👉 A topophone, also known as a high-pitched phone or a speakerphone, is a device that allows individuals to communicate with other individuals via voice. It has a built-in microphone and can be used for various purposes such as making calls, sending messages, and playing music. Users can attach headphones to the top of the device, which helps improve sound quality. The topophone typically consists of a speakerphone housing, a microphone, and a battery. The speakerphone is usually mounted on the
