Air quality measurement apparatus, namely, particle counters; Amplifiers; Bags adapted for laptops; Batteries; Battery chargers; Cameras; Car video recorders; Cell phone straps; Chargers for electric batteries; Chronographs for use as specialized time recording apparatuses; Computer based apparatus for designing the layout of electronic circuits; Computer hardware and computer peripheral devices; Computer hardware and computer peripherals; Converters for electric plugs; Covers for electric outlets; Devices for hands-free use of mobile phones; Earphones; Electric cables, wires, conductors and connection fittings therefor; Electric converters; Electric current switches; Electric power converters; Electrical pickups for use with musical instruments; Eyeglass cases; Eyeglasses; GPS navigation device; Hands free devices for mobile-phones; Headphones; Lap-counting devices, namely, counters for use during sporting activities; Length measuring gauges; Light systems comprising light sensors and switches; Loudspeakers; Mousepads; Neon signs; Portable telephones; Portable video cameras with built-in videocassette recorders; Set-top boxes; Slide or photograph projection apparatus; Smart card readers; Sound recording apparatus; Spectacle frames; Telescopes; Video monitors; Video screens; Wearable digital electronic devices comprised primarily of software for viewing, sending and receiving texts, emails, data and information from smart phones, tablet computers and portable computers, and display screens and also featuring a bracelet; Wireless communication devices for voice, data or image transmission; Wireless transmitters and receivers