6 optional themes + 8 music: there are 6 different themes, lovers' confession, ocean, birthday, starry sky, Christmas, constellation, 8 kinds of built-in sleep aid music, also with 6 light effects, which you can choose according to your preferences and surroundings, and adjust the brightness and volume accordingly. Remote control and timer off: You can set 15/30 min to turn off automatically, there is never a need to turn off the light at midnight. If you want to keep the lighting on all night, you just need to connect the USB cable to the power supply. In addition, the musical night light projector is less noisy, it provides a sleeping environment, ideal for you and children. USB Rechargeable: Built-in rechargeable battery with USB cable. The charging time is about 2 hours. When fully charged, it can be used for several hours. In addition, a hanging strap is added to this version, the product can be hung anywhere you want. 360 Degree Rotation and Music Player: The bright projector