Auto Timer Function: Our sky projector has an auto timer function, you can set it to turn off after 2 hours or 4 hours. It is very convenient to use. 3-in-1 Galaxy Projector: Our ocean wave projector has different modes: starry sky mode and ocean wave mode, you can choose the mode you like. It creates a romantic and relaxing starry sky for your room. Bluetooth Speaker: Our star projector has a built-in Bluetooth speaker, you can play music and connect your phone via Bluetooth. Enjoy the starry sky and music together to create a wonderful atmosphere. Great Gift: Our LED star projector is a great gift for friends and family. It is a perfect gift for Christmas, birthdays, anniversaries, etc. Easy to Use: Our star night light projector is easy to use. Just turn it on and select the mode you want. It is perfect for home decoration, party decoration, bedroom decoration, etc.