Genuine receivers as supplied by Phonak Unitron. These items cannot be returned once opened as they are medical devices. If you are unsure of your requirements please don`t hesitate in contacting me. They are provided in presealed packaging as per manufacturer. 

These are 2 pin receivers and Suitable for Phonak, Unitron and Hansaton hearing aids. 

Returns will only be accepted if the item is unopened and unused. These items are medical grade and as such cannot be reused or resold

The picture indicates the various sizes (lengths) available (0-3)