headphone
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AI overview
A headphone is a device worn over or in the ears that produces audio sound for personal listening. Headphones matter because they allow individuals to enjoy music, podcasts, videos, and other audio content privately without disturbing others nearby.
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Article
38 sectionsContents
- {{anchor|history}}History
- Applications
- Applications for audiometric testing
- Electrical characteristics
- Impedance
- Sensitivity
- Specifications
- Ear adaption
- Circumaural
- Supra-aural
- Ear-fitting headphones
- Earphones
- In-ear headphones
- Open- or closed-back
- Headset
- Telephone headsets
- Communication headsets
- Ambient noise reduction
- Connectivity
- Wired
- Wireless
- Transducer technology
- Moving-coil
- MEMS
- Electrostatic
- Electret
- Planar magnetic
- Balanced armature
- Thermoacoustic technology
- Other transducer technologies
- Benefits and limitations
- Health and safety
- Dangers and risks
- Occupational health and safety
- See also
- Notes
- References
- External links
thumb|AKG (company)|AKG headphones on a stand
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. Headphones are also known as earphones or, colloquially, cans. Circumaural (around the ear) and supra-aural (over the ear) headphones use a band over the top of the head to hold the drivers in place. Another type, known as earbuds or earpieces, consists of individual units that plug into the user's ear canal; within that category have been developed cordless air buds using wireless technology. A third type are bone conduction headphones, which typically wrap around the back of the head and rest in front of the ear canal, leaving the ear canal open. In the context of telecommunication, a headset is a combination of a headphone and microphone.