This Wi-Fi Enabled Switch Allows For Single Pole Setup, or Use Multiple Wall Switches For 3- and 4- Way Functionality, Providing Unparalleled Flexibility Anywhere In Your Home. Control, Monitor, and Schedule Your Home'S Switch-Operated Interior and Exterior Lighting, Switch-Controlled Fireplaces, Ceiling Fans and More to Turn On and Off From Anywhere. Conveniently Operate Wall Switch With Voice Control Through Siri®, Alexa, and The Google Assistant.120VAC, Neutral Wire Required