by Aeon Labs, Model Number: DSA22-ZWUS
At the touch of a button, this key FOB / necklace sends a wireless signal through walls and floors to your Smartified Home hub. The buttons can be programmed to do just about anything.
It can be worn as a necklace or attached to your keys to use as a garage door opener!
This key FOB / necklace can control anything in your Smartified Home!
Aeon Labs web site