Overview: Let’s face it. Sometimes it’s impossible to replace a standard switch with a new Insteon switch module. The Insteon switch modules are deep and you have to jam it in the box to fix. This Wireless Switch is a quick painless solution and works very well with the Insteon Hub and pairing it with plug-in modules. It also has a rechargeable battery via micro USB.
Quick Start Guide http://cache-m2.smarthome.com/manuals/2342-x42qs.pdf