If you are registered deaf or are a hearing aid user you qualify for a disabled persons railcard
ReSound LiNX 3D 5 61 Hearing Aid
The ReSound Linx 3D RIE 61 is the smallest receiver in the ear BTE hearing aid in its family. It is a fifth generation in hearing aid technology provided by ReSound. It comes standard with a push button. There is no volume control or telecoil. The '5' means it provides the basic range technology features from the Linx 3D family.
The Linx 3D RIE 61 comes with 4 different power receiver options: Low Power (LP), Medium Power (MP), High Power (HP) and Ultra Power (UP).