Several characteristics of speakers.Audio equipment for meeting room

　　(1) Mobile phone speakers and tablet PC speakers have two binding posts (two leads). When a single speaker is used, the two pins are not divided into positive and negative polarities. When multiple speakers are used at the same time, the two pins have the same polarity. point.

　　(2) Mobile phone speakers and tablet PC speakers have aluminum film, transparent film, and paper film. Its color is usually black, but also white.

　　(3) Mobile phone speakers Tablet computer speakers have several categories such as round, square and oval.

　　(4) There is a magnet on the back of the speaker diaphragm of the mobile phone speaker and tablet computer. When the external magnetic speaker touches the magnet with a metal screwdriver, it will feel the existence of magnetism; there is no such feeling in the internal magnetic speaker, but there is a magnet inside the shell.

　　(5) Mobile phone speakers and tablet PC speakers are installed on the machine panel or in the movement.

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