1. Product Overview
The deleyCON USB Bluetooth 4.0 Adapter is designed to provide Bluetooth connectivity to your computer, enabling wireless communication with various Bluetooth-enabled devices. This compact adapter utilizes Bluetooth 4.0 technology with Enhanced Data Rate (EDR) for efficient and secure data transfer.
- Bluetooth 4.0 Technology: Ensures stable and secure connections.
- EDR Mode: Supports data transfer speeds of up to 3 Mbit/s.
- Plug & Play: Simple and quick installation on compatible Windows operating systems.
- Operating Range: Up to 10 meters (33 feet) in open spaces.
- Wide Compatibility: Connects with a variety of Bluetooth devices such as headphones, speakers, keyboards, mice, smartphones, and tablets.
A close-up view of the deleyCON USB Bluetooth 4.0 adapter, showcasing its compact design and the deleyCON logo.
2. Package Contents
Please check the package for the following item:
- 1x deleyCON USB Bluetooth 4.0 Adapter (Model MK680)
The retail packaging for the deleyCON USB Bluetooth 4.0 adapter, alongside two adapters, one showing the front and the other the back with regulatory markings.
3. Installation & Setup
3.1 System Requirements
Ensure your computer meets the following requirements:
- Available USB 2.0 port (compatible with all USB versions).
- Operating System: Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, or Windows 10.
- The adapter is designed for PC hardware platforms.
3.2 Connecting the Adapter (Plug & Play)
- Locate an available USB port on your desktop or laptop computer.
- Insert the deleyCON USB Bluetooth 4.0 adapter firmly into the USB port.
The deleyCON USB Bluetooth 4.0 adapter positioned next to a laptop's USB port, demonstrating its small size and readiness for connection.
The deleyCON USB Bluetooth 4.0 adapter plugged into a laptop's USB port, showing its active blue indicator light, signifying operation.
The adapter is Plug & Play, meaning your operating system should automatically detect and install the necessary drivers. A blue indicator light on the adapter will illuminate when it is successfully installed and active.
4. Operating Instructions
4.1 Pairing Bluetooth Devices
Once the adapter is installed, you can pair your Bluetooth devices with your computer:
- Ensure your Bluetooth device (e.g., headphones, speaker, mouse) is in pairing mode. Refer to your device's manual for specific instructions.
- On your Windows computer, navigate to Settings > Devices > Bluetooth & other devices.
- Turn on Bluetooth if it is not already enabled.
- Click on Add Bluetooth or other device and select Bluetooth.
- Your computer will search for nearby Bluetooth devices. Select your device from the list and follow any on-screen prompts to complete the pairing process.
4.2 Device Compatibility
The deleyCON USB Bluetooth 4.0 Adapter supports connectivity with a wide range of Bluetooth-enabled devices, including but not limited to:
- Mobile phones and smartphones
- Tablets
- Headphones and headsets
- Bluetooth speakers
- Keyboards and mice
⚠️ Important Note: This adapter is not compatible with car radios or automotive stereo systems. ⚠️
A diagram illustrating the deleyCON USB Bluetooth 4.0 adapter connecting a PC/laptop to various Bluetooth devices such as printers, headphones, speakers, keyboards, mice, and tablets.
5. Technical Specifications
| Brand | deleyCON |
| Model Number | MK680 |
| Bluetooth Version | 4.0 (with EDR) |
| Interface | USB 2.0 (backward compatible) |
| Data Transfer Rate | Up to 3 Mbit/s |
| Operating Range | Up to 10 meters (33 feet) |
| Operating Frequency | 2.4 GHz ~ 2.4835 GHz (ISM band) |
| Chipset | Reliable IVT Chipset |
| Supported OS | Windows XP / Vista / 7 / 8 / 8.1 / 10 |
| Color | Black |
| Product Dimensions | Approx. 20mm x 16mm x 5mm (0.78 x 0.63 x 0.19 inches) |
| Product Weight | Approx. 4.54 g |
An illustration of the deleyCON USB Bluetooth 4.0 adapter with its dimensions clearly marked: 20mm (0.78 inch) length, 16mm (0.63 inch) width, and 5mm (0.19 inch) thickness.
6. Troubleshooting Common Issues
6.1 Adapter Not Recognized
- Check USB Port: Try plugging the adapter into a different USB port on your computer.
- Restart Computer: A system restart can often resolve detection issues.
- Check Device Manager: In Windows Device Manager, look for "Bluetooth" or "Unknown Device." If found, try updating the driver. Although it's Plug & Play, sometimes Windows Update or a manual driver installation might be needed if the automatic process fails.
- Conflicting Drivers: If you had a previous Bluetooth adapter, ensure its drivers are completely uninstalled.
6.2 Cannot Pair Devices
- Device in Pairing Mode: Ensure your Bluetooth device is actively in pairing mode and discoverable.
- Distance: Make sure the Bluetooth device is within the 10-meter operating range of the adapter.
- Interference: Reduce potential interference from other wireless devices (Wi-Fi routers, cordless phones) or physical obstructions.
- Restart Bluetooth Service: In Windows Services, restart the "Bluetooth Support Service."
6.3 Connection Drops or Instability
- Signal Strength: Move the Bluetooth device closer to the adapter.
- Interference: As above, minimize sources of interference.
- Power Management: In Device Manager, for the Bluetooth adapter, go to Properties > Power Management and uncheck "Allow the computer to turn off this device to save power."
- Driver Update: Ensure you have the latest drivers for your Bluetooth adapter.
7. Care and Maintenance
- Keep Dry: Avoid exposing the adapter to moisture or liquids.
- Clean Gently: Use a soft, dry cloth to clean the adapter. Do not use harsh chemicals or abrasive cleaners.
- Avoid Extreme Temperatures: Do not store or operate the adapter in excessively hot or cold environments.
- Handle with Care: Avoid dropping or subjecting the adapter to strong impacts.
8. Warranty Information & Support
For specific warranty details and technical support, please refer to the documentation provided with your purchase or contact deleyCON customer service directly. You can typically find contact information on the manufacturer's official website or through your retailer.



