Tactical, True Wireless, Digital HearPRO Buds with Touch Control. The Hear Control on the XCOR allows you to hear what’s happening around you while protecting your hearing! The Digital Hearing Protection on the XCOR compresses loud noises rather than shuts them out/off. This allows you to hear all sounds around you, while the automatic compression protects against loud gunfire or other damaging noises over 85dB.