The maximum distance at which the product can operate depends mainly on the available Wi-Fi connection. The device uses 2.4 GHz Wi-Fi, which generally has a range of about 30-50 metres indoors, but can vary considerably depending on the environmental conditions and obstacles present. There is no specific information on the maximum distance for communication between the doorbell and the indoor chime, but in general, the Wi-Fi connection must be stable to ensure optimal operation.