Ключевые слова: amplifier, application, arrow, audio, button, click, collection, communicate, communication, contract, control, device, digital, disk, display, element, equipment, extend, forward, frame, icon, interface, loudspeaker, media, meeting, megaphone, melody, multimedia, music, musical, mute, noise, play, player, pointer, project, resize, screen, set, sound, speaker, symbol, tablet, technology, up, upward, volume, volume up, web,