A smartphone can be a laser pointer when you're showing a PowerPoint presentation in a meeting. Open your presentation in Presenter view on your mobile device to use it as a remote control. Advance through the slides with a touch, and emphasize interesting things with the laser pointer.
Watch this video for a brief demonstration:
As demonstrated in the video, this feature requires that your smartphone have a gyroscope. But if you don't have an Office 365 subscription or don’t have a gyroscope, you can still use the laser pointer by pressing and holding on the slide area and moving your finger around the slide.
To connect your smartphone to a projector, use an HDMI adapter or connect wirelessly by using AirPlay, ChromeCast, or Miracast.