The set’s dual-device capability lets you connect to two devices simultaneously, without having to fuss with Bluetooth settings. Generally speaking, 'headphones' refer to on-ear and over-ear designs whose earpads nestle on or around your ears, while 'earbuds' cover in-ear models whose eartips bury into your ear canal. Sennheiser Accentum Plus: https://www.youtube.com/watch?v=yq-E92r-iOE