Feature:1. FILTERING EARWAX: This professional hearing amplifier filter is water and oil resistant. The filter prevents earwax or water from getting trapped inside.2. FOR OTICON: This earwax filter will extend the life of your hearing amplifier and is especially suitable for Oticon hearing amplifier.3. PRESERVE HEARING AMPLIFIER: Preserves against ear wax and moisture to help maintain stable performance of the hearing amplifier. Ensures that the hearing amplifier will work consistently and properly for a long time.4. EASY TO INSTALL: This is an easy to install hearing amplifier earwax filter for seniors and other hearing impaired people.5. MATERIAL DURABILITY: This product does not contain any chemical harmful substances, using durable ABS material to ensure the durability of long term use, you can rest assured that the purchase and use.Specification:Item Type: Hearing Filter Wax GuardsMaterial: ABSSuitable Hearing Amplifier: Fit for Oticon.Package List:1 x Box of Hearing Amplifier Wax GuardsNote:1. Clean the cerumen baffle with a small brush from time to time2. Replace the cerumen baffle once every six months to a year according to the earwax condition.3. After installing the cerumen baffle, make sure it is firmly installed to avoid falling into the ear canal.