Ticket Automat by bugulma
It's the ticket automat for bus, S-Bahn and U-Bahn. Sometimes the bus stops haven't it, in this case you can buy ticket in the bus driver. So you should enter the number of the zone or the number of your stop (stops list is on the automat). It's possible to economize a little bit if to buy 4-journey ticket. You enter number of the stop/zone and then push a blue button "4-mitfahrkarte".