The Unemployed Philosophers Guild Jewish Sound Wallet - Plays HAVA Nagila Every Time You Open It Whether for babka of challah, you're going to need dough. Plays "Hava Nagila" each time you open it. Includes one (1) bifold wallet. Measures 4 inches by 3.25 inches folded. Includes a replaceable battery. Made of light and durable Tyvek, and includes a silencer if you've hava-ed enough. Laugh all the way to the bank with UPG's incredible sonic wallet! From the Unemployed Philosophers Guild. Don't worry. We are employed, just not as philosophers. We're a small, Brooklyn based company specializing in gifts for the sophisticated gift giver. For whatever you need, we have presents of mind.