Introduction
The Salange K2 is a versatile smart projector designed for both indoor and outdoor entertainment. It features Android 11.0, 4K video decoding support, automatic focus and keystone correction, a built-in battery for portability, and integrated Bluetooth speakers. Its compact design and flexible projection angle make it ideal for various viewing environments, from home theaters to outdoor movie nights.

The Salange K2 Projector, featuring Android 11.0 and 4K decoding, supports various streaming applications.
Specifications
| Feature | Detail |
|---|---|
| Brand Name | salange |
| Model | K2 |
| Category | Projectors, Entertainment Projector, Digital Projector, Home Theater Projector |
| System | ANDROID 11.0 |
| CPU | H713 / Quad-core ARM Cortex-A53 |
| GPU | Mali-G31 (supports OpenGL ES3.2, Vulkan 1.1, OpenCL2.0) |
| RAM | 1G |
| ROM | 8G |
| Optical Resolution | 1280x720dpi (Max support 4K video signal input) |
| Brightness | 200 Ansi Lumens (5000 Lumens, about 130-150 ANSI lumens according to ANSI test method) |
| Contrast Ratio | 1000:1-2000:1 |
| Projection Technology | LED |
| Light Source | Led Light |
| Light Life | More than 50000 hours |
| Projected Dimension | 50-150 inches |
| Projection Distance | 1.2-4m |
| Optimal Projection Distance | 1.68m |
| Screen Scale | 4:3/16:9 |
| Keystone Correction | Auto Correction (2s Auto Keystone) |
| Zoom | Focus (3s Auto Focus) |
| Image Flip | 230 degrees flip |
| Portable | Yes |
| Built-in Speaker | Yes, 2*5W (10W Hi-Fi Stereo Speakers with 2 Bass Boosters) |
| Fan Noise | <36 dB (test standard is 1 meter) |
| Battery | Built-in Li-ion battery (optional), up to 91 minutes continuous operation for movie playback, 4 hours for music playback. |
| Bluetooth-compatible | BT 5.2 |
| WIFI | 2.4G+5G+WiFi6 |
| Input/Output | 3.5mm Earphone Out, HDMI, USB |
| Power Source | DC (AC100-240V/50-60Hz) |
| Power (W) | 60W |
| Product Size | Diameter 100.8X103.5MM |
| Weight | 1.5kg |
| Lens | 3 pieces glass lens |
| Operation Mode | Button panel and remote control |
| Language | Support for multiple languages |
| Audio File Support | MP3/WMA/ACC |
| Image File Support | JPG, BMP, PNG (support image scaling) |
| Video File Support | Full-format decoding including HEVC/VP9/AVS2/AVC 4K@30fps and MPEG1/MPEG2/AV1 1080p/60fps decoding |
| Text Reading | TXT |
| Standard Accessory | User Manual, Power cord, Remote control |
| Certification | CE, FCC, RoHS |

Detailed product parameters and features.
Setup Guide
1. Unboxing and Package Contents
Carefully remove all components from the packaging. Ensure all standard accessories are present:
- Salange K2 Projector
- User Manual (this document)
- Power Cord
- Remote Control
- Power Adapter
- Selected Plug Type (e.g., EU Plug, US Plug, AU Plug, UK Plug)

Contents of the Salange K2 Projector package.
2. Power Connection
Connect the power adapter to the projector's DC input port. Plug the power cord into a suitable electrical outlet. The projector supports AC100-240V/50-60Hz input.

Rear view of the projector showing input ports.
3. Placement and Projection Angle
Place the projector on a stable surface. The K2 features a 230° flexible projection angle, allowing you to project onto walls or ceilings without needing a separate stand. Gently adjust the projector's body to achieve the desired projection location and angle.

The 230° flexible projection angle allows for versatile placement.
For optimal viewing, position the projector between 1.2m and 4m from the screen, with an optimal distance of 1.68m for a clear image. The projected image size can range from 50 to 150 inches.

Projection distance and screen size guide.
4. Initial Power On
The projector features a thermal touch screen for booting. Gently touch the power button on the projector's panel for quick response and easy startup.

Touch control boot design for easy power on.
5. Automatic Focus and Keystone Correction
The Salange K2 is equipped with 3-second auto focus and 2-second auto keystone correction. This means the projector will automatically adjust the image clarity and correct any skewed or trapezoidal images, providing a perfectly structured picture with every projection.

Automatic keystone correction ensures a perfectly rectangular image.

The projector features rapid auto focus and keystone correction.
Operating Instructions
1. Navigation and Control
The projector can be operated using its integrated button panel or the included Bluetooth remote control. The remote offers a mouse-like experience, allowing you to adjust settings conveniently without needing to be close to the projector.

Control the projector with the intuitive Bluetooth remote.
2. Android 11.0 Smart System
The Salange K2 runs on Android 11.0, providing access to a wide range of entertainment applications. You can download and use apps like Netflix, YouTube, Amazon Prime, and many more directly from the projector's interface.
Video demonstrating the Salange K2 projector's features, including its 230-degree rotation, ambient light effect, projection size, auto keystone, auto focus, Bluetooth speaker, battery life, wireless screen mirroring, Cortex-A53 chip, and Android 11.0 interface with Netflix and YouTube apps.
The projector is powered by a Quad-core ARM Cortex-A53 CPU (H713) and Mali-G31 GPU, ensuring smooth performance for streaming and applications. It comes with 1GB RAM and 8GB ROM.

Internal hardware specifications for the Salange K2 projector.
3. Connectivity
- WiFi: Supports 2.4G, 5G, and WiFi6 for high-speed dual-band internet access.
- Bluetooth: Features BT 5.2 for connecting external audio devices or using the projector as a standalone Bluetooth speaker.
- Input/Output Ports: Includes HDMI, USB, and 3.5mm Earphone Out for connecting various devices.
- Wireless Screen Sharing: Supports Airplay, Miracast, and DLNA protocols for easy screen mirroring from iPhone/Android smartphones or tablets.

High-speed dual-band WiFi and Bluetooth 5.2 for seamless connectivity.

Effortless screen sharing from mobile devices.
4. Audio Features
The K2 projector is equipped with 2x5W (10W total) Hi-Fi stereo speakers and 2 bass boosters, delivering immersive stereo sound without the need for external speakers. It can also function as a standalone Bluetooth 5.2 speaker.

Integrated 10W Hi-Fi stereo speakers with bass boosters.
5. Battery Operation (Optional)
For models with the optional built-in Li-ion battery, the projector offers continuous operation for approximately 91 minutes for movie playback and up to 4 hours for music playback after a full charge. This feature enhances portability for outdoor use.

Battery life for movie and music playback.
6. Ambient Light Feature
The K2 PTZ projector also functions as an ambient light, adding to the atmosphere of your viewing environment. It combines projection, Bluetooth speaker, and ambient lighting into one device.

The K2 projector also serves as an ambient light source.
7. Eye Protection
The projector utilizes diffuse reflection and low blue light technology, which is gentler on the eyes compared to direct light sources. This makes it suitable for extended viewing, including watching TV shows or online learning, without causing eye strain.

Diffuse reflection technology protects eyes during prolonged viewing.
Maintenance
1. Cleaning
- Lens: Use a soft, lint-free cloth specifically designed for optical lenses. Do not use abrasive cleaners or cloths that could scratch the lens.
- Exterior: Wipe the projector's exterior with a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water, then wipe dry. Avoid using harsh chemicals or solvents.
- Ventilation Ports: Ensure the ventilation ports are clear of dust and debris to prevent overheating. Use a soft brush or compressed air to gently clean them.
2. Storage
When not in use for extended periods, store the projector in a cool, dry place away from direct sunlight and extreme temperatures. If possible, use the original packaging or a protective case to prevent dust accumulation and physical damage.
Troubleshooting
1. No Power
- Ensure the power cord is securely connected to both the projector and the power outlet.
- Verify the power outlet is functioning correctly by plugging in another device.
- If using the built-in battery, ensure it is charged.
2. No Image or Blurry Image
- Check if the projector is powered on.
- Ensure the lens cap is removed.
- Allow the auto focus feature to complete its adjustment (approx. 3 seconds). If still blurry, try manually adjusting focus if available or reposition the projector.
- Verify the projection distance is within the recommended range (1.2-4m).
- Check the input source (HDMI, USB) is correctly selected and the external device is outputting a signal.
3. Skewed or Distorted Image
- Allow the auto keystone correction feature to complete its adjustment (approx. 2 seconds).
- Ensure the projector is placed on a level surface.
- If the issue persists, try repositioning the projector to be more directly aligned with the projection surface.
4. No Sound
- Check the volume settings on both the projector and the connected source device.
- Ensure no external headphones or speakers are connected to the 3.5mm audio out port if you intend to use the built-in speakers.
- If using Bluetooth speakers, ensure they are correctly paired and connected.
5. Connectivity Issues (WiFi/Bluetooth)
- WiFi: Ensure the projector is within range of your WiFi router. Re-enter the WiFi password if necessary. Try restarting both the projector and your router.
- Bluetooth: Ensure the Bluetooth device is in pairing mode and within range. Disconnect and re-pair the device.
- Screen Mirroring: Ensure your smartphone/tablet and the projector are on the same WiFi network. Check that the screen mirroring function is activated on both devices.
Warranty and Support
The Salange K2 Smart Projector comes with a standard manufacturer's warranty. Please refer to your purchase documentation for specific warranty terms and conditions, including duration and coverage details.
For technical support, troubleshooting assistance beyond this manual, or warranty claims, please contact the retailer or manufacturer directly. Keep your proof of purchase handy as it may be required for service.
Certifications: CE, FCC, RoHS.