computers; liquid crystal display [LCD] monitors; data cables; data processing apparatus; USB flash drives; dog whistles; batteries, electric; portable power chargers; battery chargers; reflective safety vests; electronic training collars for animals; protective films adapted for smartphones; cases for smartphones; modular smartphones; eyeglasses; contact lenses; spectacle cases; smartglasses; smartwatches; smart speakers; microphones; loudspeakers; computer keyboards; mouse [computer peripheral]; printers for use with computers; surveying apparatus and instruments; electrical adapters; measures; inverters [electricity]; telescopes; protective helmets