Requires neutral wire and 2.4GHz Wi-Fi connection to work. System requirement is Android 4.4+ or iOS 10.0+. Kasa smart’s in-wall outlet lets you control 2 plugged in devices from anywhere at the same time or individually. Turn your in wall outlet on or off, set schedules or scenes from anywhere with your smartphone using the Kasa app. Use simple voice commands with you in-wall smart outlets and any Alexa, Google Assistant or Microsoft Cortana. 2-year limited warranty.