Sovboi VB2
Sovboi VB2 Projector User Manual
Model: VB2
Outdoor Projector 4K Supported 5G WiFi Bluetooth
1. Product Overview
The Sovboi VB2 Projector is a versatile and portable projector designed for various uses, from home theater to outdoor movie nights. It features Native 1080P resolution with 4K support, 5G WiFi, Bluetooth 5.2, and a self-developed Soi-Smart operating system for a personalized user experience.

Image 1.1: The Sovboi VB2 Projector showcasing its key features including 4K support, 5G WiFi, 50% zoom capability, and 4-point keystone correction.
2. Package Contents
Ensure all items listed below are present in your package:
- 1 x Sovboi VB2 1080P Projector
- 1 x Carrying Backpack
- 1 x Remote Control (Battery NOT Included)
- 1 x Power Cable
- 1 x HDMI Cable
- 1 x 3-in-1 AV Cable
- 1 x User Manual
- 1 x Cleaning Set
3. Product Features
3.1 Display and Performance
- Native 1080P Full HD & 4K Support: Delivers sharp, detailed images.
- 500 ANSI Lumens & 19000L Brightness: Provides clear visibility in various lighting conditions.
- 20000:1 Contrast Ratio: Ensures deep blacks and bright whites for a realistic image.
- Large Screen Projection: Supports optional screen sizes from 50" to 450".

Image 3.1: Visual comparison demonstrating the superior detail and contrast of the Sovboi VB2 projector's display.
3.2 Connectivity
- Dual-band 2.4G+5G WiFi: Ensures stable and fast wireless screen mirroring with reduced delay.
- Bidirectional Bluetooth 5.2: Connects to external speakers or acts as a Bluetooth speaker for your phone.
- Multiple Ports: Includes 2x USB, 2x HDMI, AV, and Audio output for diverse device connections.

Image 3.2: Illustration of the projector's 2.4G and 5G dual-band WiFi capability, emphasizing faster and more stable connections.

Image 3.3: Depiction of the projector's Bluetooth 5.2 capabilities, allowing connection to audio devices or functioning as a standalone Bluetooth speaker.
3.3 Smart System and Customization
- Soi-Smart System: Self-developed operating system for smooth navigation.
- Personalized Settings: Offers 2 UI themes, 24 local wallpapers, and supports custom wallpaper imports.

Image 3.4: The Soi-Smart Pro System interface, highlighting personalized settings, dual theme interfaces, and customizable wallpapers.
3.4 Correction and Zoom
- Digital ±50° 4D/4P Keystone Correction: Corrects distorted images from various projection angles (front, rear, ceiling mount).
- 50% Digital Zoom Function: Adjusts image size from 100% down to 50% via remote control without moving the projector.

Image 3.5: Visual explanation of the projector's 4D/4P keystone correction and digital zoom capabilities.
3.5 Durability and Longevity
- Dust-sealed Optical Engine: Prevents dust accumulation, reducing black spots and light leakage, ensuring consistent image quality.
- Long Lamp Life: Energy-saving LED light source with a lifespan of 120,000 hours.

Image 3.6: Demonstration of the dust-sealed optical engine's effectiveness in maintaining image clarity over time.
4. Setup Guide
4.1 Unpacking
Carefully remove all components from the packaging. Retain the original packaging for future storage or transport.
4.2 Placement
Position the projector on a stable, flat surface or mount it using a compatible ceiling or wall mount. Ensure adequate ventilation around the projector. The optimal projection distance will vary based on desired screen size. For example, approximately 8 feet for an 80-inch diagonal picture, or 10 feet for a 100-inch picture.
4.3 Power Connection
Connect the provided power cable to the projector's power input and then to a suitable power outlet (AC100-240V/50-60Hz).
4.4 Initial Power On
Press the power button on the projector or the remote control to turn on the device. The indicator light will illuminate.
4.5 Focus and Keystone Adjustment
Once powered on, adjust the focus ring on the projector lens until the image is clear. Use the digital keystone correction (±50° 4D/4P) via the remote control to square the image if it appears trapezoidal due to projection angle. The digital zoom function (100% to 50%) can be used to adjust the image size without moving the projector.
5. Operation Guide
5.1 Navigating the Soi-Smart System
The projector features a user-friendly Soi-Smart system. Use the remote control's directional buttons and 'OK' button to navigate through menus and select options. You can customize the UI themes and wallpapers from the settings menu.
5.2 Connecting Devices

Image 5.1: Overview of the projector's multiple device compatibility via various input ports.
- HDMI Connection: Connect devices like laptops, TV sticks, gaming consoles (PS5, Switch), or DVD players using an HDMI cable to the HDMI 1 or HDMI 2 port. Select the corresponding HDMI input source from the projector's menu.
- USB Connection: Insert a USB drive into the USB 1 or USB 2 port to play media files (AVI, MKV, MP4, MOV, MPG, MPEG, FLV, SWF, VOB, 3GP, 3GPP) or display documents (Excel, Word, PDF).
- AV Connection: Use the provided 3-in-1 AV cable to connect older devices with AV output.
- Audio Output: Connect external speakers or headphones via the 3.5mm headphone jack for enhanced audio.
5.3 Wireless Connectivity
- WiFi Screen Mirroring: Access the WiFi settings in the Soi-Smart system. Connect to your 2.4G or 5G wireless network. Follow the on-screen instructions to mirror your smartphone (iOS/Android) or PC screen wirelessly.
- Bluetooth Connection: Enable Bluetooth on the projector and your desired audio device (e.g., Bluetooth speaker). Pair the devices to stream audio from the projector to the external speaker. Alternatively, enable Bluetooth receiver mode on the projector to use its built-in speakers as a standalone Bluetooth speaker for your phone.
6. Maintenance
6.1 Cleaning the Lens
Gently wipe the projector lens with the provided cleaning cloth or a soft, lint-free cloth. Avoid using abrasive cleaners or excessive force, which can damage the lens coating.
6.2 Dust Prevention
The VB2 projector features a dust-sealed optical engine to minimize dust ingress. However, regular cleaning of the projector's exterior and ensuring it is used in a relatively clean environment will help maintain optimal performance and image quality over time.
7. Troubleshooting
7.1 No Image or Blurry Image
- Ensure the power cable is securely connected and the projector is turned on.
- Adjust the focus ring on the lens until the image is sharp.
- Check the input source selection to ensure it matches the connected device (e.g., HDMI 1, USB).
- Use keystone correction to adjust image shape if it appears distorted.
7.2 No Sound
- Check the volume settings on both the projector and the connected device.
- Ensure external speakers or headphones are properly connected if used.
- If using Bluetooth, ensure the projector is correctly paired with the audio device.
7.3 WiFi/Bluetooth Connectivity Issues
- Ensure the projector is within range of your WiFi router or Bluetooth device.
- Restart both the projector and the device you are trying to connect.
- Check for any interference from other wireless devices.
7.4 Fan Noise
The projector's fan operates to dissipate heat. While designed for efficient cooling, some fan noise is normal. If the noise seems excessive, ensure the projector has adequate ventilation and is not obstructed. Placing the projector further from the audience can also help mitigate perceived fan noise.
8. Technical Specifications
| Feature | Specification |
|---|---|
| Brand Name | Sovboi |
| Model Number | VB2 |
| Display Technology | 4'' LCD TFT Display |
| Native Resolution | 1920 x 1080P (Full HD) |
| Supported Resolution | 4K UHD |
| Brightness | 19000L / 500 ANSI Lumens |
| Contrast Ratio | 20000:1 |
| Display Color | 16.7M full color |
| Projection Size | 50" - 450" |
| Aspect Ratio | 4:3 / 16:9 |
| Keystone Correction | Digital ±50° 4D/4P |
| Zoom Function | 100% - 50% Digital Zoom |
| Projection Mode | Front-Desktop/Rear-Desktop/Front-Ceiling/Rear-Ceiling |
| Lamp Type | LED Lamp |
| Lamp Life | 120,000 Hrs |
| Connectivity | 2x HDMI, 2x USB, AV, 3.5mm Audio Out, 2.4G+5G WiFi, Bluetooth 5.2 |
| Built-in Speakers | Dual Surround Speakers (8W) |
| Power Supply | AC100-240V/50-60Hz |
| Product Dimensions | 7 x 7 x 3 inches |
| Item Weight | 3 pounds |
9. Warranty and Support
Sovboi provides a 3-year warranty for the VB2 Projector. This includes repair services and accessory replacement at no additional cost. For any problems or inquiries, please do not hesitate to contact Sovboi customer service. Our technicians have over ten years of experience and are available for 24/7 online service to offer professional support.
For support, please refer to the contact information provided in your product packaging or visit the official Sovboi website.
10. Important Notes
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