Abstract:
A system of an internet interactive service and operating method thereof is disclosed. A network host is to transmit an audio watermark not only to connect with multiple devices but also to set the multiple devices as a specific group. The invention comprises following steps: connecting at least one multimedia device with the network host, transmitting the audio watermark which may comprise certification from the network host to the at least one multimedia device, the at least one multimedia device broadcasting the audio watermark, the at least one electronic device receiving the audio watermark and afterward transmitting the audio watermark or the certification to the network host, the network host recognizing the audio watermark or the certification and afterward setting the at least one multimedia device and the at least one electronic device as the specific group, transmitting at least one datum from the network host to the specific group.