GunSport�Pro High-Definition Electronic Earplugs are designed for gun sport enthusiasts in the field or at the range where both blast protection and clear communication are desired. GSP electronic earplugs use Etymotic Research�s ACCU-Technology with high-definition balanced armature drivers, high sensitivity microphones and wide dynamic range compression K�AMP signal processing. GSP�15 Electronic Earplugs are for gun sport enthusiasts who need protection from firearm blasts, but also need protection from loud continuous noise from vehicles, machinery or repeated gunfire from nearby shooters. Improves distance detection up to 5X. GSP�15 Electronic Earplugs allow natural hearing when no background noise is present and gradually protect from loud continuous noise from vehicles, machinery or gunfire from nearby shooters. At the flip of a switch sound is amplified, improving distance detection up to five times for enhanced awareness. Clear, high-definition sound quality 2 Modes of blast protection: Natural Hearing Mode � Allows natural hearing, provides 15 dB of automatic hearing protection when noise exceeds safe levels, & protects from blasts Enhanced Hearing Mode � Amplifies up to 5X & protects from sudden blasts Blast protection is active in both modes � LO (natural) & HI (enhanced) Ideal for: Gun sport enthusiasts Professional shooters Hunters Guides & instructors Package includes: 1 pair of GSP15 earplugs Assortment of ACCU-Fit eartips Neck cord Filter tool ACCU-Filters Cleaning tool Size 312 batteries Zipper pouch User manual