Headphone jacks are used to plug in wired headphones. The headphones can have different purposes. Most commonly they are used for listen to music, video audio and even phone calls.
conecting a pair of headphones
True. The line in the connector is a socket used to attach an audio source. The headphone connector is a socket that is used to attach an audio output device.
Blow compressed air into the jack (headphone socket)
No . They receive the sound from the bluetooth transmitter in the device so no need to plug anything into the socket
Yes, you can use any earphones with any electronic device as long as the earphones plug fits into the socket.
A headphone amplifier can be used with a hi-fi system although is not necessary. Most hi-fi systems have the ability to have headphones directly connected through a dedicated output socket. The headphone amplifier can become useful when using high end headphones and connecting them to individual components of the hi-fi system or with many of today's portable music devices.
Because the connector from your headphones is not in the socket, therefore the audio current cannot travel to your headphone speakers, and the headphone will not emit any noise.
In the top of the iphone, next to the headphone socket. You will need to use a paperclip or similar to open the SIM slot.
i just got my iphone 4 and it looks like the headphone socket fits in beautifully. it doesn't rattle and looks snug - i guess it was purpose built for the iphone 4. as for fitting a plug into this socket - that's another matter entirely. mine appears slightly too big to receive a generic 3.5mm stereo plug.
There is a combined headphone and optical digital audio output (minijack) socket. On the current iMacs it is the first socket on the back.
Headphone amps are used in a variety of devices. They are usually embedded in headphones and amplifiers to improve the quality of the sound for the listener. .
Headphone splitters are a device you can use to plug into your headphone jack and then attach other headphones to it. Headphone splitters make it so you can share music with more than one person at a time, with everyone using their own set of headphones.
I had the same problem, using the headphone socket and a headphone-to-phono cable from Maplins I am now able to listen to my TV through my hi-fi. Just stick the headphone jack in the TV and the red and white phono plugs in your hi-fi.