Go to different locations to give presentations often? The BenQ GS1 might be interesting for you. This projector is no more than 14.6 centimeters wide and 6.5 centimeters high. This makes it very easy to bring along. Thanks to the internal battery, you can also use this projector outdoors. Don't worry about bringing along playback devices such as your laptop or Blu-ray player, since this projector has an integrated media player. Connect a USB flash drive, and project your saved presentations or videos on the screen. Feel that the sound coming from the integrated speakers isn't clear enough? You can use Bluetooth 4.0 to stream the audio to a Bluetooth speaker instead.