1. 서론
The Techkey USB Bluetooth 5.4 Adapter is designed to provide your desktop PC or laptop with advanced Bluetooth connectivity. Featuring Bluetooth 5.4+EDR technology and a 5dBi antenna, this adapter offers extended range, faster data transmission, and the ability to connect multiple devices simultaneously. It is compatible with Windows 11, 10, and 8.1 with plug-and-play functionality, and supports Windows 8/7 with driver installation.

Image 1.1: Techkey USB Bluetooth 5.4 Adapter supporting Bluetooth Low Energy (BLE) for various applications.
2. 제품 특징
- 확장된 범위: Utilizes Class 1 radio technology and a 5dBi antenna, providing a transmission range of up to 500ft (150m) in open areas. Actual range may vary due to physical obstructions and wireless interference.
- Fast Transmission Rate: Achieves speeds of up to 3Mbps with EDR technology and Bluetooth Low Energy (BLE) configuration, optimizing data transfer and reducing interference in the 2.4GHz band.
- 플러그 앤 플레이: For Windows 11, 10, and 8.1, no driver installation is required. Simply plug the adapter into a USB port to begin use.
- 고급 블루투스 기술: Equipped with the latest Bluetooth 5.4+EDR technology, backward compatible with Bluetooth 5.4/5.3/5.2/4.2/4.0/2.1+EDR. Features Dual Mode (BR/EDR+ Bluetooth Low Energy) for reduced energy consumption and enhanced performance.
- 다중 장치 연결: Supports simultaneous connections with up to 7 Bluetooth wireless devices, including speakers, keyboards, headsets, mice, and printers.

Image 2.1: Internal chip highlighting key performance benefits of the adapter.
3. 패키지 내용
- 1 x Techkey USB Bluetooth 5.4 Adapter with 5dBi Antenna
Note: A mini-CD or USB drive containing drivers for older Windows versions (Windows 8/7) may be included. Please check your package contents.
4. 설정 지침
4.1 시스템 요구 사항
- Operating System: Windows 11 / 10 / 8.1 (Plug & Play)
- Operating System: Windows 8 / 7 (Driver installation required)
- USB Port: Available USB-A port
Note: This adapter is exclusively compatible with Windows operating systems and does not support Mac OS, Linux, car stereo systems, XBOX, PS4, or TVs.
4.2 설치 단계
- 어댑터를 삽입합니다: Carefully plug the Techkey USB Bluetooth 5.4 Adapter into an available USB-A port on your desktop PC or laptop.
- Automatic Recognition (Windows 11/10/8.1): For these operating systems, the adapter should be automatically recognized and installed by the system. No manual driver installation is typically needed.
- 드라이버 설치(Windows 8/7): If you are using Windows 8 or 7, you may need to install drivers. Please refer to the included mini-CD/USB drive or visit the Techkey official website for the appropriate drivers. Follow the on-screen instructions to complete the installation.

Image 4.1: Plug & Play setup for Windows 11/10/8.1.
5. 사용 설명서
5.1 블루투스 기기 페어링
- 블루투스 활성화: After successful installation, ensure Bluetooth is enabled on your computer. You can usually find this in Windows Settings > Devices > Bluetooth & other devices.
- 기기를 페어링 모드로 전환하세요: Place your Bluetooth device (e.g., headphones, mouse, keyboard) into pairing mode. Refer to your device's manual for specific instructions.
- 장치 추가: On your computer, click "Add Bluetooth or other device" and select "Bluetooth."
- 선택 및 연결: 컴퓨터가 근처의 Bluetooth 기기를 검색합니다. 목록에서 기기를 선택하고 화면의 안내에 따라 페어링을 완료하세요.
5.2 여러 장치 연결
The Techkey USB Bluetooth 5.4 Adapter supports connecting up to 7 Bluetooth devices simultaneously. Once paired, your devices should automatically reconnect when they are within range and Bluetooth is enabled on your computer.

Image 5.1: The adapter supports a wide range of applications and multiple device connections.
6. 유지관리
To ensure the longevity and optimal performance of your Techkey USB Bluetooth 5.4 Adapter, follow these general maintenance guidelines:
- 건조하게 유지하세요: 어댑터를 습기나 액체에 노출시키지 마세요.
- 온도: Store and operate the adapter within normal room temperatures. Avoid extreme heat or cold.
- 청소: If necessary, gently wipe the adapter with a dry, soft cloth. Do not use harsh chemicals or abrasive cleaners.
- 물리적 보호: 어댑터를 떨어뜨리거나 강한 충격을 주지 마십시오.
7. 문제 해결
If you encounter issues with your Techkey USB Bluetooth 5.4 Adapter, consider the following troubleshooting steps:
- Adapter Not Recognized (Windows 11/10/8.1):
- 어댑터를 다른 USB-A 포트에 꽂아보세요.
- 컴퓨터를 다시 시작하세요.
- Check Device Manager to see if the Bluetooth device is listed and enabled.
- Driver Issues (Windows 8/7):
- Ensure you have installed the correct drivers from the included media or the Techkey official web대지.
- If drivers were installed, try reinstalling them.
- 연결 문제:
- Bluetooth 장치가 페어링 모드이고 완전히 충전되었는지 확인하세요.
- Verify that the device is within the adapter's operational range (up to 500ft/150m in open areas).
- Reduce physical obstructions (walls, furniture) and sources of wireless interference (Wi-Fi routers, microwaves) between the adapter and your Bluetooth device.
- Remove and re-pair the Bluetooth device from your computer's Bluetooth settings.
- Slow Transmission/Lag:
- Ensure there are no other strong 2.4GHz wireless signals causing interference.
- Limit the number of active Bluetooth connections if experiencing performance degradation.
8. 사양
| 특징 | 사양 |
|---|---|
| 제품 치수 | 4.29 x 3.74 x 0.67 인치 |
| 품목 무게 | 1.44온스(0.04킬로그램) |
| 상표 | 테크키 |
| 하드웨어 인터페이스 | USB |
| 색상 | 검은색 |
| 호환 장치 | Headphone, Keyboard, Laptop, Mouse, Printer, Speaker |
| 데이터 전송 속도 | 초당 3메가비트 |
| 호환되는 운영 체제 제품군 | 윈도우 |
| Minimum Required Operating System Version | Windows 10 (Plug & Play), Windows 8/7 (Driver Required) |

Image 8.1: Performance comparison of the Techkey Bluetooth 5.4 adapter.
9. 보증 및 지원
For warranty information or technical support, please contact Techkey customer service. Refer to the product packaging or the official Techkey web연락처 정보 사이트.