SureFit 2 receivers are compatible with GN ReSound ENYA, LiNX², Linx3D, LiNX Quattro & Key receiver-in-canal hearing aids, they are in various sizes and power levels.

To identify the receiver you require each receiver is coloured coded and features printed numbers on the side.

GN ReSound have recently changed the design on their SF2 Receivers and these are now called  SF2 C.

Receiver wires do become worn. Due to the amount of time you can wear your hearing aid changing your receiver wire can improve performance because of wear an tear.

Receivers on average  last up to 6-12 months depending on use. 

If your audio quality reduces over time  changing your wax filters and replacing you receiver wire can improve performace.