Smart Gateway Hub M2 from Aqara is a controlling centre for more than 120 Aqara sensors and controllers and other infrared devices.It supports multiple gateways: Wi-Fi, Bluetooth, Zigbee 3.0 protocol.You can unite all of the sensors and appliances into a smarthome ecosystem, create automated scenarios or run them with voice commands.Due to integrated speaker, the M2 Hub can be used as an alarm or a doorbell.