Although there are various sizes and styles in the shower cabins, most of the core features are the same across the ranges. These features are listed below....but please check the feature list on individual models, to confirm any variation.
Overhead shower
Hand shower [riser rail or fixed position]
Body/Body Jets
Thermostatic or Mixer Shower Valve
Some will also have:-
Foot Massager
Extractor fan
Drop down or molded seat, or stool
Interior lighting
FM Radio
CD/MP3 input
Ozone sterilisation
Control panel