Huishi (witseer)J1 4K ultra-high definition household projector products are positioned for home use. Considering the use scene of the family, the top surface of the product is covered with cloth, which increases the touch feeling of the product through cloth and brings close and comfortable touch marks to users. The heat dissipation plates on both sides are metal oxidized and quick-release design, which is convenient for disassembly and flushing. A viewing atmosphere light is added to the side to relieve the eye stimulation caused by the visual light and shade contrast when the user turns off the light to watch the movie.