This SnapFit RIC (Receiver In Canal) receiver wire has a red for right side end, is marked with a 50 to indicate 50dB and a 5 to indicate size 5.
Starkey hearing aid Receiver wire Size 5 Right 50dB Gain Angled SnapFit RIC
Starkey SnapFit 2.0 Length Size 3 Right 50dB 'M' Gain RIC Receiver
Oticon MiniFit C1 Hearing Aid Receiver Wire RIC Speaker - Choose Your Power/Size
Starkey Hearing Aid Case: Compatible with any brand hearing aid