Product Type | Wireless DECT Headset System |
Form Factor | Over-the-head, binaural (dual ear) |
Display Type | Capacitive touch screen |
Display Size | 4.0 inches |
Display Resolution | 480 x 800 pixels |
Speakerphone | Integrated full-duplex speakerphone |
Noise Cancelling Technology | Yealink Acoustic Shield Technology |
Busylight Indicator | Built-in LED on headset and base |
Wireless Charging Support | Yes, for mobile phone via integrated base station cradle |
Battery Type | Rechargeable lithium polymer |
Battery Talk Time | Up to 14 hours |
Battery Standby Time | Up to 125 hours |
Charging Time | 2.5 hours |
Power Source | AC adapter via base station |
Yealink WH66-DUAL-TEAMS Wireless Touchscreen Headset




Key Benefits

Eye-Insights™ by Eye-In Technologies
AI-Powered Summaries from Online Customer Reviews
AI-Powered Summaries from Online Customer Reviews
Eye-Insights™ are generated by proprietary AI that analyzes real online customer reviews to highlight top pros and key product features. While we aim for accuracy, insights are provided “as-is” and individual results may vary.
- Integrated touchscreen, wireless charger, and USB hub offer all-in-one desk productivity.
- Optimized for Microsoft Teams, ensuring seamless UC integration.
- Yealink Noise Cancelling Technology ensures professional-grade call quality.
Product Overview
Two ear pieces 4.0 inch (480 x 800) capacitive touch screen 2-ports USB 3.0 hub Crystal Speakerphone Teams Compatible Yealink Noise Cancelling Technology Integrated busylight LED indicator Wireless ChargerSpecifications
Product Overview
Wireless Features
Wireless Technology | DECT 6.0 |
Wireless Range | Up to 160 meters (525 feet) |
DECT Frequency Band | 1.88–1.90 GHz (Europe); 1.92–1.93 GHz (USA) |
Multi-device Connectivity | Yes, dual connectivity to PC and desk phone |
Compliance & Origin
Country of Origin | China |
TAA Compliant | No |
Certifications | Microsoft Teams Certified, CE, FCC, RoHS |
Advanced Security Features
Audio Encryption | Yes, DECT secure encryption |
Secure Pairing | Yes, with base station authentication |
Interfaces
Headset Interface | DECT Wireless |
Base Station Interfaces | USB 3.0 x2, RJ9, USB-C |
USB Hub | 2 x USB 3.0 ports on base |
Phone Connectivity | USB for softphone/Teams, RJ connection for desk phone |
Bluetooth Connectivity | No built-in Bluetooth |
Wired Ethernet Ports | None |
Physical & Environmental
Headset Weight | 170 g (approximate) |
Base Station Dimensions | 120 mm x 120 mm x 103 mm |
Operating Temperature | 0°C to 40°C (32°F to 104°F) |
Storage Temperature | -10°C to 50°C (14°F to 122°F) |
Relative Humidity (non-condensing) | 10% – 95% |
Cloud Management & Licensing
Unified Communications Platform | Certified for Microsoft Teams |
Management Interface | Yealink USB Connect & Device Management Platform |
Licensing Requirement | No additional licensing for basic functionality |