Feature:1. Good Waterproof Performance: Hearing aid guard is both waterproof and oil resistant, which can effectively prevent foreign objects such as earwax and dust from clogging the speakers.2. Prevent Objects Enter: The wax filters can prevent foreign objects from entering the hearing aid and affecting the normal operation of the hearing aid.3. Prolonged Service Life: Hearing aids can prevent earwax from accumulating in the earpieces, extending the service life of the hearing aids.4. Superior Durability: The hearing aid filter is made of high quality materials to ensure long term durability with guaranteed quality.5. Easy Installation: HF3 wax guard does not take much effort and time to ensure that the elderly or other groups can operate with confidence and quickly.Specification:Item Type: Hearing Aid FilterMaterial: PlasticFunction: Prevent foreign objects such as earwax dust from blocking the speaker of the hearing aid.Package List:1 x box of Hearing Aid FilterNote:If there is no net lifter or it has been lost, you can install it by hand and be careful not to drop it.