Giới thiệu
The LASUNEY U9 Wireless Bluetooth Earbuds are designed for active lifestyles, offering a blend of durability, comfort, and sound quality. Key features include extended battery life, IPX7 waterproof rating, and intuitive multifunction controls. This manual provides essential information for setting up, operating, and maintaining your headphones.

Figure 1: LASUNEY U9 Sports Bluetooth Headphones with included carrying case.
Thiết lập và ghép nối
Before first use, ensure the earbuds are fully charged. Remove any plastic film covers from the charging points. The earbuds feature a Type-C charging port for convenient power replenishment.

Figure 2: The earbuds offer up to 13 hours of playtime and support USB-C charging.
Hướng dẫn ghép nối:
- For initial pairing, ensure your device is within one meter of the earbuds.
- Hold and press the Multi-Function Button (MFB) for 3 seconds while the earbuds are powered off. The red and blue lights will flash alternately, indicating that searching mode has begun. This mode will last for two minutes.
- On your device (phone, tablet, laptop), search for Bluetooth devices and select "U8" from the list.
- If prompted, enter the PIN code "0000". (Note: Some devices may require a PIN code for pairing).
- Once successfully paired, the blue light on the earbuds will flash.
- If pairing is unsuccessful, repeat the steps above.
Vận hành tai nghe
The LASUNEY U9 earbuds feature a multifunction operation button for easy control of various functions.

Figure 3: Diagram illustrating the multifunction button controls.
- Bật/Tắt nguồn: Nhấn và giữ nút Đa chức năng.
- Phát/Tạm dừng: Single press the Multi-Function Button during audio playback.
- Kiểm soát âm lượng: Use the dedicated Vol+ and Vol- buttons.
- Bài hát trước / sau: Use the dedicated Previous and Next buttons.
- Trợ lý Siri / Thoại: Press the designated button for voice assistant activation.
- Kiểm soát cuộc gọi điện thoại: The Multi-Function Button can be used to answer, end, or reject calls.
- Quay số lại số cuối cùng: A specific function allows for redialing the last called number.
- Đèn báo LED: Provides status updates (e.g., pairing mode, connected, charging).
The earbuds are designed for a comfy and secure fit with ergonomics ear hooks and a neck strap design, ensuring lightweight comfort and stability during activities. They also feature magnetic earbuds that can clip together when not in use, preventing loss.

Figure 4: Ergonomic design with soft ear hooks and magnetic feature for secure wear.
Experience authentic HIFI sound with high reduction and low distortion, providing a pleasant listening experience.

Figure 5: Enjoy high-fidelity sound with minimal distortion.
BẢO TRÌ
To ensure the longevity and optimal performance of your LASUNEY U9 headphones, follow these maintenance guidelines:
- Vệ sinh: Regularly wipe the earbuds and charging contacts with a soft, dry cloth. Avoid using abrasive materials or harsh chemicals.
- Kho: When not in use, store the headphones in the provided storage bag to protect them from dust, dirt, and physical damage. The magnetic feature helps keep them secure.
- Sạc: Always use the provided USB-C charging cable. Avoid overcharging the battery.
- Khả năng chống nước: The earbuds are IPX7 waterproof, meaning they can withstand submersion in up to 1 meter of water for 30 minutes. However, they are not designed for swimming or prolonged water exposure. Ensure the charging port cover is securely closed before exposure to water.

Figure 6: The IPX7 waterproof rating protects against sweat and rain.
Xử lý sự cố
If you encounter issues with your LASUNEY U9 headphones, try the following steps:
- Không có điện: Ensure the earbuds are fully charged. Check the charging cable and adapter for proper connection.
- Vấn đề ghép nối:
- Đảm bảo Bluetooth đã được bật trên thiết bị của bạn.
- Hãy đảm bảo tai nghe đang ở chế độ ghép nối (đèn đỏ và xanh lam nhấp nháy luân phiên).
- Forget "U8" from your device's Bluetooth list and attempt to re-pair.
- Di chuyển tai nghe đến gần thiết bị hơn.
- Âm lượng thấp/Chất lượng âm thanh kém:
- Adjust the volume on both the earbuds and your connected device.
- Ensure the ear tips are properly seated in your ear canal for optimal sound isolation.
- Lau sạch mọi mảnh vụn bám trên loa tai nghe.
- Kết nối không liên tục:
- Giảm khoảng cách giữa tai nghe và thiết bị của bạn.
- Avoid obstacles (walls, large objects) that may interfere with the Bluetooth signal.
- Giảm thiểu nhiễu từ các thiết bị không dây khác.
Thông số kỹ thuật
| Tính năng | Chi tiết |
|---|---|
| Tên mẫu | U9 |
| Công nghệ kết nối | Không dây (Bluetooth) |
| Công nghệ truyền thông không dây | Bluetooth |
| Các thành phần bao gồm | Storage Bag, Carabiner Clip |
| Thời gian sạc | 13 Hours (Battery Life) |
| Mức độ chống nước | Chống nước (IPX7) |
| Phiên bản Bluetooth | 5.0 |
| Vị trí tai | Trên tai |
| Yếu tố hình thức | Trong tai |
| Phương pháp kiểm soát | Chạm |
| Màu sắc | Đen |
Có gì trong hộp
Your LASUNEY U9 Wireless Earbuds package includes:
- LASUNEY U9 Wireless Earbuds x 1
- Cáp sạc USB x 1
- Túi lưu trữ x 1
- Kẹp Carabiner x 1
- Ear tips x 3 pairs (S/M/L)
- Hướng dẫn sử dụng x 1

Figure 7: The earbuds come with a convenient storage bag and carabiner clip for portability.
Bảo hành và Hỗ trợ
LASUNEY offers a warranty for your product. To activate your 3-year warranty, please refer to the warranty card included in your package or visit the official LASUNEY webđịa điểm.
If you receive defective products or have any questions during use, please feel free to contact LASUNEY customer support. Contact information can typically be found in the user manual included in the box or on the official brand webđịa điểm.
Để được hỗ trợ thêm và biết thêm thông tin sản phẩm, bạn có thể truy cập trang web. LASUNEY Store on Amazon.



