Control your lights, ceiling fans, and other fixtures from anywhere with the Kasa Smart Wi-Fi Light Switch HS200-BL. The smart switch replaces any standard light switch and connects to your home Wi-Fi in no time through the free Kasa app. Kasa also lets you manage connected fixtures with your smartphone or tablet, including setting schedules, timers and countdowns. For added convenience, you can use your voice to control when paired with Amazon Alexa, and Google assistant. Protocols supported: IEEE 802.11b/g/n; System requirement: Android 4.1 or higher iOS 9.0 or higher; Wireless type: 2.4GHz 1T1R.