Control from Anywhere Turn electronics on or off from Anywhere with Your Smartphone using the Kasa Smart app; System Requirements: Android 4.1 or higher, iOS 9.0 or higherVoice Control Works with Alexa, Google Assistant and MicroSoft Cortana Supported devices for a hands Free ExperienceGentle Off Tailor Your Lighting to fade on with a click of the switch or a double click to gently fade off the lights while Your child drifts off to SleepFull Lighting Solution Replace Standard switches with the Smart Wi Fi Light Switch, dim bupounds with the Smart Wi Fi Light Switch, Dimmer or use the Smart Wi Fi Light Switch. Kasa app guides through Installation; Operating Wi Fi frequency: 2. 4 GigaHertzPeace of Mind with Quality and Design Kasa Smart Wi Fi Light Switches are UL certified ensuring safety and reliability with the user Experience