This length is designed to be long enough to reach any position on the cap. Sensor wires are colour coded, blue for left, red for right, and black for references. In addition, each sensor will be individually labeled with the channel name it is connected to the EPOC Flex. The aim of this colour coding is simple, when troubleshooting you can quickly identify the colour and channel name in the software and quickly find the sensor on the cap. For example, if contact quality is low on channel LA this corresponds with the blue channel A wire.