The Archer's Ear may be that one last piece of critical equipment that means the difference between bringing home a trophy and coming home empty-handed. Created to amplify high-frequency sounds with 48 dB of power, it increases normal hearing by up to 7 times. High-definition, digital signal processing streams consistent, clear, sound enhancement. Three different sized soft, silicon ear buds for low-noise situations can be worn for all-day comfort. The foam ear plugs (included) provide a Noise Reduction Rating of 22dB and are recommended for loud environments.