Please set the 4-digit code sent by Air BnB or Booking.com in the confirmation message
in the lock by turning the numbers and open the front flap.
(In some cases by pressing down the small black lever, depending on the key box).
Please enter the 4-digit code sent by Air BnB or Booking.com in the confirmation message in the input field and then press the ON button to confirm. The whole input should not take longer than 5 seconds.