Physical KeysHigh precision physical key to work. Anyone can use it easily. Safe Disassembly Separate the high and low voltage voltage, which allows you to disassemble the switch safely. Voice Control The M5 smart wall switch supports voice control by working with Alexa, Google Home, Alice and Siri Shortcut. When you are busy, you can turn on the light with your voice. Adjustable Control IndicatorThe LED display on the button can be adjusted according to needs for different brightness. Safety CertificationSonoff M5 smart switch has been CE and UKCA certified. Safe performance is guaranteed. 3-button Wi Fi button connection switch - M5-3C-80 In order to remotely control three lighting fixtures or three connecting objects simultaneously, the provides a three button intelligent Wi Fi button switch M5-3C-80. Due to its three channels, this device is the solution you need to remotely control lighting simultaneously. You can use eWelink to turn them on and off through smartphone programming. This application can be used on both the App Store and Google Play Store. Due to the compatibility of the 3-button Wi Fi smart button switch M5-3C-80 with Alexa Amazon, Google Home, Alice, and Siri, you can also control the device through voice. As an intelligent switch, it also provides the advantage of creating intelligent scenes. For example, when you open the door, the light will automatically turn on. In addition to practicality, this 3-button Wi Fi smart button switch - M5-3C-80 also benefits from modern design. The circular tip and fashionable colors bring an elegant touch to your interior. In addition, you can easily install it in any location you want. This model also stands out due to its robustness, as it is composed of a PC V0 casing with the best impact resistance. Main features: Current output: 6 A (2 A/group) Output: 100-240V AC 50/60Hz Input: 100-240 VAC 50/60 Hz 5 Amps WiFi: IEEE 802/b/g/n 2.4GHz Maximum power: 1320 W (440 W/group) Dimensions: 86 x 71 x 41.5 mm