Imagine having the 5 greatest casino games handy whenever you feel the urge to play. The next time you find yourself waiting for anything, waiting for lunch, trapped in traffic, appointments, whenever you have a moment to spare, you'll be glad you've got these Five Great Games at your fingertips. You can bet and make decisions just as if you were inside a casino. Easy to use and a great way to relax. Requires 2 "AA" batteries.