The GoControl QuickStick Combo is a simple-to-use combination ZigBee & Z-Wave controller that plugs into your PC computer's USB port, allowing home automation control of ZigBee and Z-Wave devices using its free smartphone app. The QuickStick Combo devices comes with free PC-based software and a free downloadable app, allowing you to control ZigBee and Z-Wave products from Nortek Security & Control and other manufacturers. Remote control requires that the associated PC remains powered, turned on, and internet-connected. (If the connected PC reverts to sleep or hibernate mode, the remote control capabilities will not function).