Yes, a projector can be used outdoors. The only thing to be kept in mind is the fact that there is no projector which will be able to display content in bright daylight. Therefore your best bet to project any content will be when it is darker outside. A mini projector is easy to use and completely portable and that the audio of the projector is loud enough. So, as to lighten up the load and hassle to carry an alternative exterior speaker to enhance the sound. It is much easier to carry around the screen of a projector than of a TV screen itself.