The logical alternative to circumaural (over the ear) and supra-aural (on top of the ear) headsets is an in-ear design. These are basically ear buds attached to a thin head frame that also accommodates a traditional microphone. Their purpose is obvious and simple, which is to allow more freedom and comfort than you might experience wearing a traditional headset.
But that’s no easy task and there’s far more to consider than comfort. In-ear headsets should protect your hearing, provide audio clarity and performance as good as the highest-end ANR headset and they need to be rugged. Like any headset, they need to have a simple and compact control module.