I would return that thing and get a Marcum VX-1i. The Marcum is far better than the Humminbird 35, at the same price point.
The zoom on the Humminbird just blows up the picture 2x. The Marcum uses a 5' bottom lock, which I prefer.
Marcum comes with a carry case, it's a $50 option on the Humminbird 35.
The Humminbird comes with a dual beam transducer, but I have a hard time using that feature, since I can't get the gain to find my jig and not washout the display with other interference in wide angle.