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Headphones 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.…
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sound used audio telephone use headphone ear volume also hearing impedance radio using source headsets wireless diaphragm signal head noise
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| an audio amplifier | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| radio | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| CD player | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| portable media player | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| mobile phone | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| video game console | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| or electronic musical instrument | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| either directly using a cord | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| or using wireless technology such as Bluetooth | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| DECT or FM radio | instance of | a headset is a combination of a headphone and microphone.Headphones connect to a signal source | 0.80 | text |
| sidewalks | instance of | headphones started to be used in public places | 0.80 | text |
| grocery stores | instance of | headphones started to be used in public places | 0.80 | text |
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