On the projection there are black dots (video garbage)

NATER 1080p & OPERATION 4K: The HY320 projector is an improved version of the Hy300 model with a native 1080p resolution and support for 4K. Provides clear and vivid images on any clean white wall, without the need to use canvas. Thanks to the brightness to 10,000 lumens and the contrast coefficient of 10,000: 1, immerse yourself in exciting movie adventures from the bedroom to the living room. In addition, advanced diffusion technology image reflection provides a comfortable view even during long-term use, which makes it ideal for children's rooms.

Rotating 180 ° Projector and a 150-inch screen screen: Our 4K projector can transform every room into a cinema. Thanks to the unique design with a 180-degree rotation, you can define a cinema screen wherever you want. Enjoy movies not only on the wall, but also lying in bed, designing movies on the ceiling. Thanks to the innovative projection ratio of 1.1: 1, you can enjoy a screen with a diagonal of 150 inches even in tight spaces. Experience larger, sharper and brighter images like never before.

Automatic trapezoidal correction and versatile projector: Thanks to the automatic vertical trapezoidal correction, the mini projector quickly captures full HD and will present flawless images. In combination with manual focusing technology, it provides perfect image quality in a few seconds, regardless of the projection angle. Equipped with HD ports, USB and 3.5mm, offers trouble-free compatibility with Fire TV Stick, laptops, PS5 and other devices.

Android 11, WiFi 6 & BT5.0: MINI projector 4K has advanced two-band WiFi 6 (2.4G and 5G) for seamless and free from jamming watching. With the Android 11 operating system, HY320 offers an intuitive user interface and smooth, intelligent use experience - without the need for additional tv. BT5.0 supports connections with headphones or speakers, allowing you to immerse yourself in the atmosphere of music and films (Bluetooth does not connect to phones and computers).