They will do exactly what you want them to do, amplify the sound of your headphones. If the purpose you are using them for is to do just that, then yes they work very well. Also, the better the brand and quality of the amplifier the better it will work.
well you have to have a wank
Pretty much all of them, as long as they use a headphone jack you should be set!
It helps quite a lot most people will find it works well for their needs.
No. Not only is it illegal to amplify a CB radio beyond the FCC permitted four watts, but stereo amplifiers and linear amplifiers work in very different ways.
The best way to make your droid mini headphone jack work is by taking it to an expert so that he/she can determine what is the problem with it and fix it.
It will if you have proffessioanal equipment to go with it ( speakers ) the amp has to be around the same wattage of the speaker or you will get distortion
Providing the headphone has a standard 3.5 mm stereo headphone plug it will work with Apple products.
Sounds a lot like the headphone jack is broken.
yep
Phone amplifiers are similar to hearing aids. The both enhance sounds to allow the listener better hearing.
A headphone amplifier is a type of audio amplifier. Instead of an amplifier that's designed to push through audio signals to speakers, a headphone amplifier is designed to work with headphones. These are common in devices such as MP3 players.
because the speakers aren't working