Feature WAX FILTERING: This professional hearing amplifier filter is water and oil resistant. The filter prevents earwax or water from being trapped inside. FOR OTICON: This wax protection filter will extend the life of your hearing amplifier and is especially suitable for the Oticon hearing amplifier. MAINTAIN YOUR HEARING AMPLIFIER: Protects against earwax and moisture to help maintain stable performance of the hearing amplifier. Ensures that the hearing amplifier will work stably and properly for a long time. EASY TO INSTALL: This is an easy to install hearing amplifier wax filter for seniors and other hearing impaired people. MATERIAL DURABILITY: This product does not contain any harmful chemicals, using high-strength ABS material to ensure the durability of long-term use, you can rest assured that the purchase and use. Specification: Item Type: Earwax Shields with Hearing Filter Material: ABS Suitable hearing amplifier: fits Oticon Package List: 1 x Box of Hearing Amplifier Wax Covers note : Occasionally clean the earwax septum with a small brush2. Replace the earwax insert once every six months to a year, depending on the condition of the earwax. 3. After installing the baffle, make sure it is firmly attached to avoid falling into the ear canal. Remove the old earwax septum with mesh remover, clean the mouth of the corner.2. Use the other end of the mesh remover to snap the earwax septum in place, install it in the corner hole and try to gently check by hand if it is firm and not loose.