Item description for 3 Way Switch HS210 Needs Neutral Wire 2.4GHz Wi Fi Light Switch works with Alexa

Easy guided install: Neutral wire is required, standard wall plate size. No need to understand complex switch, wiring or master vs auxiliary switch configurations; The Kasa app guides you through easy step by step installation. For non-dimmable lights, 2.4GHz Wi-Fi connection required
3-way or single pole: Using it as 3-way or single pole switch to control the light from 1 or 2 locations to replace your traditional 3-way switch. Best for top and bottom of a staircase or from house to garage etc.
Control from anywhere & voice control: Monitor your light status. Turn electronics on and off from anywhere with your smartphone using the Kasa app, whether you are at home, in the office or on vacation. Enjoy the hands-free convenience of controlling the lights in your home with your voice via Alexa or Google Assistant
Scheduling: Use timer or countdown schedules to set your smart switch to autoically turn on and off while you're home or away. Enable ’away mode’ to randomly switch on and off to trick potential intruders
Trusted and reliable: Deed and developed in silicon valley, Kasa is trusted by over 4 million users. UL certified for safety use.
System Requirements :Android 5.0 or higher, 10 or higher

3 Way Switch HS210 Needs Neutral Wire 2.4GHz Wi Fi Light Switch works with Alexa