85183000Microphones and stands therefor; loudspeakers, if mounted inside their enclosures; headphones and earphones, if coupled with a microphone, and sets consisting of the microphone and one or more loudspeakers; audiofrequency electric amplifiers; electrical sound amplifier set headphones and earphones, whether or not coupled with a microphone, and sets consisting of https://new-technology-2024-gadge48976.tinyblogging.com/5-easy-facts-about-technology-and-gadgets-described-74334440