Split / product(earphones)

when using the earphones, the inconvenience thing we always felt is that in case one side of earphones is out of order, they throw out the whole earphones even though one of them works. The improved idea can be suggested as below. The simple idea is that the earphones can be manufactured with two separable parts, i.e., cable part and earphone part. In any cases, by dismantling the damaged part and replacing it with the new one, the earphones can be re-used again without throwing out the whole parts. it can be replaced with the new one so that people can use the earphones without problem.This simple idea can protect the environment as well.