Sound Discussion

Using the How Stuff Works(https:f/science.howstuffworks.com/sound-info.htm) website, your text, and any other information, choose ONE item that uses sound technology. (ie. HDTV, ipod, cell phone, etc.). Write an essay on how the item works. Continue the essay to explain how the item you chose demonstrates the physics of sound. (MUST BE DETAILED using physics terms. )