open-ear

Open-ear describes a style of headphones or earbuds designed to let ambient sound pass through rather than blocking it.

Unlike traditional earbuds that seal the ear canal, open-ear devices sit outside or alongside the ear, allowing wearers to stay aware of their surroundings while listening to audio.

This design appeals to runners, cyclists, and others who need to hear traffic or conversations.

I use open-ear headphones when jogging so I can hear approaching cars.