Switchmate Easy Install Wireless Smart Light Switch - Toggle White, 2-pack

2-pack smart light switch made for existing light switches
Easily attaches to toggle light switches in one-second using built-in magnets
Free iOS and Android app lets you control the switch and set auto timers
Set to turns on lights automatically when you arrive
Switchmate knows when you're home and can turn lights on for you
Up to 1 year of battery life using replaceable AA batteries
Design made to fit seamlessly within your home décor