Lighting

The Xtrfy M4 has a rather impressive set of RGB lighting. There are three zones in total: a strip which loops around the front, the scroll wheel, and the Xtrfy logo inside the mouse. There is a dedicated lighting button which allows one to cycle through a select number of pre-defined programs. These are: Rainbow (default), Single Color Breath, Single Color Permanent, Color Cycle, Single Color Pulse, Color Cycle Pulse, Rainbow Pulse, Color Cycle Revolve on Click, Single Color Flicker, and (of course) Off.

Furthermore, it is possible to adjust the brightness (by holding the lighting button and one of the side buttons simultaneously), speed (by holding the lighting button and the left button simultaneously), and color (for the Single Color modes, by holding the lighting button and the right button simultaneously). Resetting from the selection to the factory defaults is done by pressing the left, middle, and right clicks for five seconds, until a red light flashes. The M4 will then be reset to factory defaults.

Color accuracy and vibrancy is excellent throughout. Here's a short demonstration video of the available modes (please note that I'm not explicitly showing the "Color Cycle Revolve on Click" mode):