Lutron Maestro Companion Multi-Location Dimmer | Not for Standalone Use | MA-R-WH, White, 4.5Lx2.5Wx2.5H - Wall Dimmer Switches - Amazon.com
Lutron Maestro LED+ Dimmer Switch Kit with Companion Switch, 150W LED/3-Way or Multi-Location, White (MACL-153M-RHW-WH) MACL-153M-RHW-WH - The Home Depot
Maestro Lutron Digital Dimmer Companion Switch - Gray