Works with Alexa for voice control (Alexa device sold separately).CONTROL FROM ANYWHERE - Turn electronics on or off from anywhere with your smartphone using the Kasa app (Compatible w/ Android & iOS)VOICE CONTROL - Works with Amazon Alexa, Google Assistant and Microsoft Cortana supported devices for a hands-free experienceCOLOR CHANGING - Choose from multiple colours and set the mood to match any moment (colour adjustable through Kasa smart phone app)KASA SCENES & SCHEDULES - Schedule the Smart Bulb to automatically turn on and off when awayNOTE: Requires a secured 2.4 GHz Wi-Fi network connection