Resideo LLC

Ademco Inc.

Liangju Li

Kun Yang

Zida Wang

A system includes a doorbell at an exterior of a premises comprising a doorbell housing, a button, a doorbell wireless transceiver, and a doorbell speaker and doorbell microphone coupled to the doorbell wireless transceiver. The system also includes a smoke detector at an interior of the premises comprising a smoke detector housing, a smoke detector wireless transceiver, and a smoke detector speaker and smoke detector microphone coupled to the smoke detector wireless transceiver. The smoke detector wireless transceiver is configured to be in two-way audio communication with the doorbell wireless transceiver. The two-way audio communication includes transmitting audio from the doorbell microphone to the smoke detector speaker via the wireless transceivers. The two-way audio communication also includes transmitting audio from the smoke detector microphone to the doorbell speaker via the wireless transceivers. In some systems, a second smoke detector is included and in some systems, a control panel is included.

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Shanghai, China

Liangju Li