Size:Size 2 Left NEW 1-pack RECEIVER-SPEAKER by Phonak. Fits RIC (Receiver-In-
Canal) hearing aids made by Phonak and Unitron in the last seven years
including the Audeo, Yes, Naida CRT, and all other Unitron and Phonak RIC
hearing aids. These are the traditional straight receivers and not the curved
speakers. Over time, these receiver/speakers can become impacted with wax and
need to be replaced. If you have any doubt, please consult a licensed hearing
aid professional as these speakers are not refundable. Thank you for your
patronage.