$29 1080p Projector and Lag Test (RCA RPJ280)

$29 1080p projector at Walmart. Decently Bright, decently loud, lens is only sharp(ish) in the middle, but okay for retro. Lag isn't stellar, but also isn't terrible. Currently $29, I've seen it recently as high as $65 in-store. If you have a use for it despite the weaknesses, it's recommended. I've bought another two--one more for me, and one for a gift.

Chapters:
00:00 intro
01:53 MiSTer Laggy test

Lag at the top is ~24-38ms, toward the bottom ~42-60ms

walmart link:
https://www.walmart.com/ip/RCA-1080P-LCD-Home-Theater-Projector-2-lb-Black-RPJ280/2079678080

Other details:
No bluetooth, but there is a 3.5mm headphone with a usb nearby that can power an adapter.

2x 3.5mm jacks, one is headphone, other is composite AV in.

3x hdmi, 2x standard on the side, 1x male on the back near a micro-usb for powering streaming sticks, etc.

Lens: big problem is getting the sides in focus with the middle is impossible. maybe using a real screen might allow the edges to be brought slightly forward to help(?)

trapezoid adjustment: avoid using it, it defocuses either the top or bottom. Instead tip the whole projector to fix trapezoid.

tripod mount: weird non-standard screw. I had an extra tripod plate and 'made' it fit.

both the usb and microSD slot are for media. I briefly tried a few common movie formats and couldn't find one it liked. Manual was unhelpful.