1. Introduction
Thank you for choosing the ziyoulang B033 Plus Tri-Fold Bluetooth Keyboard with Touchpad. This ultra-thin, portable keyboard is designed for seamless compatibility across multiple operating systems, including iOS, Android, and Windows, making it an ideal companion for your phone, tablet, or laptop. Its integrated touchpad enhances productivity, offering a complete input solution in a compact, foldable design.

Image: The B033 Plus keyboard in use with a tablet, showcasing its compact design and integrated touchpad.
2. Setup Instructions
2.1. Charging the Keyboard
Before initial use, ensure the keyboard is fully charged. Connect the provided charging cable to the keyboard's charging port and a USB power source. The charging indicator light will show the charging status.
2.2. Bluetooth Pairing
- Unfold the keyboard to power it on.
- Activate Bluetooth on your device (smartphone, tablet, or laptop).
- On your device, search for available Bluetooth devices. The keyboard should appear as "B033 Plus" or a similar identifier.
- Select the keyboard from the list to initiate pairing. Follow any on-screen prompts to complete the connection.
2.3. System Switching
The B033 Plus keyboard is compatible with multiple operating systems. To switch between modes, use the following key combinations:
- iOS: Press Fn + Q
- Android: Press Fn + W
- Windows: Press Fn + E

Image: Diagram illustrating the keyboard's compatibility with Windows, Android, and iOS operating systems, shown with various devices.
3. Operating Instructions
3.1. Basic Typing and Touchpad Use
Once connected, you can use the keyboard for typing as you would a standard keyboard. The integrated touchpad allows for cursor control and navigation, similar to a laptop touchpad.
3.2. Multimedia Functions
The keyboard features rich multimedia functions accessible via the Fn key. The specific combination depends on your operating system:
- For iOS/Android: Press Fn + the desired function key (e.g., F1-F12).
- For Windows: Press Fn + Shift + the desired function key.
Common functions include:
- Fn + Esc: Homepage
- Fn + F1: Search
- Fn + F2: Copy
- Fn + F3: Paste
- Fn + F4: Share
- Fn + F5: Previous Song
- Fn + F6: Pause/Play
- Fn + F7: Next Song
- Fn + F8: Silent
- Fn + F9: Volume Reduction
- Fn + F10: Volume Increase
- Fn + F12: Lock Screen

Image: Detailed diagram of the keyboard's multimedia function keys, showing their layout and purpose for iOS/Android (Fn + key) and Windows (Fn + Shift + key).
3.3. Sleep Mode and Wake Up
The keyboard will automatically enter sleep mode after 10 minutes of inactivity to conserve battery. To wake it up, simply press any key.
4. Maintenance
4.1. Cleaning
To clean the keyboard, gently wipe the surface with a soft, dry, lint-free cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the UV coating on the keycaps and the keyboard's finish.
4.2. Storage
When not in use, fold the keyboard to protect the keys and touchpad from dust and damage. The hidden folding structure with magnetic closure ensures it stays securely folded and compact for easy storage and transport. The keyboard's anti-slip foot pads also help maintain stability during use.

Image: Close-up images detailing practical upgrades: UV coating for key durability and anti-slip foot pads for stability.
4.3. Battery Care
To prolong battery life, avoid fully discharging the keyboard frequently. Charge it regularly and store it in a cool, dry place away from extreme temperatures.
5. Troubleshooting
5.1. Keyboard Not Connecting
- Ensure the keyboard is powered on and fully charged.
- Verify that Bluetooth is enabled on your device.
- Try turning the keyboard off and on again, then re-attempt pairing.
- Ensure the correct operating system mode (iOS, Android, Windows) is selected on the keyboard using Fn + Q/W/E.
- Remove the keyboard from your device's Bluetooth list and re-pair it.
5.2. Keys Not Responding
- Check the keyboard's battery level.
- Ensure the keyboard is properly connected via Bluetooth.
- If specific keys are not working, gently clean around them to remove any debris.
5.3. Touchpad Not Working
- Ensure the keyboard is in an operating system mode that supports touchpad input.
- Check if there is a function key combination to enable/disable the touchpad (refer to multimedia functions).
6. Specifications
| Feature | Specification |
|---|---|
| Model | B033 Plus |
| Keyboard Size (Open) | 304.5 x 97.95 x 8mm (one side) |
| Touchpad Size | 54.8 x 44.8mm |
| Keyboard Weight | 197.3g |
| Keyboard Layout | 63 keys |
| Working Distance | <15m |
| Lithium Battery Capacity | 140mAh |
| Bluetooth Version | 3.0 |
| Operating Voltage | 3.7V |
| Working Current (with touchpad) | <8.63mA |
| Working Current (with buttons) | <3mA |
| Standby Current | 0.25mA |
| Sleep Current | 60µA |
| Sleep Time | 10 minutes |
| Wake Up Method | Press any key |
| Keycup Material | ABS plastic |
| Interface Type | Bluetooth |
| Battery Included | Yes |
| Operation Style | Membrane |
| Language | English |
| Keyboard Standard | Tablet Keyboard |
| Application | Desktop, Laptop, Number, Tablet |
| Origin | Mainland China |
| Package Contents | 1 B033 Bluetooth keyboard, 1 charging cable, 1 manual |

Image: Product parameters table for the B033 Plus keyboard, including dimensions, weight, battery, and operational specifications.
7. User Tips
- Seamless Switching: Take full advantage of the multi-system compatibility by quickly switching between your iOS, Android, and Windows devices using the dedicated function keys.
- Travel-Friendly: The compact, foldable design makes this keyboard ideal for travel. Always fold it securely when not in use to protect the keys and touchpad.
- Multimedia Control: Utilize the multimedia function keys for quick access to common tasks like volume control, media playback, and screen locking, enhancing your productivity.
- Efficient Power Management: The keyboard's automatic sleep mode and quick wake-up feature help conserve battery life, ensuring it's ready when you need it.

Image: Image demonstrating the keyboard's portability, showing it folded and easily fitting into a bag alongside a tablet.
8. Warranty and Support
For any warranty claims, technical support, or inquiries regarding your ziyoulang B033 Plus keyboard, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.





