Meet the ZenBeam E2 tiny LED projector with automatic portrait mode (vertical projection).  The primary device contains a 6,000mAh built-in battery and may be powered continuously for up to 4 hours. 

It also supports wireless mirroring, allowing you to display huge screens from mobile devices like Android and iOS. The light source is an LED (lifespan of approximately 30,000 hours), the projection method is 0.2 DLP, the maximum resolution is 854 x 480 dots, the screen size ranges from 30 to 100 inches, the projection distance ranges from 0.76 to 2.54 mm, the maximum display colours are 16.7 million colours, and the maximum brightness ranges from 300 lumens. The interface consists of HDMI x 1, USB port for power supply x 1, 3.5mm stereo micro jack x 1, and a built-in 5W x 1 speaker.

The external measurements are 110mm wide, 39.5mm deep, 107mm tall, and weigh 0.41kg. The product has a two-year warranty. it trades desks for roughly 350 USD.