If you are registered deaf or are a hearing aid user you qualify for a disabled persons railcard
Bernafon Zerena 5 Mini RITE Hearing Aid
The Bernafon Zerena is a small behind the ear hearing aid that is made for iPhone and includes fantastic features.
Zerena 5 uses Bernafon's Dynamic Amplication Control to continuously recognise speech and noise elements to a signal. Also Binaural Dynamic Noise Management that provides a highly sensitive directionality and ultra fast noise reduction system.
With its min RITE set up, inside the dome is a minifit speaker that is designed to fit perfectly inside your ear canal.