1. Product Overview
The NNBILI USB-C In-Ear Headphones are designed to deliver high-fidelity audio with a comfortable and durable design. Featuring a USB-C connector, these wired headphones are compatible with a wide range of modern devices, including the iPhone 15 series, various iPad models, Samsung, Xiaomi, Huawei, OnePlus, Google Pixel, and MacBook devices.
Figure 1: NNBILI USB-C In-Ear Headphones and Packaging
2. Setup and Compatibility
2.1 Connecting Your Headphones
- Locate the USB-C port on your device (smartphone, tablet, laptop).
- Insert the USB-C connector of the headphones firmly into the device's USB-C port.
- Your device should automatically recognize the headphones. No additional drivers or software are typically required.
2.2 Device Compatibility
These headphones are designed for broad compatibility with devices featuring a USB-C audio output. Compatible devices include (but are not limited to):
- Apple Devices: iPhone 15 series, iPad Pro 12.9 (3rd & 4th gen), iPad Pro 11 (1st & 2nd gen), iPad Air 4th gen, MacBook Air, MacBook Pro.
- Samsung Galaxy: S21/S21+/S21 Ultra/S20 FE/S20/S20+/S20 Ultra/Note20/Note20 Ultra/Note10/A90.
- Huawei: Mate X2/Mate40 Pro/Mate40/P40 Pro/P40/P30 Pro/P30/P20 Pro/P20, Honor 50/50 Pro/50 SE/Honor V40/ 30/30 Pro/20/20 Pro/X10.
- OnePlus: 9/9 Pro/8T/8Pro/8/7T Pro/7Pro/7T/7/6T.
- Xiaomi: Mi 11/11 Pro/10/10Pro/10T/9/9SE/8/8SE/Mi A2/Mix 2S.
- Google Pixel: 5/4XL/4/3XL/3/2XL.
- OPPO: Find X3/X3 Pro/Find X2/X2 Pro.
Figure 2: Wide Compatibility with USB-C Devices
3. Operating Instructions
The headphones feature an in-line remote control with a built-in microphone for easy management of audio playback and calls.
Figure 3: Remote & Microphone Controls
3.1 Music Playback Controls
- Play/Pause: Single click the middle button.
- Next Song: Double click the middle button.
- Last Song: Triple click the middle button.
- Volume Up: Press the '+' button.
- Volume Down: Press the '-' button.
3.2 Call Management
- Answer Calls: Single click the middle button.
- End Calls: Single click the middle button.
- Reject Calls: Long press the middle button.
3.3 Voice Assistant
- Activate Voice Assistant (e.g., Siri): Long press the middle button.
4. Maintenance and Care
To ensure the longevity and optimal performance of your NNBILI USB-C In-Ear Headphones, follow these maintenance guidelines:
- Cable Care: The headphones feature a durable, reinforced wire designed to prevent winding and knotting. Avoid sharp bends or excessive pulling on the cable to prevent internal damage.
- Cleaning: Gently wipe the earbuds and cable with a soft, dry cloth. Do not use harsh chemicals or abrasive materials. Ensure the USB-C connector is free from dust and debris.
- Storage: When not in use, store the headphones in a clean, dry place, preferably in a small pouch or case to protect them from tangling and physical damage.
- Moisture: Avoid exposing the headphones to moisture, liquids, or extreme temperatures.
Figure 4: Durable Cable Design
5. Troubleshooting
If you encounter any issues with your headphones, please refer to the following common troubleshooting steps:
- No Sound:
- Ensure the USB-C connector is fully inserted into your device.
- Check your device's volume settings and ensure it is not muted.
- Test the headphones with another compatible device to rule out a device-specific issue.
- Clean the USB-C port on your device and the headphone connector for any obstructions.
- Poor Sound Quality:
- Ensure the earbuds are properly seated in your ears for optimal sound and noise isolation.
- Check the audio source (e.g., music file, streaming service) for quality issues.
- Verify that the cable is not damaged or kinked.
- Microphone Not Working:
- Ensure the headphones are properly connected.
- Check your device's microphone privacy settings to ensure the headphones are allowed access.
- Test the microphone with a different application or device.
- Controls Not Responding:
- Ensure the headphones are securely connected.
- Some older devices or specific apps might have limited support for in-line controls.
6. Specifications
| Feature | Description |
|---|---|
| Brand Name | NNBILI |
| Category | Earphones & Headphones |
| Communication | Wired |
| Connectors | Type C (USB-C) |
| Style | In-ear |
| Vocalism Principle | Balanced Armature |
| Active Noise-Cancellation | No (Features passive noise reduction up to 70%) |
| Volume Control | Yes |
| Control Button | Yes |
| Material | Metal, PVC |
| Acoustic Design | Three-layer diaphragm, 3D Stereo Pure Tone Quality, 8.6mm Dynamic Dual Drivers, Heavy Bass |
| Certifications | CE, FCC, RoHS |
| Origin | Mainland China |
| Package Dimensions (Approx.) | Length: 14 cm, Width: 10 cm, Height: 2 cm |
| Package Weight (Approx.) | 0.018 kg |
Figure 5: 3D Stereo Pure Tone Quality Design
Figure 6: Sound Insulation and Noise Reduction
7. User Tips
- Optimal Fit: For the best sound quality and noise isolation, ensure the earbuds fit snugly and comfortably in your ears. The ergonomic design is intended for a painless wearing experience.
- Control Convenience: Utilize the in-line remote for quick access to music playback and call management without needing to interact directly with your device.
- Versatile Use: These headphones are suitable for various environments, including office work, travel (plane, train), studying, and light exercise.
Figure 7: Enjoy Anywhere
8. Warranty and Support
For specific warranty information and customer support, please refer to the seller or the point of purchase. Keep your proof of purchase for any warranty claims.
If you require technical assistance or have questions not covered in this manual, please contact the seller directly through the platform where the product was purchased.
