Ad
related to: check if headphones are working
Search results
Results From The WOW.Com Content Network
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 ...
Modern headphones use electromagnetic drivers that work similarly to speakers, with moving coils or moving iron cores in a magnetic field. One remaining use for crystal earpieces is in crystal radios .
Headphone outputs and line outputs are sometimes confused. Different make and model headphones have widely varying impedances, from as little as 20 Ω to a few hundred ohms; the lowest of these will have results similar to a speaker, while the highest may work acceptably if the line out impedance is low enough and the headphones are sensitive ...
A headset is a combination of headphone and microphone. Headsets connect over a telephone or to a computer, allowing the user to speak and listen while keeping both hands free. They are commonly used in customer service and technical support centers, where employees can converse with customers while typing information into a computer.
Simplified graphical depiction of active noise reduction. To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control or ANC.A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds.
Beats Solo 4 Wireless Noise Cancelling Headphones ($100, originally $200): Noise-cancelling headphones can keep you sane if you’re trying to get your work done around screaming kids or watching ...
Some services will pay you even if your devices are not working. To get the best deal for your devices, you need to choose the right service. Here are some services that you can use:
Headphones, earphones, and earpieces are a kind of speaker which is supported either on the user's head, or the user's ear. Unlike a speaker, headphones are not meant to be audible to people nearby, which suits them for use in the public , office or other quiet environments.