Etymotic's HD-15 High-Definition Electronic Earplugs are ideal for persons who operate some or most of the time around continuous loud noise such as power tools, machinery, trucks or construction equipment, and want both maximum protection from loud impact noise and natural hearing when no background noise is present.
HD-15 earplugs allow natural hearing until noise exceeds safe-exposure limits. Then there is automatic activation of 15-dB hearing protection plus maximum protection from sudden, loud impact noise. At the flip of a switch sound is amplified, improving distance detection up to five times for enhanced awareness of your surroundings.
ACCU-Technology: HD-15 electronic earplugs use Etymotic's ACCU-Technology with high-definition balanced-armature drivers, high-sensitivity microphones and proprietary wide-dynamic-range compression K-AMP signal processing. Designed for contractors, safety Inspectors, heavy machinery operators, warehouse personnel, mechanics, carpenters.