BBrain BQ06A-0550900-M Manuel D'utilisation page 11

To hide buttons you don't want to use:
1. Press down on the top edge of the USB tumbler and open it halfway
2. Turn over the tumblers you don't want to use by pressing on their top edge
3. Close the USB tumbler to lock them back in place
1
press here
Next
Back
unlocked
Louder
Quieter
side view
2
tumble unwanted buttons away
Radio
Louder Music
Quieter
3
Close fully
side view
11