QUALITY ASSURANCE : Our star projector has many patents and is a leader in the industry. Each of our products will undergo strict testing before delivery, and we have strong after-sales capabilities that others can't match. If you have any questions, please feel free to contact us INSTRUCTIONS : The use of our star projector is very simple. Plug in the power supply, turn on the switch, and you can enjoy the beautiful star projection. Children and the elderly can operate independently. Maybe the elderly will be a little curious and longing for the starry sky. FUNCTION ADJUSTMENT : This product has three buttons, A, B, C. A: Adjust the light, B: Adjust the brightness, C: Rotary switch. Remember to plug it in when using it. BEST GIFT CHOICE : Children's imagination comes from life. Using a star projector can help them see the starry sky, ocean, animals, constellations, etc., and improve children's knowledge. This is the most beautiful gift. The projector can be set to automatically rotate and present the picture. Makes us feel very realistic. EIGHT PROJECTIONS : A variety of patterns can be switched at will, which greatly satisfies the curiosity of children. The number of films of this projector is currently more than that of most styles on the market, and the cost performance is extremely high.