Description: Timing button: lightly press the timing button to set the timer, the timer duration is 30 minutes, and it will automatically shut down after 30 minutes. The marquee rotating dynamic effect combined with the starry sky top brings a three-dimensional viewing experience. Built-in battery, USB charging, Charging time: 2-3 hours, the high-quality lamp beads are not dazzling, they can be shot from a long distance and can be viewed up close. Bluetooth version: 5.0, Bluetooth effective distance: 4-10 meters, which can play built-in music or connect to a mobile phone to play music.(The charging model has no music function) Gifts for families and children: The starry sky projection night light is suitable for birthdays, parties, weddings, room decoration, children's day, Christmas, and anniversary gifts. It creates a wonderful starry atmosphere and helps stimulate children's curiosity, imagination, creativity. Specification: Material: ABS Size Chart: Size: 110x110x150mm/4.33x4.33x5.91inch Package Includes: 1 Piece Projection Lamp 1 Piece USB Cable 1 Piece Manual 3 Pieces Dynamic Slides 3 Piece Static Slides Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!