This earpiece fitted with good quality Kevlar cabling and strain relief that is built to last. One of our best is the professional covert acoustic Kevlar noise isolating earpiece with HIGH IMPACT POLYCARBONATE MICROPHONE, also called PRO-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 headphone perfect for bodyguards and door supervisors. Sound quality and the clarity are exceptional. Highly recommended! 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. Suitable for down sleeve, under clothing operation or can be clipped near the lapel or to the vest. 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. Package included: Black wired earpiece + clear acoustic tube with earbud + spare earbud