Product Type | Headset |
Series | WHM621 |
Model | WHM621T |
Brand | YEALINK |
Form Factor | On-Ear |
Wear Style | Headband |
Audio Output Mode | Mono |
Weight | 80 g |
Power Supply | Rechargeable Lithium Battery |
Battery Life (Talk time) | Up to 13 hours |
Battery Life (Standby time) | Up to 90 hours |
Charging Time | 2.5 hours |
Max Operating Distance | 300 m |
YEALINK WHM621T DECT Wireless Mono On-Ear 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.
- Designed for professionals who need freedom of movement with a 300-meter wireless range
- Exceptional voice clarity through advanced dual-microphone technology and wide audio frequency
- Lightweight and ergonomic on-ear form factor enables comfortable all-day usage without fatigue
Product Overview
WHM621 - Headset - DECT - Wireless - On-Ear - Mono - 20 - 20000 HZSpecifications
Product Overview
Audio Features
Frequency Response (Headphones) | 20 - 20000 Hz |
Frequency Response (Microphone) | 100 - 8000 Hz |
Impedance | 32 ohms |
Sensitivity | 92.5 dB |
Microphone Type | ECM and MEMS dual microphone |
Noise Cancelling Microphone | Yes |
Speaker Driver Size | 28 mm |
Microphone Features | Acoustic Shield Technology, Noise Suppression |
Physical & Environmental
Operating Temperature | 0°C to 40°C |
Relative Humidity (Operating) | 10% to 95%, non-condensing |
Device Dimensions (Headset) | 149 mm x 120 mm x 52 mm |
Device Dimensions (Base) | 87 mm x 91 mm x 90 mm |
Cloud Management & Licensing
Compatible Platforms | Microsoft Teams, Zoom, UC platforms |
Management Interface | Yealink USB Connect |
Yealink Device Management Platform Compatible | Yes |
Interfaces
Connectivity Technology | Wireless |
Connection Interface | USB 2.0 |
Base Station Interface | USB-A |
Headset Interface to Base | DECT |
Wireless Technology | DECT 6.0 |
Wireless Features
Wireless Range | Up to 300 meters (line of sight) |
Wireless Standard | DECT 6.0 |
Multipoint Connectivity | Yes |
Base Station Connectivity | USB-A for PC connection |
Compliance & Origin
Country of Origin | China |
Certifications | CE, FCC, RoHS, WEEE |
DECT Certification | Yes |