The children's slide projector is composed of multiple modes and is easy to use. You only need to pull the plastic cover to replace the slide, then insert the selected disc and rotate or adjust the disc to observe the projected image. It is recommended to use a darkroom with a projection distance of 50-150 cm to create clear and accurate images, suitable for children to grasp, easy to carry, and give children a sense of security at night! Use it to enjoy the warmth of your parents-child time. It is made of high-quality ABS materials, and the smooth edges will not harm children's small hands.This product has no Warranty and Guarantee