85183000Microphones and stands therefor; loudspeakers, whether mounted in their enclosures; headphones and earphones, whether or not combined with a microphone, and sets consisting of the microphone and one or more loudspeakers; audiofrequency electrical amplifiers; electric powered sound amplifier set headphones and earphones, whether coupled with a microphone, and sets consisting https://new-technology-2024-gadge40581.widblog.com/85599115/fascination-about-technology-and-gadgets-article-for-students