Rare Earths in Headphones

Check out our posts on social media for an example of recycling rare earths below. The picture shows the magnets from an older pair of headphones compared with newer ones. The old ones are from over 10 years ago and have a ferrite magnet, which is big, bulky, and produces fairly bad sound. The new ones are much better. The red circle marks the NdFeB (Neodymium) magnet in the modern headphones, which weighs about 0.65 grams.