Jamba! was a premium-rate monthly SMS mobile phone content provider, based in Berlin, Germany. In China, Brazil, and the company's English-speaking markets—currently Australia, Canada, Ireland, New Zealand, the United Kingdom and the United States—the company operates under the name Jamster.Jamba!'s main line of business is the creation and marketing of ringtones for mobile phones. It is perhaps best known for the Sweety the Chick, Crazy Frog and Schnuffel characters.