history: hi, I would like to know about headphones.
knowledge: Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby to hear.
response: Headphones which are worn over the ears allow people to listen to audio privately without disturbing others.
history: hi, I would like to know about headphones.
Headphones which are worn over the ears allow people to listen to audio privately without disturbing others.
really, how do they accomplish that?
knowledge: They are electroacoustic transducers, which convert an electrical signal to a corresponding sound.
response: Essentially, they convert electronic signals to sound.
history: hi, I would like to know about headphones.
Headphones which are worn over the ears allow people to listen to audio privately without disturbing others.
really, how do they accomplish that?
Essentially, they convert electronic signals to sound.
oh my. I would have never guessed. Are there different types of headphones?
knowledge: The other type, known as earbuds or earpieces consist of individual units that plug into the user's ear canal.
response: Yes! You can use earbuds to plug inside your ears, instead of over your ears
history: hi, I would like to know about headphones.
Headphones which are worn over the ears allow people to listen to audio privately without disturbing others.
really, how do they accomplish that?
Essentially, they convert electronic signals to sound.
oh my. I would have never guessed. Are there different types of headphones?
Yes! You can use earbuds to plug inside your ears, instead of over your ears
wow, I wonder when those first came about...
knowledge: Headphones (or head-phones in the early days of telephony and radio) are a pair of small loudspeaker drivers worn on or around the head over a user's ears.
response: I don't know for sure, but at least since the early telephone and radio days.
history: hi, I would like to know about headphones.
Headphones which are worn over the ears allow people to listen to audio privately without disturbing others.
really, how do they accomplish that?
Essentially, they convert electronic signals to sound.
oh my. I would have never guessed. Are there different types of headphones?
Yes! You can use earbuds to plug inside your ears, instead of over your ears
wow, I wonder when those first came about...
I don't know for sure, but at least since the early telephone and radio days.
oh, I guess that makes sence.
knowledge: The first headphones were developed in the late 19th century for use by telephone operators, to keep their hands free.
response: Yep. Developed ithe late 1800s for phone operators to free their hands.