Dual portable DVD player – 3 kids

Hi fabulous CM’s,

We are wanting to purchase portable DVD players for our three children before we go on a driving holiday, but are tossing up whether to get dual screen or individual DVD players….
I just wanted to ask other mums whether a child sitting in the middle seat would have clear visibility of a screen, if we were to purchase a dual screen DVD player?
Also, would a hand held DVD player be suitable for a 2.5 yr old & 3.5 yr old?
Would be interested to hear your thoughts!
Thanks 🙂