We decided that 'Horny Harry' is a curse for couples and should be excluded from any roleplay fantasy we might practice in the future.
Sound is made of wiggling air. Electrons can also be wiggled. If you can convert air-wiggles to electron wiggles, you can send the electric ones down a wire, and do the conversion again to get the air-wiggles back. This is really all a microphone/speaker setup does.