The Fibaro Smart Wall Plug with USB Port for Z-Wave is a smart switch with power metering for electrical devices. The Fibaro Wall Plug has been meticulously designed, down to every last detail. Let it enchant you with its sophisticated rounded design and high-end quality hardware. This elegantly designed wall plug functions as a power switch, energy monitor, and USB charger. It can also measure the amount of power being drawn and comes with built-in overload protection. The outer crystal LED ring changes color according to the amount of power being used. The mobile app provides more details and can switch the connected device on or off. And any detected use of energy can prompt the system to send a notification to your smartphone. Whether it is regular activities or unusual situations, you' re covered whenever you need to control the status of an electrical device. The Fibaro Wall Plug is a simple and convenient solution. This smart plug is for Z-Wave systems. It is not Apple HomeKit compatible