The Crystal touch/remote range are available in 1, 2 & 3 gangs and come in either "1 way" or "2way/intermediate".
To use the touch switches 2 way/Intermediate you need to purchase all 2way/intermediate touch switches and follow the wiring diagram.
Please note: The 2 way cannot be used over 2 separate floors must be used on the same floor.
All 2 Way models do not work with conventional rocker mechanical switches as they are not touch models. (NOTE: Touch Dimmers are NOT available in 2way/Intermediate).