TP-Link 2-Pack 3.3-in White In-Line Cord Light Switch

Smart Switch Kit makes it easy to replace 3-way switches common in living rooms, stairways, and halls
Control your lights from anywhere with your smartphone using the Kasa app (iOS, Android)
No Hub required, Connects to standard home Wi-Fi networks
Check on lights remotely on your phone, create schedules, set timers and countdowns
Easy to Locate, built-in indicator illuminates to locate the switch button at night
Standard 2-year warranty, 24/7 unlimited technical support by phone (1-866-225-8139)