LAN and WLAN 4 channels 16 A switch actuator, Bluetooth. Power supply: 110-240 V AC, 50/60 Hz. 4 channels with 16 A each, totaling up to 40 A, single-phase. Power measurement per channel and total power, configurable switching thresholds. Sunrise and sunset timer, daily and weekly timer per channel. Voice control with Amazon Alexa and Google Home. Simultaneous use of WiFi and LAN, pairing new devices via Bluetooth. Shelly Cloud and API. For each Shelly device, you can configure in the app whether it should connect to the free Shelly Cloud or operate exclusively locally. Additionally, an API is available for all Shelly devices, allowing them to be controlled. Apps and voice control. The Shelly app is available for iOS and Android. Operation is via the app, the API, or locally through the control input. It is also possible to control Shelly devices using voice commands, with support for Amazon Alexa and Google Home.