I am dissatisfied with the quality of the product. Out of the four projectors I purchased, all of them displayed equally poor image quality: the picture was blurry and caused significant eye discomfort, making it impossible to watch. This is not an isolated incident or a single defective unit; all four projectors had the same issue. Initially, the seller agreed to a return, but later changed the product information on their site and refused to honor the initial agreement. Ultimately, the issue was resolved thanks to the platform's support team. I feel it is important to inform other potential buyers about the low quality of this product.