Introduction
The Joytey Constellations Planetarium Galaxy Stars Projector is designed to transform any room into a captivating cosmic environment. This versatile device combines realistic celestial projections with a Bluetooth speaker and sound-activated features, offering an immersive experience for relaxation, education, or entertainment. It features 30-in-1 projection capabilities, including 12 constellations, 15 planets, and 7 nebulae, alongside a galaxy light and starlight flickering with music. The projector offers 10 different color changes for the nebula and adjustable speeds for moving effects.

Image: The Joytey Constellations Planetarium Galaxy Stars Projector, showcasing its design, remote control, and smartphone connectivity for music playback.
What's in the Box
Please check the package contents to ensure all items are present:
- 1 x Constellations Planetarium Solar System Galaxy Stars Projector
- 1 x Remote Control (requires 3 AAA batteries, not included)
- 1 x USB-C Cable
- 1 x User Manual
- 4 x Planetarium Discs
Setup
- Power Connection: Connect the provided USB-C cable to the projector's DC power input port (5V/2A). Connect the other end to a compatible 5V/2A USB power adapter (not included). Note: A 5V/1A charger is insufficient to power the device.
- Remote Control Batteries: Open the battery compartment on the back of the remote control and insert 3 AAA batteries, ensuring correct polarity. Close the compartment securely.
- Insert Projection Disc: Gently remove the protective cap from the top of the projector. Select one of the included planetarium discs and carefully insert it into the designated slot.
- Placement: Place the projector on a stable, flat surface in a completely dark environment for optimal projection quality. Ensure there are no obstructions between the projector and the wall or ceiling where the images will be displayed. The adjustable base bracket allows for tilting up to 45 degrees to direct the projection.

Image: Detailed diagram illustrating the projector's control buttons, input ports (DC 5V/2A), and the remote signal receiving position. It also shows the battery requirements for the remote control.
Operating Instructions
Basic Operation
- Power On/Off: Press the power button on the projector or the remote control to turn the device on or off.
- Projection Disc Change: To change the projected image, gently pull out the current disc and insert a new one.
- Focus Adjustment: Use the focus wheel on the side of the projector to sharpen the projected image.
Projection Settings
- Constellations/Stars: Use the dedicated button on the projector or remote to toggle the constellation and star projection on/off.
- Nebula/Galaxy Light: Use the 'MODE' button on the projector or remote to cycle through different nebula colors and effects. The projector offers 10 color backgrounds.
- Brightness Adjustment: Adjust the brightness of the projection using the remote control (15%, 40%, 70%, 100%).
- Movement Speed: Control the moving speed of the starlight nebula (3 speed levels) via the remote control.

Image: The projector displaying a combination of 12 constellations and 20 high-definition space projections on a ceiling, demonstrating its visual capabilities.

Image: An illustration of the projector's ability to display 10 different nebula colors, along with adjustable speeds and brightness levels.
Bluetooth Speaker & Sound Features
- Bluetooth Connection: Turn on the projector. On your smartphone or audio device, search for Bluetooth device name "BL-12S" and connect. You can now play music through the projector's built-in high-fidelity speaker.
- Sound Pickup Function: The projector features a sound pickup function that allows the stars, constellations, and nebulae to flicker and change rhythmically with the music played via Bluetooth.
- U-Disk Playback: Insert a U-disk (USB flash drive) into the USB port to play stored music directly from the drive.

Image: A visual representation of the Bluetooth music and sound pickup rhythm function, showing how the light effects synchronize with music.
Timer Function
- Auto Shut-off Timer: Use the remote control to set an automatic shut-off timer for 2 hours or 4 hours. This feature is ideal for use as a night light or for falling asleep to the projections.

Image: Key features of the projector, including the 4-hour auto-off timer, 1-hour/2-hour timing options, up to 45-degree tilt bracket, and adjustable nebula movement speed.
Maintenance
- Keep the projector clean by wiping it with a soft, dry cloth.
- Avoid using abrasive cleaners or solvents.
- Ensure the projection lens and disc slot are free from dust and debris for clear images.
- Store the projector in a cool, dry place when not in use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Projector does not turn on. |
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| Image is blurry. |
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| Remote control not working. |
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| Bluetooth connection issues. |
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Specifications
| Feature | Detail |
|---|---|
| Model Name | Constellations Planetarium Galaxy Star Projector |
| Brand | Joytey |
| Product Dimensions | 6.53"D x 6.69"W x 5.51"H |
| Item Weight | 1.7 Pounds |
| Power Source | Corded Electric (5V/2A required) |
| Light Source Type | LED |
| Number of Light Sources | 3 |
| Connectivity Technology | Bluetooth, USB |
| Controller Type | Push Button, Remote Control, Voice Control |
| Projection Patterns | 12 Constellations, 15 Planets, 7 Nebulae, Galaxy Light, Solar System |
| Nebula Colors | 10 (Blue, pink, green, purple, multicolour) |
| Timer Function | 2H/4H Auto Shut-Off |
| Special Features | Adjustable Height, Color Changing, Plug In, Star Projector, Timer, Bluetooth Speaker, Sound Activated (Pickup Function) |
| Material | Acrylonitrile Butadiene Styrene |
| Remote Control Batteries | 3 AAA batteries (not included) |
Warranty & Support
For any product inquiries, technical support, or warranty claims, please contact Joytey customer service. Refer to the contact information provided on the product packaging or visit the official Joytey website for assistance.
Manufacturer: Joytey





