SkylinkHome SK-8 Wireless DIY 3-Way On Off Anywhere Lighting Home Automation Control Smart Wall Switch Set - No Neutral Wire Required

Add a wall switch wherever needed, without running additional wiring.
Replace your existing wall switch with the Skylink On/Off Switch receiver (WE-001)
IInstall without neutral wire Easy installation and DIY.
Mount Wireless Wall Switch (TB-318) anywhere you would like to control your light.
Ideal for use on stairwells, entrance ways, garages and bedrooms.
Operation range up to 500ft in an open area