Earbuds are better for exercise as they're discreet and fit more securely than a bulkier on/over-ear design. As they shoot music straight into your ear canal, they tend to sound more direct too. Generally speaking, 'headphones' refer to on-ear and over-ear designs whose earpads nestle on or around your https://www.youtube.com/watch?v=yq-E92r-iOE