This Bar Master Deluxe is a nifty little must have, for any professional or wannabe Bartender!! Find drink recipes by name, ingredient or even the glass type!The Bar Master Deluxe....- Holds more than 1,000 popular drink recipies- Lists every ingredient, with measurements for the perfect drink- Demonstrates specific techniques that will make you the ultimate Bartender!- Calculates your blood alcohol level based on weight of drinker and number of drinks consumed.- Also it shows you how to set up the perfect barThe Bar Master deluxe requires 2 AAA batteries