Lenovo announced a batch of new tablets in its Yoga line on Thursday. One of them is unique: the Yoga Tablet 2 Pro is an Android tablet with a big 13-inch screen and a built-in projector.

The Yoga Tablet 2 Pro will cost at least $500 and will compete with the iPad Air. It’s an interesting size for a tablet, with a 13-inch screen running at 2560 x 1440 resolution. Like previous Yoga tablets, one side of the tab has a protruding berm — a “battery cylinder” — which can be used as a kickstand. On the Yoga Tablet 2 Pro, Lenovo has stuck an entire pico projector as well as a subwoofer in there. There have been a few phones with built-in pico projectors, but this is one of the first tablets, and it’s a mainstream product that will be widely available.

Pico projectors are an interesting technology that has been…