"A dim, low-resolution toy projector suitable only for casual use in very dark rooms."
The marketing claim of a 'maximum of 170 inches' translates to a device that lacks the brightness and resolution to produce a coherent, watchable image at even a third of that size.
This product is for someone seeking a cheap, disposable screen for a child's bedroom to play cartoons in a completely dark space. Its value is entirely in its low price, not its performance.
Anyone expecting a clear picture for movie nights, gaming, or use in a room with any ambient light should avoid this. Users seeking the convenience of wireless video streaming will be disappointed by the wired-only connection.