Ключевые слова: background, black, business, button, click, communication, computer, connection, control, cordless, device, electrical, electronic, equipment, gray, grey, hardware, industry, input, instrument, internet, laptop, laser, mouse, object, office, one, optic, optical, personal, plastic, pointer, portable, push, scroll, scrolling, silver, single, small, tech, technology, tool, wheel, white, wireless, work,