Almost all musical instruments are capable of producing damaging sound levels and almost all musicians are at risk of music induced hearing disorders (Tinnitus, hearing loss, pitch perception problems ). The ER-15 musicians ear plug is appropriate for most musical applications. The ER-25 was developed mainly for drummers and those who perform in amplified venues. The ER-9 provides 9dB of attenuation at 2KHz and 15dB at higher frequencies appropriate for ex solo practice. Attenuator buttons are often referred to as filters and are often interchangeable. ETY-Plugs are the inexpensive non customised ear plugs which gives a flat 20dB attenuation across frequencies. all the experienced team at ‘My Audiologist ‘ on 07 3446 5845 for an appointment to get custom ear plugs..