Cooldown items are used for lowering the cooldown time on active champion abilities. The ability cooldown is reduced for 10% of the total ability cooldown time on each cooldown item pickup. This item can be found on any arena in Quake Champions.

EXAMPLE
Nyx uses Ghost walk which has cooldown of 40s and then picks up 3 cooldown items which reduce her ability cooldown for 12 seconds (10% of 40 x 3), reducing it to 28s.