This Fakro ZRW7 electric wall mount keyboard active kit is compatible with model FVE/FVS. It comes with model a 5-year limited warranty. Dimensions: 6 inches x 6 inches Modern stylish appearance Easy to program Power supply 4 x 15 V, battery AAA Z-wave communications FAKRO Electric Active Kit ZRW7 Wall Mount Keyboard Compatible with FVE/FVS - 6-in x 6-in