Item Type: HearingAmplifier FilterMaterial: PlasticFunction: Prevent foreign objects such as earwax dust from blocking the speaker of the hearingamplifier. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Waterproof Performance: Hearing amplifier guard is both waterproof and oil resistant, which can effectively prevent foreign objects such as earwax and dust from clogging the speakers. 2Prevent Objects Enter: The wax filters can prevent foreign objects from entering the hearing amplifier and affecting the normal operation of the hearing amplifier. 3Prolonged Service Life: Hearing amplifier can prevent earwax from accumulating in the earpieces, extending the service life of the hearing amplifiers. 4Durability: The hearing amplifier filter is made of wear resistant materials to ensure long term durability with guaranteed quality. 5Easy Installation: The wax guard does not take much effort and time to ensure that the elderly or other groups can operate with confidence and quickly.