Introduction
Thank you for purchasing the eSynic Mini Bluetooth Foldable Keyboard. This compact and versatile keyboard is designed for portability and convenience, allowing you to type comfortably on the go with various devices. Please read this manual carefully to ensure proper use and maintenance of your device.
Safety Information
- Keep the keyboard away from water, moisture, and extreme temperatures.
- Do not attempt to disassemble or repair the device yourself. This will void the warranty.
- Use only the provided charging cable or a certified equivalent.
- Avoid dropping or subjecting the keyboard to strong impacts.
- Dispose of the battery according to local regulations.
Package Contents

Figure 1: Package Contents. The image displays the eSynic Mini Bluetooth Foldable Keyboard, a USB charging cable, and the user manual.
- eSynic Mini Bluetooth Foldable Keyboard
- USB Charging Cable
- User Manual
Product Overview

Figure 2: Unfolded Keyboard View. This image shows the eSynic Mini Bluetooth Foldable Keyboard fully unfolded, displaying its QWERTY key layout.

Figure 3: Keyboard Layout and Indicators. This image highlights the key areas of the keyboard, including the indicator lights for Caps Lock/Bluetooth, Bluetooth status, power/low battery, and the function keys for system switching and language change.
The eSynic Mini Bluetooth Foldable Keyboard features a standard QWERTY layout with additional function keys for enhanced control. It includes indicator lights for Caps Lock, Bluetooth connection status, and battery level.
Key Features:
- Compact and Portable: Folds into a pocket-sized unit for easy transport.
- Wide Compatibility: Works with iOS, Android, and Windows devices.
- Long Battery Life: Rechargeable 210 mAh Li-ion battery.
- Smart Magnetic On/Off: Automatically powers on when unfolded and off when folded.
Setup
1. Charging the Keyboard

Figure 4: Charging Port. The image shows the USB-C charging port on the side of the keyboard and indicates its charging capabilities: Type-C charging, 80 hours of operation, and 2 hours for a full charge.
- Locate the USB-C charging port on the side of the keyboard.
- Connect the provided USB charging cable to the keyboard and a power source (e.g., computer USB port, USB wall adapter).
- The charging indicator light will illuminate. It typically takes about 2 hours for a full charge.
- Once fully charged, the indicator light may change or turn off. A full charge provides approximately 80 hours of continuous use or 60 days of standby time.
2. Bluetooth Pairing

Figure 5: Device Compatibility. This image illustrates the keyboard's compatibility with Android, Windows, and iOS operating systems, along with the corresponding function key combinations (FN+Q, FN+W, FN+E) for switching between modes.
- Power On: Unfold the keyboard. The magnetic switch will automatically power on the device, and the power indicator light will turn on.
- Enter Pairing Mode: Press the Fn key and the C key simultaneously. The Bluetooth indicator light will start blinking, indicating the keyboard is in pairing mode.
- Enable Bluetooth on Your Device: On your smartphone, tablet, or computer, go to the Bluetooth settings and turn on Bluetooth.
- Select Keyboard: Search for available Bluetooth devices. You should see "Bluetooth Keyboard" or a similar name (e.g., "eSynic Keyboard"). Select it to connect.
- Confirm Connection: Once connected, the Bluetooth indicator light on the keyboard will stop blinking and remain solid. The keyboard is now ready for use.
- Automatic Reconnection: After the initial pairing, the keyboard will automatically connect to the last paired device when unfolded, provided Bluetooth is enabled on the device.
Operating Instructions
1. Switching Operating Systems
The keyboard is compatible with multiple operating systems. To optimize key functions for your specific device, switch the keyboard mode:
- For Android devices: Press Fn + Q
- For Windows devices: Press Fn + W
- For iOS devices: Press Fn + E
2. Changing Keyboard Language Input
To change the input language of the keyboard on your connected device, use the following key combinations:
- For Android: Press Ctrl + Shift
- For iOS: Press Ctrl + Spacebar
- For Windows: Press Win + Spacebar
3. Power Saving Mode
The keyboard will automatically enter sleep mode after 10 minutes of inactivity to conserve battery. To wake it up, press any key.
Maintenance
- Clean the keyboard regularly with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Store the keyboard in a cool, dry place when not in use.
- Avoid placing heavy objects on the keyboard to prevent damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard does not power on. | Low battery; Keyboard not unfolded correctly. | Charge the keyboard fully; Ensure the keyboard is fully unfolded to activate the magnetic switch. |
| Cannot connect via Bluetooth. | Keyboard not in pairing mode; Bluetooth off on device; Device already paired with another keyboard; Out of range. | Press Fn+C to enter pairing mode; Enable Bluetooth on your device; Disconnect from other keyboards; Ensure device is within 10m range. |
| Keys are not responding or typing incorrectly. | Incorrect operating system mode selected; Low battery; Software glitch. | Switch to the correct OS mode (Fn+Q/W/E); Charge the keyboard; Restart the keyboard and device. |
| Keyboard frequently disconnects. | Low battery; Interference; Device too far. | Charge the keyboard; Move away from other wireless devices; Keep device within 10m range. |
Specifications

Figure 6: Folded Dimensions. This image provides the dimensions of the keyboard when folded: 145mm (5.71in) in length, 92mm (3.62in) in width, and 16mm (0.63in) in thickness.
| Model Number | ESY021 |
| Connectivity Technology | Bluetooth 3.0 |
| Operating Range | Up to 10 meters (33 feet) |
| Battery Type | Rechargeable Lithium-ion (210 mAh) |
| Working Time | Approx. 80 hours (continuous use) |
| Standby Time | Approx. 60 days |
| Charging Time | Approx. 2 hours |
| Compatible Operating Systems | iOS, Android, Windows |
| Keyboard Layout | QWERTY (Spanish layout as per product title) |
| Folded Dimensions (L x W x H) | 145mm x 92mm x 16mm (5.71in x 3.62in x 0.63in) |
| Number of Keys | 104 |
Warranty and Support
eSynic products are designed and manufactured to the highest quality standards. For any questions, technical support, or warranty claims, please contact eSynic customer service through the retailer where you purchased the product or visit the official eSynic website for contact information.
Please retain your proof of purchase for warranty purposes.