Yealink WH66 Microsoft Teams DECT Mono Wireless Headset WH66-M-MS
The Yealink WH66 Microsoft Teams DECT Mono Wireless Headset is a premium unified communication solution designed for professionals who value crystal-clear audio and seamless connectivity. Featuring a 4.0-inch touchscreen base, Yealink Acoustic Shield Technology, and built-in Bluetooth and USB 3.0 ports, it allows effortless control of calls and device integration. With wideband audio, noise-canceling microphones, and long wireless range, it delivers superior sound and comfort for all-day productivity. Optimized for Microsoft Teams, the WH66 Mono enhances collaboration and ensures professional-grade communication performance in any workspace.
Works with: Desk phone, Mobile phone, Computer
How does it connect:USB 3.0 & 2 x Bluetooth devices
CONDITION
Brand New - A brand-new, unused, unopened, undamaged item in its original packaging.
WARRANTY
This item comes with a 24-month manufacturer's warranty.
FEATURES
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Connects to either a PC or Yealink desktop IP phone via the USB3.0 port or via the built-in Bluetooth
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Yealink Acoustic Shield Technology
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Crystal speakerphone
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DECT connectivity for wireless operation
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Busy light on headset shows when in use
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DECT base station with 4.0 inch (480 x 800) capacitive touch screen
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USB hub built into the base station
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Built-in Bluetooth 4.2
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Integrated with Yealink IP phones
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Boom arm adjustable: 320°
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Charging stand (for headset)
QUICK SPECIFICATIONS
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Works with: Desk phone, Mobile phone, Computer
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Connectivity: USB 3.0 & 2 x Bluetooth devices
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Battery
- Talk time: up to 13 hours
- Standby time: 90 hours
- Charging time: 2.5 hours (12V/2A)
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DECT
- Wireless range: up to 160m/525 feet
- Secure DECT (level): Step B - authentication - DSAA, encryption - DSC (64bit)
- Cordless Advanced Technology: CAT-iq 2.0
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Audio (Headset)
- Microphone type: dual microphone
- Microphone sensitivity: -44.0+/-3 dBV
- Microphone frequency range: 100 Hz-10 kHz
- Speaker size: Ф 28
- Speaker sensitivity: 92.5+/-3 dB, 0.179 V
- Speaker impedance: 32+/-4.8 Ω
- Speaker max output power: 10 mW
- Speaker frequency range: 20 Hz-10 kHz
- Speaker bandwidth - talk mode: wideband
- Speaker bandwidth - music mode: super wideband (Pending)
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Audio (Base)
- Microphone type: ECM Omnidirectional microphone
- Microphone sensitivity: -38.0+/-2 dBV
- Microphone frequency range: 70 Hz-20 kHz
- Speaker size: 40mm x 20.8mm
- Speaker sensitivity: 97+/-3 dB
- Speaker impedance: 4 Ω+/-15%
- Speaker max output power: 4 W
- Speaker frequency range: 160 Hz-20 kHz
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Optional accessories (sold separately)
- Busylight BLT60
- Wireless Charger
- Bluetooth Dongle BT50
WHAT'S INCLUDED
- WHB660 Base
- WH66-M-MS Headset
- Power Adapter
- 1m USB 3.0 Cable
- Quick Start Guide
Do you have a question about this product? Please call 1800 90 90 99.
Add New Headset During a Call
Introduction
For WH62/WH63/WH66/WH67, up to 4 headsets can be connected to one base for conferencing.
For WH62/WH63/WH66/WH67
Before You Begin
You need to power on the new headset.
Procedure
1. Dock the new headset in the primary headset's base when you are on a call with the primary headset.
2. Press the Call Control button on the primary headset within 10 seconds to accept the new headset to join the conference.
3. The primary headset prompts "New Headset Joined", and the new headset prompts "Headset Connected".
Once the primary headset establishes the call, the audio will be shared between headsets. When the call ends, the additional headset will disconnect from the base.
By default, the new headset is muted after pairing.
Only for WH66/WH67
Before You Begin
You need to power on the new headset.
Procedure
1. Dock the new headset in the base when you are on a call with the primary headset.
2. Go to
or
> Add Headset.
3. Dock the new headset in the base.
4. Press the Call Control button on the primary headset within 10 seconds to accept the new headset into the conference.
5. The primary headset prompts "New Headset Joined", and the new headset prompts "Headset Connected".
Once the primary headset establishes the call, the audio will be shared between headsets. When the call ends, the additional headset will disconnect from the base.
By default, the new headset is muted after pairing.
Important:
- When the call ends, the new headset will disconnect from the base. If you do not want to disconnect new headsets from the base, enable Permanent Conference Mode via the Yealink USB Connect software.
- Different headsets use their own tuning settings while in conferencing mode. You can mute and adjust the volume on your headset without affecting paired headsets.
Add New Headset When Base is Idle
Note: Up to three headsets can be connected to one base for conferencing.
For WH62/WH63/WH66/WH67
Before You Begin
You need to power on the new headset.
Procedure
- Undock the primary headset.
- Dock the new headset in the base.
- Press the Call Control button on the primary headset within 10 seconds to accept the new headset into the conference.
- The primary headset prompts "New Headset Joined", and the new headset prompts "Headset Connected".
Once the primary headset establishes the call, audio will be shared between headsets. When the call ends, the additional headset will disconnect from the base.
By default, the new headset is muted after pairing.
Only for WH66/WH67
Before You Begin
You need to power on the new headset.
Procedure
1. Go to
or
> Settings > Basic Settings > Add Headset.
2. Tap Add and dock the new headset in the base.

3. Press the Call Control button on the primary headset within 10 seconds to accept the new headset.
4. The primary headset prompts "New Headset Joined", and the new headset prompts "Headset Connected".
Once the primary headset establishes the call, audio will be shared between headsets. When the call ends, the additional headset will disconnect from the base.
By default, the new headset is muted after pairing.
Important:
- Enable Permanent Conference Mode via Yealink USB Connect if you want new headsets to remain paired after calls end.
- Different headsets use their own tuning settings while conferencing. Volume and mute controls only affect the headset being adjusted.
Add New Headset Without Docking
Note: Up to three headsets can be connected to one base for conferencing.
WH62/WH63
1. Power off the new headset by pressing the Call Control button for 3 seconds until you hear "Power Off".
2. Power on the headset and hold the Call Control button for 5 seconds until you hear "Power On, Pairing Mode". The button flashes orange.

3. Put the base into pairing mode.
When WH62/WH63 is in an idle state, press the PC button for 5 seconds until the button flashes green and white.

4. Press the Call Control button on the primary headset within 10 seconds to accept the new headset.
The primary headset prompts "New Headset Joined", and the new headset prompts "Headset Connected".
WH66/WH67
1. Power off the new headset by pressing the Call Control button for 3 seconds until you hear "Power Off".
2. Power on the headset and hold the Call Control button for 5 seconds until you hear "Power On, Pairing Mode". The button flashes orange.

3. Put the base into pairing mode.
When WH66/WH67 is used during a call, go to Add Headset > Pair without docking.

4. Press the Call Control button of the primary headset within 10 seconds to accept the new headset into the conference.
The primary headset prompts "New Headset Joined", and the new headset prompts "Headset Connected".
End or Leave Conference Call
Note: Up to three headsets can be connected to one base for conferencing.
To End the Conference for All Headsets
- Press the Call Control button on the primary headset, or
- Dock the primary headset in the base.
To Leave the Conference
- Press the Call Control button on the new headset.
- The conference call will continue for all remaining connected headsets.
Data sheet
- Mono or Stereo
- Mono
- Wired or Wireless
- Wireless
Specific References
- MPN
- WH66-M-MS