Description
Portable. Productive. Professional. The Jabra Engage 55 SE Mono wireless headset is engineered to make every call count for hybrid workers and contact-center teams. Whether you’re in the office, at home, or moving between rooms, this lightweight mono DECT headset delivers secure, crystal-clear audio without tying you to your desk. Choose from USB-A or USB-C connectivity and UC or Microsoft Teams certified versions to match your exact platform needs.
The Telecom Spot Expert Take
IT leaders and hybrid teams love the Jabra Engage 55 SE Mono because it solves the two biggest daily frustrations: dropped connections and audio fatigue. With military-grade DECT security that exceeds Level C standards, a noise-cancelling microphone that meets Open Office requirements, and SafeTone 2.0 hearing protection, this headset keeps conversations professional even in noisy environments. At just 57 g it feels barely there during long shifts, and the replaceable battery plus quick USB-C charging means zero downtime. Perfect upgrade from basic wired headsets for small businesses scaling UC/Teams deployments or enterprises standardizing on reliable audio.
Key Features
- Unmatched wireless freedom – Move freely with the compact pre-paired Link 400 DECT adapter; no Bluetooth pairing hassles.
- Enterprise-grade security – Exceeds the highest DECT Security Level C using FIPS 140-2 algorithms so your sensitive calls stay protected.
- Crystal-clear professional audio – Wideband audio (40 Hz–16 kHz) plus dual-microphone noise cancellation keeps your voice sharp and blocks background noise.
- All-day comfort – Ultra-light 57 g mono design with soft leatherette ear cushions that stay cool and never clamp.
- SafeTone 2.0 hearing protection – PeakStop™, IntelliTone™ 2.0, and speech-level normalization guard against sudden spikes and long-term exposure.
- 13-hour talk time – Rechargeable lithium-ion battery with quick USB-C charging (80 % in 60 minutes) plus user-replaceable battery option.
- Busylight do-not-disturb – Visual indicator tells colleagues you’re on a call so interruptions stay away.
- UC or Microsoft Teams ready – Choose the exact certification you need; Teams models include dedicated button and purple notification pulse on the adapter.
Technical Specifications
| Category | Detail |
|---|---|
| Form Factor | Mono on-ear headband |
| Wireless Technology | DECT |
| Connectivity | USB-A or USB-C via Link 400 adapter variants |
| Talk Time | Up to 13 hours (busylight off) |
| Weight | 57 g / 2.01 oz |
| Speaker Frequency | 40 Hz – 16,000 Hz |
| Microphone | Noise-cancelling ECM Uni-Directional + Analog MEMS |
| Hearing Protection | PeakStop™, SafeTone™ 2.0, EU Noise at Work |
| Security | Exceeds DECT Security Level C (FIPS 140-2) |
| Battery | Rechargeable Li-ion, user-replaceable |
| Charging | USB-C, 90 min full charge |
| Busylight | Yes |
| Certifications | UC / Microsoft Teams (variant dependent), Zoom, Google Meet, Works With Chromebook |
| Warranty | 2 years |
Who This Is For
- Hybrid professionals spending most of the day on calls or virtual meetings
- Contact-center and customer-support teams needing reliable, secure audio
- IT managers deploying or refreshing UC/Teams headsets across offices and remote workers
- Small businesses to enterprises that want one headset that just works—plug-and-play with no software headaches
Frequently Asked Questions
What’s the difference between UC and MS variants?
UC works with all major platforms; MS is fully Microsoft Teams certified with dedicated button and notifications.
Can I walk around the office without dropping calls?
Yes—the DECT connection stays rock-solid up to 150 m / 490 ft line-of-sight.
Is the battery replaceable?
Absolutely—easy user-replaceable battery means no downtime.





