i prefer headsets over earbuds.
[{"role": "system", "content": "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. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. 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. Headphones are also known as earspeakers, earphones or, colloquially, cans. Circumaural and supra-aural headphones use a band over the top of the head to hold the speakers in place. The other type, known as earbuds or earpieces consist of individual units that plug into the user's ear canal. In the context of telecommunication, a headset is a combination of headphone and microphone. Headphones connect to a signal source such as an audio amplifier, radio, CD player, portable media player, mobile phone, video game console, or electronic musical instrument, either directly using a cord, or using wireless technology such as bluetooth, DECT or FM radio. The first headphones were developed in the late 19th century for use by telephone operators, to keep their hands free. Initially the audio quality was mediocre and a step forward was the invention of high fidelity headphones.\n"}, {"role": "assistant", "content": "Headphones are important sometimes.  They allow me to listen to an audio source without anyone nearby hearing."}, {"role": "user", "content": "Yes, I agree. They are especially useful when travelling on a bus or airplane."}, {"role": "assistant", "content": "They convert electrical signal to a corresponding sound."}, {"role": "user", "content": "Have you ever tried the version that vibrates your eardrum to create sound? I tried Google Glass and that is how it worked."}, {"role": "assistant", "content": "No, I haven't.  That's interesting I didn't know that's how google glass worked.  It's an interesting hands free format."}, {"role": "user", "content": "Yes, I don't know if they still use that method but it was new to me when I tried the first version of Google Glass. I also like the noise canceling headphones."}, {"role": "assistant", "content": "Is Google Glass still available?  I thought they were discontinued.  They have a camera attached which is very interesting."}, {"role": "user", "content": "The last I heard is they are continuing to develop the technology. I think they are being used mostly for businesses that need the functionality of a face camera."}]