ZenPods Molded Earphones Kit allows you to make great molded earphones at home in a few minutes. The DIY mcustom headphones kit makes great jogging or gym earbuds. They are very comfortable and significantly reduce sound leakage so improve bass and midrange sound; more information on this is available from http://www.zenplugs.com. This also results in less irritation of people nearby as more sound stays in your ears. This also means you can play your music at lower volume, saving your batteries. In the video the earphones inventor Dr Toby Bateson describes the advantages and tells you how they work.