I have got one of these and just opened got 1st time and read the instructions. There is a funnel and little yellow cap or cup included but can't see in instructions what they are actually for! Any ideas?
I remember being confused about the two funnels - but it's just as japhrimel says, you have a choice of which one to use. The cup can be a cap for the bottle. It's not a great shape for cup feeding TBH. BTW it's very easy to replace all parts - just google them. Very handy when you cack-handedly end up snapping the valve
The little yellow 'cup' is actually a cover/cap/top for the teat of a bottle. It clips into place to cover the teat and keep it sterile (well - keep it clean, at any rate) if for example you put the bottle in a bag and take it out with you.
If I was cup feeding I would choose something else that was a better shape for tilting to a baby's mouth.
(Why they can't say what that yellow cap is in the instructions, I don't know. My first thought was '...am I to be downing shots while I BF?')