1. Introduction
This manual provides instructions for the setup, operation, maintenance, and troubleshooting of your Plugable Foldable Bluetooth Keyboard (Model: BT-KEY3XL). This full-size, portable keyboard is designed for multi-device compatibility across various operating systems.

2. Package Contents
Verify that all items are present in your package:
- Plugable Foldable Bluetooth Keyboard (BT-KEY3XL)
- Protective Case / Stand
- USB Charging Cable
- Quick Start Guide

Video: Unboxing the Plugable Full-Size Keyboard, demonstrating the contents and initial presentation.
3. Setup
3.1 Charging the Keyboard
Before first use, fully charge the keyboard using the provided USB cable. Connect the small end of the USB cable to the keyboard's charging port and the other end to a USB power source (e.g., computer USB port, USB wall adapter).

3.2 Folding and Unfolding
The keyboard features a foldable design for portability. To unfold, gently extend the side panels until they lock into place, forming a full-size keyboard. To fold, collapse the side panels inward.

3.3 Bluetooth Pairing
The keyboard supports pairing with iOS, Android, Mac, and Windows devices.
- Power On: Unfold the keyboard to power it on. The power indicator light will illuminate.
- Enter Pairing Mode: Press the Fn key simultaneously with the C key. The Bluetooth indicator light will flash, indicating it is in pairing mode.
- Select OS Mode: For optimal key mapping, press Fn + Q for Android, Fn + W for Windows, or Fn + E for iOS/macOS.
- Enable Bluetooth on Device: On your device (phone, tablet, computer), go to Bluetooth settings and ensure Bluetooth is enabled.
- Select Keyboard: Look for "Plugable Keyboard" or "BT-KEY3XL" in the list of available devices and select it to pair.
- Confirm Pairing: If prompted, enter the displayed code on the Plugable keyboard and press Enter. The Bluetooth indicator light will stop flashing and remain solid once successfully paired.

Video: A demonstration of the Plugable Foldable Bluetooth Keyboard's features and connectivity with tablets.
4. Operating Instructions
4.1 Key Functions and Shortcuts
The keyboard features a standard QWERTY layout with additional function keys. Some keys have different functions depending on the selected operating system mode (Fn+Q/W/E).
- Fn + Top Row Keys (F1-F12): Access multimedia controls and system functions.
- Navigation Keys (Home, End, Page Up/Down): Accessed via Fn + Arrow keys on some systems.
- Edit Keys (Copy, Cut, Paste, Select All): Dedicated keys or Fn combinations available.
- OS-Specific Keys: Some keys are mapped differently for iOS, Android, and Windows. Refer to your device's operating system for specific key behaviors.
4.2 Using the Protective Case as a Stand
The included protective case can be folded into a stand to hold your smartphone or tablet, providing an ergonomic setup for typing.
- Unfold the case according to the diagrams provided in the quick start guide or on the product packaging.
- Ensure the magnetic clasps secure the stand in its triangular format.
- Place your device in the designated slot on the stand. The stand supports both landscape and portrait orientations.

Video: Demonstrating the Plugable Foldable Keyboard's ability to type on any device, highlighting its portability and versatility.
5. Maintenance
5.1 Cleaning
To clean the keyboard, gently wipe the keys and surface with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials that could damage the finish or key legends.
5.2 Battery Care
The keyboard uses a USB-rechargeable Li-Ion battery. To prolong battery life:
- Avoid fully discharging the battery frequently.
- Store the keyboard in a cool, dry place when not in use for extended periods.
- Recharge the battery periodically if stored for a long time to prevent deep discharge.
6. Troubleshooting
6.1 Keyboard Not Pairing
- Ensure the keyboard is charged and powered on.
- Confirm the keyboard is in pairing mode (Bluetooth indicator flashing after pressing Fn+C).
- Check that Bluetooth is enabled on your device and it is discoverable.
- Try forgetting the device on your host system's Bluetooth settings and re-pairing.
- Ensure the correct OS mode (Fn+Q/W/E) is selected for your device.
6.2 Keys Not Responding or Dropped Connection
- Check battery level and recharge if necessary.
- Ensure the keyboard is within the effective range of your Bluetooth device.
- Restart both the keyboard (fold and unfold) and your host device.
- Avoid strong electromagnetic interference sources.
6.3 Keyboard Prevents Device from Sleeping (Windows)
- If connected via USB, disconnect the keyboard when not in use to allow the system to enter sleep mode properly.
- Check your computer's power management settings for USB devices.
7. Specifications
| Model Number | BT-KEY3XL |
| Connectivity Technology | Bluetooth Wireless |
| Compatible Devices | iPad, iPhone, Android Phones/Tablets, MacBooks, Windows Desktops/Laptops, Google Chromebooks, Linux |
| Keyboard Layout | QWERTY |
| Number of Keys | 78 |
| Switch Type | Scissor |
| Material | Aluminum |
| Product Dimensions (Unfolded) | 11.5"L x 4.75"W x 0.75"H (290 x 117 x 13 mm) |
| Product Dimensions (Folded with cover) | 6.6"L x 5"W x 0.9"H (167 x 124 x 23 mm) |
| Item Weight (Keyboard only) | 9.8 oz (278 g) |
| Item Weight (Keyboard + cover) | 15.7 oz (446 g) |
| Power Source | Battery Powered (USB-rechargeable Li-Ion) |
8. Warranty and Support
The Plugable Foldable Bluetooth Keyboard BT-KEY3XL comes with a 2-Year Limited Parts and Labor Warranty. For technical support or warranty claims, please contact Plugable customer service. Details can be found on the official Plugable website or through the contact information provided with your product.