For a long time displaying and playing-out your audio has been difficult and expensive.
But display technology has leapt into the spotlight, and the undisputed Queen of Displays is Apple's iPad2.
Now you can have luscious, colour touch-screens and audio play out in your exhibition, and you can redesign your material without any external help or cost, from your own office! And all at costs well below bespoke hardware and software.
Everyone benefits.

The iPad enclosure protects the unit from damage and theft.
They can be mounted on:
tables and counters
walls
floor stands

and on adjustable floor stands which can be easily positioned alongside the material they describe.
Audio playout can use:
the iPad's own internal speaker
headphones attached to the iPad
speakers attached to the iPad
Call for full details; stock expected February.