| 摘要 |
Embodiments of the present invention provide a presentation device that is simple to control for managing time and providing presentation instruction to a host device to make a presentation. In one embodiment, a presentation device is controlled by a user for providing presentation instruction to a host device to make a presentation. The presentation device comprises a timer button configured to be activated by a user to select an end time for a presentation, wherein each time the timer button is activated, a time interval between a current time and the end time is increased by a preset time increment. A timer module is configured to determine the time interval between the current time and the end time for the presentation as time passes; and a display configured to display the time interval between the current time and the end time for the presentation as time passes.
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