It's that easy: Unpack clock of TFA, insert batteries, wait about 5 minutes and finished the automatic display (black text on a light gray background): Time in hours + minutes (4cm), seconds. Weekday in German, week of the year, complete date and room temperature (1.5 cm). The external dimensions of the clock: 19.5 cm x 19.5 cm and weight 377 g with batteries. On the back are 6 buttons: SET, alarm, up, down, wave, Snooz. Manual, which we did not need, because everything runs automatically in 6 languages. Weekdays in 7 languages possible two time interrupts.