There are 100's like this one. For me, these are not features, but instead 4 (of many more) standard characteristics of video players:
This is some best features of this app.
This app also supports subtitle
Easy fast forward and back forward
You can play videos while browsing any other thing
There are 6 video playback features
Advice: Use a spell checker, please. You also have some grammatical errors. Grammarly could help you with both for example.
RE: FX Player - A media player for all