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 Guards Material: ABS Suitable Hearing Amplifier: Fit for Oticon . Package List: 1 x Box of Hearing Amplifier Wax Guards Note: 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.