This is my third one. We take a whole beef and cut it the way you want, and we cut hogs too. Sennheiser has had no interest in making an armature earphone because the technology was never meant to create music but to create narrow frequency bands in hearing-aids. Gotta try. but . I hate having to get a large size and think that I had to buy so. The website was helpful to address a minor question, but the installation instructions that come with the rack is clear. Although they appear to sit on the ears, they’re actually designed so that your ears fit into the aperture, which works very well for my ears, but I would imagine that it could be bothersome and possibly uncomfortable for those who have larger ears. Its not made of the best stuff, but for light use in a utility space its perfect. The battery life on these things are ridiculous.