Lemorele Wireless HDMI Transmitter and Receiver for AR Glasses, Laptop; HDMI Wireless Extender Compatible with RayNeo, XREAL Air, Rokid Air, Thunderbird AR, GRAWOOA

Works fine for short distances
I use this to send an HDMI signal to a projector across a room and it works fine. There’s a bit of lag which is to be expected but it works fine for casual gaming but is probably best for 1080p movies or youtube videos.

Old design, transmitter hard to fit, requires extra power, no 3D support, uses WiFi channels
I’ve reviewed several units like this and they all seem to be based on a common chipset, with this being the oldest-seeming and least usable/functional of them all – see ASIN R3HI3OBW4JFHVZ for an example I rated highly. All of these have required power be provided to the receiver (RX), but all the others have run their transmitters (TX) off the power provided by most HDMI source (e.g. Bluray player, computer, etc). Not only does this NOT work without providing USB power to the TX, but the indicator light on the TX comes *ON* – so it acts like it works off HDMI power but I got no signal even 3 feet away without plugging in the USB power cable. I wouldn’t be half as upset if it simply didn’t power on when connected to HDMI power, but *ACTING* like it’s on is the worst of both worlds. On a related noted, this version of the TX is a candy-bar size/style dongle which didn’t fit on two different Blu-ray players I had around for testing – its wide profile and closeness to the HDMI connector interfered with other connections on both units so I had to use a short HDMI extended to connect it. All other versions I’ve tested have a short cable as part of the TX design to avoid this.This version of the chipset seems to only support 1080p and that did work, but it does NOT support 3D at all – which is a deal-killer for my application. Do be aware that the receiver creates a WiFi hotspot and uses that for connection to the transmitters. This allows use of your smartphone or other device to connect directly to the receiver, *BUT* it also means you may have interference with or from the WiFi networks around you. You should be able to connect to your own WiFi network and upgrade the firmware, but this version would ONLY show the 5GHz WiFi networks I have and NOT the isolated 2.4GHz I use for IoT devices and other networked devices I do NOT want accessing my home network. I wasn’t about to hook this thing to my actual live network so I couldn’t determine if newer firmware might be available – not that I’d expect it to fix the power issue on the TX. Likewise since the best and newest version of this chipset has no 3D support even on the latest firmware, I didn’t hold much hope for getting that fixed even if I’d been willing to setup a 5GHz hotspot just to try.When properly connected the receiver outputs a screen full of graphical and textual information to your display which goes away once a transmitter connects and provides a video signal. Of note here also is this RX has an HDMI socket on it rather than a short pigtail HDMI cable as the others have had – which could be useful in some circumstances but just required me to grab another short HDMI cable I’ve not needed with any of the other versions. In this older-seeming version, the on-screen display provides MUCH LESS information than newer versions – including the number of devices connected, WiFi state, etc, so again this version is the least functional and least useful of all those I’ve tested.As you’ve likely already realized, this is NOT a device I would recommend to anyone – get one of the up-to-date versions like the one I mentioned in the early part of this review.

Confusing mess
It lights up, and pretends to work, but doesn’t transmit?I see now, reading other reviews – it wants USB power on both ends – odd choice, but OK. In any event, without that, it *pretends* to be working – my frustration ran its course, and I gave up – not interested in investing any more time with it, especially after learning that it sets up a wifi hotspot – which I have some security concerns with.At the end of the day, I have several other models of wireless HDMI extenders that work very nicely – so this pair, at $130, which doesn’t *really* offer anything more useful than any of the others, even to someone using VR – just doesn’t make the cut.