6 optional themes 8 music: there are 6 different themes, lovers’ confession, ocean, birthday, starry sky, Christmas, constellation, built-in 8 kinds of sleep aid music, also with 6 light effects, which you can choose according to your preference and environment, and adjust the brightness and volume accordingly. Remote control and timer off: you can set 15/30 mins to turn off automatically, never need to turn off the light at midnight. If you want the light to stay on all night, you just need to connect the USB cable to the power supply. In addition, the music night light projector is less noisy, providing an ideal sleeping environment for you and the kids. USB Rechargeable: Built-in rechargeable battery with USB cable. Charging time is about 2 hours. When fully charged, it can be used for several hours. Also, a hanging strap is added to this version, the product can be hung anywhere you like. 360 degree rotation and music player: The light projector can rotate automatically, and you