A single earpiece which clips over the top of your ear.
More comfortable for prolonged use than an earpiece which fits inside your ear.
Similar to the one above, but better quality. Popular with security guards etc. This model also has a central cord, so can be worn on either the left or right ear.
Fitted with either a 2.5mm or 3.5mm right-angle mono jackplug.
*** ONLY 2.5mm version currently available ***