The lens shift feature on a device allows the optical lens to be physically shifted up and down (vertical) or left and right (horizontal).
37% have it
17. has a socket for a 3.5 mm audio jack
With a standard mini jack socket, you can use the device with most headphones.
54% have it
18. zoom ratio
A projector zoom allows you to increase or decrease the size of the projected image without moving the projector. The most common zoom ratio among today's projectors is 1.2, which means you can vary the image size by 20% by simply adjusting the zoom lens.
Epson PowerLite Pro Cinema 6030UB: 2.1:1
19. power consumption operation
How much power the device consumes when it's switched on.
JVC DLA-X30: 0.8W
20. displays 3D
The device can display 3D images without the need for wearing special glasses. The display's special construction allows viewers to get a sense of an image's depth by tailoring its position to fit the user's perspective.
21% have it
21. USB ports
With more USB ports, you are able to connect more devices.
Optoma UHD51A: 4
22. has a HDMI output
Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.