How do bone conduction headphones work?

As unique as they are niche, bone conduction headphones may seem like gimmicks for the uninitiated, especially considering they rarely sound as good as the best true wireless earbuds on the market. But, they have their particular uses; every model among the best bone conduction headphones are designed to solve a particular problem, whether it's for runners, swimmers, or triathletes. You'll even find models to make life in the office easier.