Both Babeland Photo and Babeland Photo Pro are capable of printing using the AirPrint protocol. AirPrint is an easy-to-use, wireless technology developed by Apple, allowing for the ability to print directly from iPad apps.
On Apple's website, you can find a list of printers that natively support AirPrint printing. Models like the Canon Selphy series have been popular in the photo booth industry, allowing for beautiful 4x6 prints with minimal setup.
For photo booth users who are looking to use professional-grade printers (frequently known as "dye-sub" printers), the complication often comes that these prints do not support AirPrint technology (they really should, but they don't)! Many users have opted to use either hardware or software intermediaries, which allow for converting a non-AirPrint printer into an AirPrint printer.