Job Interview Presentation

I have to do a 10 minute presentation on any subject for a banking position I have applied for, this role is based around sales and I have been given no other specifics. Am I to assume that this is a standard Powerpoint Presentation and not an oral presentation and also should I do a presentation based around my abilities/attributes or should I go for something that they may remember rather than the usual presentation's you see. Also being relatively new to presentation's, when someone suggests using visual aids, what exactly does this mean?