...
exec xautolock -time 3 -notify 60 -notifier "notify-send -u critical -t 60000 xautolock 'Screen will lock in 1 minute'" -locker "i3lock --dpms"
bindsym Mod4+q exec xautolock -locknow
...

...
bindsym Ctrl+Print exec "import -window root ~/Downloads/Screenshot$(date +%F%H:%M:%S).png"
...

1. find device

cbadescu@cbadescu-ubuntu64:~$ find /dev | grep -i jabra | grep snd /dev/snd/by-id/usb-GN_Audio_A_S_Jabra_EVOLVE_30_II_0002AD72CD6E07-00

1. find attributes