- Appealing headline
- Product icons
- 1 or 2 Video intros
- Audio success story or power kick
- detailed description of content + questions answered
- success stories
- easy to find pay now buttons
- detailed product features - e-book, audio formats - support - money back guarantee
- Test drive
- detailed description of every product component - what's in the e-book, what's in the audios, etc.
I have about 10 features here and it is reasonable to think that each ads a bit of credibility.
A simple way to look at it is to consider that each element ads 10% to the page's selling power.
So, while removing one of the elements might not be dramatic, it might still reduce the power of a sales page.