Yealink WH66 Wireless DECT Headset (Mono) Instruction Manual

3.1 Connecting to a PC

To connect your Yealink WH66 headset base to a PC:

1. Locate the USB port on the headset base labeled "PC".
2. Connect one end of the provided USB cable to the "PC" port on the base.
3. Connect the other end of the USB cable to an available USB port on your computer.
4. The PC button LED on the base will illuminate, indicating a successful connection.
5. Ensure the headset is set as the default audio device in your computer's sound settings and your preferred softphone application (e.g., Microsoft Teams).

Image: The Yealink WH66 headset base connected to a laptop via USB cable.

3.2 Connecting to a Desk Phone

To connect your Yealink WH66 headset base to a desk VoIP phone:

1. Locate the USB port on the headset base labeled with a phone icon.
2. Connect one end of the provided USB cable to this phone port on the base.
3. Connect the other end of the USB cable to an available USB port on your desk phone.
4. Alternatively, for certain Yealink desk phones (e.g., T3 series), an EHS35 adapter may be required for remote call control. Connect the EHS35 adapter to the headset port on the desk phone and then to the base.
5. The Phone button LED on the base will illuminate, indicating a successful connection.
6. Ensure the desk phone's settings are configured to use the headset for ringing and audio.

Image: The Yealink WH66 headset base connected to a desk phone.

3.3 Pairing with a Mobile Device

The headset base supports Bluetooth connectivity for mobile devices:

1. On the headset base's touch screen, navigate to the Bluetooth settings.
2. Ensure Bluetooth is enabled on the headset base. You may also modify the device name for easy identification.
3. On your mobile device, enable Bluetooth and search for available devices.
4. Select the Yealink WH66 from the list of available devices to pair.
5. Once paired, a mobile phone card will appear on the headset base's touch screen, indicating successful connection.

Image: The Yealink WH66 headset base with a mobile phone placed on an optional wireless charger.

3.4 Wearing Styles

The WH66 headset is designed for comfort and can be adjusted to fit your preference:

1. Adjust the headband to ensure a snug yet comfortable fit over your head.
2. Position the microphone boom arm so that it points towards your mouth, approximately 0.5 inches away, for optimal voice pickup.
3. The microphone boom is bendable, allowing you to fine-tune its position.

Image: A woman wearing the Yealink WH66 headset, demonstrating proper microphone positioning.

4.1 Call Management

The WH66 offers multiple ways to manage your calls:

• Answering/Rejecting Calls: You can answer or reject incoming calls directly from the headset's button, the base's touch screen, or your connected PC/desk phone interface.
• Muting: Flip the microphone boom up to automatically mute, or use the dedicated mute button on the headset or the touch screen.
• Multi-way Calls: Manage multiple calls simultaneously, including answering new calls while holding current ones, or merging calls for conferencing.
• Redialing: Quickly redial the last number from the touch screen or headset.

4.2 Touch Screen Operations

The 4.0-inch touch screen on the base provides intuitive control over your headset and calls:

• Dial Pad: Use the on-screen dial pad to make calls directly.
• Call Control: Answer, end, hold, mute, and switch calls with a tap.
• Settings: Access basic and advanced settings to customize your headset experience, including wireless range, voice announcements, and auto-answer features.
• Device Management: View connected devices (PC, mobile, desk phone) and switch between them.

Image: A close-up view of the Yealink WH66 headset base's touch screen interface.

4.3 LED Indicators

The headset and base feature LED indicators to communicate status:

• Ringing: LED flashes red.
• In a Call: Busylight (if connected) glows red.
• Battery Status: Red flashing LED for low battery (0-19%), green flashing for charging (20-100%), solid green for fully charged.
• Teams Connection: LED glows purple when connected to Teams. Flashes purple for missed calls/voice messages.
• Out of Range: LED flashes orange.

5.1 Replacing Ear Cushions

To maintain hygiene and comfort, ear cushions can be replaced:

1. Gently pull off the old ear cushion from the headset.
2. Align the new ear cushion with the headset and press firmly to secure it.

5.2 Firmware Updates

Keep your headset updated for optimal performance and new features:

1. Download the Yealink USB Connect client from the official Yealink support website.
2. Connect your headset base to your PC via USB.
3. Launch the Yealink USB Connect client. It will detect your device and show its current firmware version.
4. You can check for updates automatically or manually upload firmware files downloaded from the Yealink support site.
5. The headset will automatically update firmware when docked in the base. The LED will flash red and green alternatively during the update process.