepads; Scanners; Webcams; Bags adapted for laptops; Cases for mobile phones; Measuring apparatus, namely, laser distance meters; Multimedia projectors; Personal stereos; Plug adaptors; Protective covers and cases for tablet computers; Protective films adapted for smartphones; Rechargeable electric batteries; USB cables; Wireless headsets for smartphones; Downloadable network video recording software for IP (Internet Protocol) video surveillance