Genuine Phonak & Unitron SDS 4.0 Receiver Wires still in original packaging. Compatible with Phonak & Unitron hearing aids launched approx 2019 to September 2024. SDS 4.0 Receiver Wires have 3 pin connectors and use Cerushield Wax Guards (also available from us) - available while stock lasts. Please check this is the right wire as the latest 5.0 version is also available, it will still work as the 3-pins are the same but wax filters used will be different. Please message if you have any questions as I am a hearing care professional. NB- one of the 2 available packs has been opened mistakingly, still brand new and untouched.
