Switchmate Toggle Switch

It is the worlds first smart light switch that instantly snaps over your existing light switches, all without having to replace or rewire a light switch or light bulb. Taking 1 minute to install, it turns lights on automatically when you arrive home or enter rooms, responds to voice commands, and has multiple timers for total smart lighting control. Download the free companion app to control on your phone or control at the wall switch or with the Google Assistant & Alexa. Size: W 2.5″ x D 0.75″ x H 4.25″.