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 ...

Amazon-owned Ring’s doorbells are a regular feature of residential streets, but a lot of us don’t live in homes where we have complete control over our own front door – apartment blocks, for example.

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Since the introduction of the first analog intercom systems 40 years ago, it would be easy to ...

【 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, ...

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 ...