KENWOOD Radio Earpiece (PRO HD Heavy Duty Kevlar Headset with High Impact Polycarbonate Microphone) This earpiece fitted with high quality Kevlar cabling and strain relief that is built to last. This earpiece also suitable for down sleeve, under clothing operation or can be clipped near the lapel or to the vest. This fit system works very well for security officers and door supervisors, although it does take a bit of practice to get the hang of - it really is worth the effort. Sound quality and the clarity are exceptional. Highly recommended! The earpiece features a large high impact polycarbonate microphone/PTT housing that can be found easily in the most difficult circumstances. If you are serious about your job then this type of earpieces should satisfy your craving for the best possible quality earphones you can get your hands on. One of our best is the professional covert acoustic Kevlar noise isolating earpiece, also called HD. This type of earpiece is designed to seal in your ear canal and comes with large high impact polycarbonate microphone / PTT which means you can listen and send messages uninterrupted by the noise around you. This earpiece is robustly built, with well made Kevlar cables and good strain relief to protect the cabling from damage. The acoustic tube and most parts can be detached and replaced in case they get damaged - a very useful feature when you are working in a night clubs. The design makes this type of earpiece perfect for bodyguards and door supervisors.