Silencer Wireless NRR25dB Electronic Sound Suppression Hearing Protection Earbuds For Shooting. HEARING PROTECTIONS EARBUDS – Silencer Digital Earbuds are an in-the-ear-canal device that both amplifies low-level sounds so you can communicate on the range, and suppresses harmful sounds to protect your hearing. COMFORTABLE FIT – Walkers Silencer Compact In The Ear Buds won’t interfere with you or your gun and cone with Secure-Lock sizing fins (comes with 3 different sized countered fins and foam buds) provides a tight and a customized fit. EASY TO CONTROL – Integrated Omni directional microphones and full dynamic range speakers deliver a crisp clear sound; The speakers feature independent volume control and an off/on switch. DETAILS – Silencer Digital Ear Buds run on two #10 batteries (includes 4), and come with a removable lanyard and a carry case for easy transportation. Batteries can drain while in storage so users can take them out between uses. Also be sure to store ear buds in a low humidity environment. Battery draining faster in one ear over the other could be due to one directional sound causing one to work more than the other. The primary use for the silencer ear pieces is for suppressing loud sounds, not for carrying conversations as with using these as a hearing aid.