1. Introduction
Thank you for choosing the HTC USB Type-C Hi-Res Earphones, Model 99H20317-00. These earphones are designed to provide a high-quality audio experience with their advanced features and ergonomic design. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your new earphones.
Key features include:
- Concert hall design for unparalleled sound.
- Larger 13mm speakers for a fuller sound profile.
- Enhanced port optimization for improved bass reproduction.
- Lighter and thinner aerospace polymer diaphragm to increase sound frequency response.
- Ergonomic design for maximum comfort during extended use.
2. Safety Information
Please read and follow these safety guidelines to ensure safe and optimal use of your earphones:
- Hearing Protection: Avoid listening at high volume levels for prolonged periods to prevent hearing damage.
- Environmental Awareness: Do not use earphones in situations where the inability to hear ambient sounds could be dangerous, such as while driving, cycling, or walking in traffic.
- Cleaning: Clean the earphones regularly with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Water Exposure: These earphones are not waterproof. Avoid exposure to water or excessive moisture.
- Children: Keep out of reach of small children due to small parts that could pose a choking hazard.
3. Package Contents
Verify that all items are present in your package:
- HTC USB Type-C Hi-Res Earphones (Model: 99H20317-00)
- Additional ear tips (if included)
- User Manual (this document)
4. Setup
These earphones are designed for simple plug-and-play operation.
- Connect: Insert the USB Type-C connector of the earphones into the USB Type-C port of your compatible device (Smartphone, Laptop, Tablet).
- Device Recognition: Your device should automatically recognize the earphones. If prompted, select the earphones as the audio output device.
- Adjust Volume: Begin playback at a low volume and gradually increase to a comfortable listening level.
Figure 1: HTC USB Type-C Hi-Res Earphones connected to a device.
5. Operating Instructions
Once connected, your earphones are ready for use.
- Audio Playback: Play audio from your connected device. The sound will be routed through the earphones.
- Call Management: For devices supporting call functions, you can typically answer/end calls using the device's interface.
- App Control: This model supports control via an application. Refer to your device's app store for any official HTC audio control applications that may offer additional features or sound customization.
6. Maintenance and Care
Proper care extends the lifespan of your earphones:
- Cleaning Ear Tips: Gently remove ear tips and clean them with a mild soap solution and water. Ensure they are completely dry before reattaching.
- Cleaning Earphone Body: Wipe the earphone body and cable with a soft, dry, lint-free cloth. Do not use abrasive materials or harsh chemicals.
- Storage: When not in use, store the earphones in a clean, dry place, preferably in a protective pouch to prevent tangling and damage.
- Cable Management: Avoid tightly winding the cable or subjecting it to sharp bends, which can damage internal wires.
Figure 2: Exploded view of earphone components, highlighting the 13mm speaker and aerospace polymer diaphragm.
7. Troubleshooting
If you encounter issues, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Earphones not properly connected; device volume too low; incorrect audio output selected on device. | Ensure the USB Type-C connector is fully inserted. Increase device volume. Check device audio settings to confirm earphones are selected as output. |
| Poor sound quality | Dirty ear tips; damaged cable; low-quality audio source. | Clean ear tips. Inspect the cable for visible damage. Try a different audio source or file. |
| Earphones uncomfortable or fall out | Incorrect ear tip size. | Try different sized ear tips (if provided) to find the best fit for your ears. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | HTC |
| Model Number | 99H20317-00 |
| Connectivity Technology | Wired (USB Type-C) |
| Speaker Size | 13 mm |
| Material | Synthetic leather (ear tips/housing accents) |
| Weight | 50 grams |
| Product Dimensions | 0.1 x 0.1 x 0.1 cm (packaging/shipping dimensions, actual earphone size is compact) |
| Control Method | App |
| Bluetooth Support | No |
| Batteries Required | No |
| Compatible Devices | Smartphone, Laptop, Tablet with USB Type-C audio output |
| Color | Dark grey |
| Ear Placement | In-ear |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official HTC support website. Keep your proof of purchase for warranty claims.
