HHomeBackground Color:He
LiBeNeodymium Main PageBlack White GrayBCNOFNe
NaMgNeodymium Pictures PageAlSiPSClAr
KCaNeodymium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr

Headphone magnets.
An example of the element Neodymium

Sample Image
Neodymium Headphone magnets
Headphone magnets.
There's nothing special about these mini-headphones except that their package uses the word NEODYMIUM in very prominent letters right on the front. It's not every day you see a rare earth being promoted in quite such flashy letters, but they are quite right to do so: It is neodymium-iron-boron magnets that make very small, very light, very good-sounding headphones possible. (To make a speaker sound good you need a strong magnet, and to make it light you need a small magnet. Neodymium-iron-boron magnets are the strongest available for a given weight, which is why they are used in essentially all headphones these days.)
Source: San Jose Airport
Contributor: San Jose Airport
Acquired: 29 May, 2003
Price: $16
Size: 0.2"
Purity: <35%
The Elements book Mad Science book Periodic Table Poster  Click here to buy a book, photographic periodic table poster, card deck, or 3D print based on the images you see here!