Full size headphones have big cups that go all the way around and over your ears.
In-ear headphones seal in your ear canals and have the highest isolation from outside noise of any type.
Earpad headphones may be a pad or a cup and, at least partially, rest on your ears.
Closed headphones have an acoustic seal that isolates you from outside noise.
Headsets let you talk and listen, they have a microphone and one or two earpieces.
Noise-cancelling headphones contain a battery and some internal electronics that stop noise from reaching your ears.
Headphones and headsets that get their signal without a wire.
High-end headphones that are wired for balanced operation.
Very common small earphones that nest in the outer part of your ear, and do not block outside noise.
Headphones with a headband that loops around the back of your neck.
Headphones that clip to your ears.