MHL is a protocol for HDMI and for mobile devices. With MHL, for example, you can show content by plugging in various MHL capable devices into the LS100. Unlike most normal throw projectors, this UST Epson is likely to be table top, where it’s easy to plug in devices temporarily whether through HDMI or USB.
USB – Epson has three on this projector, one we’ll call a service port – which could be used to allow users to upgrade the LS100 if and when Epson should decide to add features with a firmware upgrade.
The others– can be used for content with its built in JPEG player – so take those photos, get them on a thumb drive, and just plug into the USB port.
And you can use one USB for remote mousing. That is typically a popular business/education projector feature, but has home applications as well.
Let’s say you are doing what I often do when writing these reviews (so I’m not spending too many hours staring at my MacBook’s LCD display. I use Apple TV to put the same content on the screen of my projector. Once up there, if I’m not typing, I can get up and use a remote mouse Most are well under $50, to navigate around the screen, turn pages, open programs and documents, all away from the keyboard, anywhere within range of the remote mouse – usually at least 25 feet.
Put that USB drive in one USB, with your photos on it, and run your vacation slideshow – to bore your friends – from anywhere in your room. They will thank you, no doubt.
Of course, this LS100 – with its business/education breeding, can easily double as a very serious business or classroom projector, where remote mousing is a great feature to have and use.
Or at home you could, for example, flip through your family photos, videos, or other things from your computer, from anywhere in the room!