| 摘要 |
A broadcasting device includes a video and audio transmitter, several video and audio receivers to wirelessly receive signals from the video and audio transmitter, and a remote control; the video and audio transmitter is connected to a multimedia broadcasting device such as computers, MP3, MP4, CD and DVD players; the video and audio receivers are each connected to a respective second broadcasting device such as televisions, overhead projectors, stereos, and speakers so that video and audio information contained in the multimedia broadcasting device can be transmitted through the transmitter, received with the receivers, and broadcasted through the second broadcasting devices connected to the receivers; the remote control is used to control the video and audio transmitter and the broadcasting devices connected to the receivers.
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