Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your TruVoice HD-550 Office and Call Center Wired QD Headset. Designed for professional environments, the HD-550 features a noise-canceling microphone, HD speakers, and a lightweight, comfortable design for all-day use.
Setup Guide
Package Contents
- TruVoice HD-550 Headset
- U10P Quick Disconnect (QD) Adapter Cable
- Ear Cushions (pre-installed or included)
Connecting Your Headset
The TruVoice HD-550 headset utilizes a Quick Disconnect (QD) feature, allowing for easy connection and disconnection from various desk phones and communication devices via the included U10P adapter cable.
- Connect the QD Cable: Align the Quick Disconnect end of the HD-550 headset cable with the Quick Disconnect end of the U10P adapter cable. Push firmly until you hear a click, ensuring a secure connection.
- Connect to Device: Plug the other end of the U10P adapter cable into the headset port of your compatible desk phone. Refer to your phone's manual for the exact headset port location, typically marked with a headset icon.
- Adjust Headset Fit: Place the headset on your head. Adjust the headband for a comfortable fit. The HD-550 is designed for all-day comfort with super soft leatherette ear cushions.
- Position Microphone: Rotate the flexible microphone boom to position the microphone approximately 1-2 inches (2.5-5 cm) from the corner of your mouth. The microphone boom rotates 270 degrees for optimal placement on either side of your head.

Compatibility
The U10P Adapter included with your HD-550 headset is compatible with a wide range of desk phones. Below is a list of commonly supported models. If your specific phone model is not listed, please consult the TruVoice website or contact customer support for further assistance.
- Polycom / Poly EDGE Series: VVX50, VVX101, VVX150, VVX201, VVX250, VVX300, VVX350, VVX301, VVX310, VVX311, VVX400, VVX401, VVX410, VVX411, VVX450, VVX500, VVX501, VVX600, VVX601, IP301, IP335, IP331, IP335, IP560, IP550, CX300, CX500, CX600, CX700, 485.
- Mitel: 5212, 5312, 5320, 5320e, 5330, 5330e, 5340, 5340e, 5410, 5420, 550, 5540, 6867i, 6869i, 6910, 6920, 6930, 8528, IP420, IP420G, IP480, IP485G.
- Avaya: 6402D, 6408D+, 6416D+M, 6424D+M, 8403, 8410D, 8434DX, 4406D+, 4412D+, 4424D+, 4424LD+, 1408, 1416, 2410, 2420, 4610, 4610SW, 4612, 4620, 4620SW, 4621, 4621SW, 4622, 4622SW, 4625, 4625W, 4630, 4630SW, 5410, 5420, 5610, 5620, 5621, 5625, 9404, 9406, 9408, 9504, 9508, DT1, DT3, DT5, QE4610.
- Shoretel: 100, 212, 212K, IP230, 230, 265, 530, 560, 560G, 565, 565G, 655, 420, 480, 480G, 485, 485G.
- Aastra: 6757i, 6731i, 6739i, 6755i, 6867i, 6869i.
- Nortel: T7316, T7316e, T7208.
- Other Compatible Brands: Toshiba DKT, Panasonic, ESI, Fanvil, Digium, Adtran, Ascom, Audiocodes, Altigen, Allworx, Comdial, Intertel.

Operating Instructions
Making and Receiving Calls
Once connected, your TruVoice HD-550 headset functions as your primary audio device for calls. Use your desk phone's controls to dial numbers, answer incoming calls, and end calls.
Volume Control
The HD-550 headset features inline volume control for convenient audio adjustment. Locate the volume control unit on the headset cable. Use the '+' button to increase volume and the '-' button to decrease volume.
Microphone Usage
The HD-550 is equipped with a high-quality noise-canceling microphone to ensure clear communication by filtering out background noise.
- Optimal Placement: Ensure the microphone is positioned close to your mouth, ideally 1-2 inches away, for the best voice pickup and noise cancellation performance.
- Mute Function: If your desk phone or communication software supports it, use its mute function to temporarily disable the microphone. The HD-550 itself does not have an inline mute button.



Care and Maintenance
Proper care ensures the longevity and optimal performance of your TruVoice HD-550 headset.
- Cleaning: Use a soft, dry cloth to clean the headset. For ear cushions, a slightly damp cloth with mild soap can be used, but ensure they are completely dry before use. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, store the headset in a clean, dry place, away from extreme temperatures and direct sunlight. Avoid tangling the cable.
- Cable Care: Do not pull on the cable to disconnect the headset. Always grasp the Quick Disconnect connector firmly. Avoid sharp bends or kinks in the cable.
- Ear Cushion Replacement: Over time, ear cushions may wear out. Replacement ear cushions are available from TruVoice to maintain comfort and hygiene.
Troubleshooting
If you encounter issues with your TruVoice HD-550 headset, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from headset speakers. |
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| People cannot hear me or my voice is too quiet. |
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| Static or poor audio quality. |
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| Headset is uncomfortable. |
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For further assistance, please refer to the official TruVoice User Guide PDF available online or contact TruVoice customer support.
Product Specifications
| Feature | Detail |
|---|---|
| Model Name | Headset With U10P |
| Connectivity Technology | Wired |
| Headphones Jack | 3.5 mm Jack (via QD adapter) |
| Included Components | Cable, Ear Cushions |
| Item Weight | 3.52 ounces (98 grams) |
| Material | Plastic (Die Cast Aluminum Frame for strength) |
| Specific Uses For Product | Business, Calling |
| Control Type | Volume Control (inline) |
| Cable Feature | Detachable (Quick Disconnect) |
| Frequency Range | 20 Hz - 20,000 Hz |
| Noise Control | Sound Isolation, Noise Canceling Microphone |
| Ear Placement | On Ear |
| Color | Black and Silver |
| Manufacturer | TruVoice |
| Item Model Number | HD550 |
| UPC | 757347303355 |
Warranty and Support
TruVoice is committed to providing high-quality products and customer satisfaction. For specific warranty details regarding your HD-550 headset, please refer to the documentation included with your purchase or visit the official TruVoice website.
For technical support, troubleshooting assistance, or inquiries about replacement parts, please contact TruVoice customer service. Contact information can typically be found on the TruVoice website or within your product packaging.
Optional protection plans are available for extended coverage. Please check the product listing or contact your retailer for details on available protection plans.
TruVoice Official Store: Visit TruVoice Store on Amazon





