The WHIS Competition C-device can be used as a device for a second rider in a WHIS Competition (Pro) Set. This device has the letter ‘C’ in the display when switched on and is only suitable for the Competition Pro Set and the Competition Set with A/B software.

A number of WHIS Competition devices are equipped with the A/B software. After starting up the devices, the letters A and B appear, or the letters M and S (standard software).

The device with the letter A is for the instructor, the device with the letter B is for the first rider. The device with the letter C is equivalent to the B device and suitable for a second rider. The C device allows you to respond to the instructor and has a mute function.