• Compatible : Cerushield filters are designed specifically for Phonak and Unitron SDS 4.0 receivers. Cerushield wax guards filter only compatible with Phonak and Unitron RIC hearing aids equipped with SDS 4.3 receivers, suitable for: Phonak Marvel, Phonak Paradise, Unitron Blu, Unitron Discover, Unitron Discover Next hearing aids
• Function : Phonak wax guards can prevent earwax, dust, oil, and moisture from clogging the hearing aids, prevent dust from entering the hearing aids, protect your hearing aids, and extend the lifespan of the hearing aids! Keep the hearing aids clean and your ears healthy
• Quantity of Satisfaction : Phonak wax guards filters kit has 10 packs, each pack containing 8 filters, for a total of 80 filters
• Easy to Use : Phonak hearing aid filter consumables are very simple to use, when replacing, just rotate the disc slightly, use the detachable end of the disc to remove the old filter, and then install the new filter on the hearing aid. Super fast
• Important Notice：If have perforated eardrum, please don't use the Wax Guards. Regularly changing these filters that you won't lose sound, providing consistent and reliable performance for your hearing aid