Review on 📽️ Unicima WiFi Video Projector - Native 1080P Support, 4D Keystone Correction, 7500L Full HD Portable Mini Movie Projector for Home & Outdoor - iOS/Android/Laptop Compatible by Edward Freeland

Base unit only has vertical keystone correction - and poor customer support who just told me "yes it is". I have 2 other projectors that have 4D Keystone Correction which allows you to either edit the offset of each of the 4 corners or there is vertical and horizontal adjustment with numbers from negative to positive. It only has vertical adjustment. Brightness isn't terrible, but not as bright as another projector I received this week that's listed at 6000 lux. Revain should actually require an ANSI lumen measurement for all projectors. The 1080p picture looks sharp and has good colors, but you have to turn off the lights to get a good picture.