This is our acoustic tube ear mould (earmould) twin pack, designed to fit in your ear enabling sound to be transmitted from your 2 way radio or TETRA terminal (these fit all the acoustic headsets that we supply)

This is the twin pack so you get 1 x LL (Large Left) and 1 x LR (Large Right)

Size Guide - Medium is by far the most common size, Small is for if you have noticeably small ears, Large if you noticeably bigger ears (like me!)  

As it does not totally block the ear like the earbuds, this enables essential hearing of what is going on around you as well as those essential radio transmissions!