The wall light switch MSS510 Upgrade Version can be controlled from anywhere (Internet Required) with your Meross app (iOS 9.0 or higher, Android 4.1 or higher). It allows you to turn the connected lights or fans on and off, and to set schedules or auto-off timer routine around your daily needs. Additionally, after pairing with Amazon Alexa or Google Home, you can simply control the connected devices with voice commands.</b> <br> <b>MSS510 Upgrade Version with smaller size, fit perfectly for US and Canada standard junction boxes, either 1 Gang or 2 Gang or 3 Gang or even 4 Gang. Single-Pole only, does not support 3 way switch. Neutral wire is required for the installation. The MT7682 chipset, is much better than normal chipsets, greatly enhance the wireless stablity and wifi signal connections. For very rare dropouts, it will reconnect itselfs. No hassles at all. Support sunrise and sunset setting. Moreover, with the clearly designed setup wizard in Meross app, the wiring process has never been easier. </b> <br> <b>Finally, MSS510 operates using Wi-Fi. You can simply connect it to your existing home Wi-Fi without the need to purchase an extra hub.</b> <br> <br><b>Specifications</b><br> <br> Input: 100-125V~, 60Hz, 15.0A <br> Output: 100-125V~, 60Hz <br> Button: On/Off Button <br> Antenna: One Internal Antenna <br> Wireless Standards: IEEE 802.11 b/g/n, 2.4GHz, 1T1R <br> Wireless Security: Support 64/128 bit WEP, WPA-PSK/WPA2-PSK <br> Package Contents: 2 x Smart Wi-Fi Wall Switch, Quick Installation Guide <br> System Requirements: iOS 8 or higher, Android 4.1 or higher, Existing Wi-Fi network <br> Environment: Operating Temperature: 0℃~40℃ (32℉~104℉) <br> Storage Temperature: -40℃~70℃ (-40℉~158℉) <br> Operating Humidity: 10%~90% non-condensing <br> Storage Humidity: 5%~90% non-condensing <br><b>Neutral wire is required for the installation.</b><br> Internet connection required.