I bought this for our home but it turned out not to be what I needed.  Too late to return it so it sat in our garage for far too long.

The TP-Link Kasa Smart Wi-Fi 3-Way Dimmer Kit (KS230) allows you to control a single light fixture from two locations, like a hallway or stairway. It features smartphone control, voice commands, custom scheduling, and seamless fading, without requiring a central hub.
Key Specifications & Features
  • Full-Range Dimming: Adjust your lights from 1% to 100% via the Kasa Smart app, or set them to gently fade in and out.
  • Voice Control: Works with Amazon Alexa, Google Assistant, and Samsung SmartThings.
  • Away Mode: Randomly turns connected lights on and off to make your house appear occupied while you are away.
  • Bulb Compatibility: Supports incandescent bulbs up to 300W and dimmable LED bulbs up to 150W.
Installation Requirements
  • Neutral Wire Required: You must have a neutral wire in your wall box.
  • Wi-Fi: Requires a 2.4GHz Wi-Fi network.
  • Two Switches: The kit includes the main smart switch (dimmer) and a satellite switch (remote).
Hardware Versions (v1 vs v2)
Users agree that the wiring process differs depending on your version: 
  • Version 1: Traveler wires must be placed in a specific, correct order on the main unit for the switch to function.
  • Version 2: The traveler wires are non-polarized, meaning either traveler wire can connect to either terminal on the satellite switch, simplifying installation.