Home security firm Ring has unveiled a new device that links to home audio intercom systems and enables people who live in flats to answer a door buzzer from anywhere via their smartphone. The ...

Far from being relics of the past, modern home intercom systems are feature-rich communications devices. After researching several popular options and interviewing home security and tech experts, our ...

Most people probably remember a school intercom. Each morning speakers in the classroom shared news of assemblies, sports events and deadlines for returning forms — all dispassionately read by the ...

The circuit provides a simple illustration of a door phone intercom system having a two-way communication using the features of LM386 amplifier. Intercom – short for intercommunication, is an ...

Facility security has always been a priority at Congregation Beth Jacob in Redwood City, Calif., especially for their preschool and religious school. In the spring of 2013, Congregation Beth Jacob’s ...

【 Functional quality upgrade】DESHUN intercom system DS-236 adopts all-metal body design, better durability, audio connection line with 4 core high strength aluminum foil shielding line, ...