Data processing equipment, namely, couplers; Computer mouse; pedometers; scales; Aerials and antennas; transmitters of electronic signals; cabinets for loudspeakers; headphones; Range finders and telemeters; telescopes; Electrical plugs and sockets; Electric contacts; Power socket, namely, electric sockets; Electric power converter; Alarms, namely, gas alarms, security and fire alarms, smoke alarms; electric door bells; battery chargers