This is how the buttons work on your MitID audio code reader

Video - How the buttons work on your MitID audio code reader (4:59)
How the buttons work on your MitID audio code reader (PDF - from page 5)

1. Show and read the one-time password (only red button)
   Press the ‘red button’ which is placed on the lower right. You can feel the button has a slight bump in the surface. You need the one-time password in order to approve with MitID.
2. Read the one-time password again (red button + 0)
   Press the ‘red button’ on the lower right and at the same time press ‘0’, which is placed on the left of the ‘red button’.
3. Turn up the volume (red button + 9) 
   Press the ‘red button’ on the lower right and at the same time press ‘9’, which is placed right above the ‘red button’.
4. Turn down the volume (red button + 7)
   Press the ‘red button’ on the lower right and at the same time press ‘7’, which is placed first in the third row from above.
5. Turn down the reading speed (red button + 4)
   Press the ‘red button’ on the lower right and at the same time press ‘4’, which is placed first in the second row from above.
6. Turn up the reading speed (red button + 6)
   Press the ‘red button’ on the lower right and at the same time press ‘6’, which is placed last in the second row from above.
7. Change language – choose between Danish and English (red button + 1)
   Press the ‘red button’ on the lower right and at the same time press ‘1’, which is placed first in the top row.
8. Turn off the audio code reader (only red button)
   The audio code reader is automatically turned off after 20 seconds without activity. You can also turn it off by pressing the ‘red button’ at the bottom of the audio code reader.
9. Read the serial number (red button + 5)
   Press the ‘red button’ on the lower right and at the same time press ‘5’, which is placed in the middle of the second row from the top.

You will need the serial number when activating your audio code reader.