The ClickShare CB series supports both 50 Hz and 60 Hz Frequency for Power Systems.
From Firmware V02.21 onwards, it's possible to manually adjust the Power line frequency1 on the Camera page to match the Frequency of your Power System.
This can be done in the ClickShare Configurator > Conference Bar > Video page.
By default, this will be 60 Hz (NTSC) and can be adjusted to 50 Hz (PAL) when you're using the ClickShare CB device with a 50 Hz Power System. Mismatches might lead to camera images that are flickering.
Prior to Firmware V02.21, the Power line frequency is always 60 Hz2.
[1] This setting is not reset when downgrading to an older Firmware version!
[2] Unless this ClickShare CB device was downgraded. In this case, it will have the value prior to the downgrade.
