Jabra Engage 55 Convertible UC Wireless ANC DECT Headset USB-C
PRODUCT DESCRIPTION
Jabra Engage 55 Convertible UC Wireless ANC DECT Headset USB-C (9555-430-111) - 2 Years Local Warranty
No Longer Available. New or Similar items below:
Jabra Engage 65 Convertible SE Wireless Headset + Charging Base (9655-553-117)
Jabra Engage 55 Convertible UC USB-C — Secure DECT Wireless Headset for Singapore Offices
The Jabra Engage 55 Convertible UC Wireless DECT Headset USB-C (9555-430-111) is a professional-grade wireless headset built for desk-based call handling in offices, contact centres and hybrid workplaces across Singapore. Instead of Bluetooth, it uses DECT wireless with the included Jabra Link 400 USB-C adapter, giving you a stable, interference-free connection with up to 150 m / 490 ft of range — walk to the printer, a colleague's desk or the meeting room without dropping your call.
Noise-Cancelling Microphone for Crystal-Clear Calls
A uni-directional ECM noise-cancelling microphone filters out surrounding office noise so callers hear your voice, not the room. Wideband speakers are optimised for speech clarity, and Jabra SafeTone™ 2.0 with PeakStop™ provides all-day acoustic protection that meets EU Noise at Work, G616 and OSHA requirements — important for compliance-conscious contact centres.
Military-Grade DECT Security (Level C, 256-bit Encryption)
Security-conscious organisations choose DECT for a reason: the Engage 55 is DECT Security Level C certified and protects conversations with FIPS-grade 256-bit encryption between headset and adapter. For finance, government, healthcare and legal teams in Singapore that handle sensitive calls, this is a level of wireless security consumer Bluetooth headsets cannot match.
Three Wearing Styles, All-Day Battery
At just 21 g, the Engage 55 Convertible is Jabra's lightest Engage wearing style — and it ships with earhook, headband and neckband options in the box so every user can wear it their way. Talk time is up to 9 hours with the busylight off, with easy in-call charging over USB-C so a quick top-up never interrupts your queue.
Certified for Leading UC Platforms
This UC variant works with all leading Unified Communications platforms, and the integrated busylight signals to colleagues when you are on a call. The Engage 55 is certified/compatible with Amazon Chime, Google Meet, Microsoft Teams (SKU specific), Zoom, and is Works With Chromebook certified. Manage firmware and settings with Jabra Direct or deploy at scale with Jabra Xpress.
Jabra Engage 55 Datasheet — Technical Specifications
Verified specifications from the official Jabra Engage 55 datasheet and technical specification sheet for the Convertible UC USB-C variant (9555-430-111).
General
| Product Name | Jabra Engage 55 Convertible UC Wireless ANC DECT Headset USB-C |
| Part Number | 9555-430-111 |
| Product Category | Professional wireless DECT office headset |
| Form Factor | Convertible — wear as earhook, headband or neckband (all three included) |
| Colour | Black |
| Headset Weight | 21 g |
| Warranty | 2 Years Local Warranty (Singapore) |
Audio & Hearing Protection
| Speaker Bandwidth — Music Mode | 40 Hz – 16,000 Hz |
| Speaker Bandwidth — Speak Mode | 150 Hz – 6,800 Hz |
| Audio Features | Wideband speech-optimised speakers, sidetone |
| Hearing Protection | Jabra SafeTone™ 2.0 (PeakStop™, acoustic shock protection, speech level normalisation, IntelliTone™ 2.0); EU Noise at Work, G616, OSHA compliant |
Microphone
| Microphone Type | ECM uni-directional noise-cancelling microphone |
| Microphone Bandwidth | 100 Hz – 7,300 Hz |
| Noise Cancellation | Noise-cancelling microphone (passive; no active noise cancellation on speakers) |
Connectivity & Security
| Wireless Technology | DECT (not Bluetooth) |
| Wireless Range | Up to 150 m / 490 ft (open space) |
| USB Adapter | Jabra Link 400 DECT USB adapter (USB-C) |
| Security | DECT Security Level C certified; FIPS-grade 256-bit encryption |
| Conferencing | Pair 1 headset to your computer; conference in up to 3 additional Engage 55 headsets on a call |
| Busylight | Integrated busylight (call status indicator) |
Battery
| Talk Time (busylight off) | Up to 9 hours |
| Battery Type | Rechargeable lithium-ion |
| User-Replaceable Battery | No (built-in) |
| Charging | In-call charging via USB-C cable; optional charging stand available |
| Sleep Mode | Yes |
Design & Environment
| Operating Temperature | -10°C to 55°C |
| Storage Temperature | -5°C to 45°C |
| Packaging Dimensions (W×H×D) | 173.5 × 203 × 63 mm |
Compatibility & Software Support
The Jabra Engage 55 connects to Windows and macOS computers through the included Jabra Link 400 DECT USB adapter (USB-C) — simple plug-and-play, with no Bluetooth pairing required.
| Platform Variant | UC (Unified Communications optimised) |
| Certified / Compatible Platforms | Microsoft Teams (MS SKUs), Zoom, Google Meet, Amazon Chime, Works With Chromebook; works with all leading UC platforms |
| Teams Features (MS variant) | — (this is the UC variant; choose an MS SKU for certified Teams features) |
| Device Management | Jabra Direct (personal settings & firmware updates); Jabra Xpress (mass deployment); Engage+ desktop app for real-time call insights |
| Connection | USB-C (Jabra Link 400 DECT adapter included) |
Package Contents & Engage 55 Ordering Information
In the box: Engage 55 Convertible headset, earhook, headband and neckband wearing styles, eargels, Jabra Link 400 USB-C DECT adapter, USB charging cable, travel pouch, safety information and warranty leaflets.
Engage 55 Convertible variants
| Variant | Part Number |
| Jabra Engage 55 Convertible UC USB-C | 9555-430-111 |
| Jabra Engage 55 Convertible MS USB-A | 9555-450-111 |
| Jabra Engage 55 Convertible MS USB-C | 9555-470-111 |
Engage 55 Mono variants
| Variant | Part Number |
| Jabra Engage 55 Mono UC USB-A | 9553-410-111 |
| Jabra Engage 55 Mono UC USB-A with Charging Stand | 9553-415-111 |
| Jabra Engage 55 Mono UC USB-C | 9553-430-111 |
| Jabra Engage 55 Mono UC USB-C with Charging Stand | 9553-435-111 |
| Jabra Engage 55 Mono MS USB-A | 9553-450-111 |
| Jabra Engage 55 Mono MS USB-C | 9553-470-111 |
| Jabra Engage 55 Mono MS USB-C with Charging Stand | 9553-475-111 |
Engage 55 Stereo variants
| Variant | Part Number |
| Jabra Engage 55 Stereo UC USB-A | 9559-410-111 |
| Jabra Engage 55 Stereo UC USB-A with Charging Stand | 9559-415-111 |
| Jabra Engage 55 Stereo UC USB-C | 9559-430-111 |
| Jabra Engage 55 Stereo UC USB-C with Charging Stand | 9559-435-111 |
| Jabra Engage 55 Stereo MS USB-A | 9559-450-111 |
| Jabra Engage 55 Stereo MS USB-A with Charging Stand | 9559-455-111 |
| Jabra Engage 55 Stereo MS USB-C | 9559-470-111 |
| Jabra Engage 55 Stereo MS USB-C with Charging Stand | 9559-475-111 |
The Engage 55 has been succeeded by the Jabra Engage 55 SE — current replacement stock available from SourceIT:
| Variant | Part Number |
| Jabra Engage 55 SE Mono MS USB-A | 9653-450-111 |
| Jabra Engage 55 SE Mono MS USB-C | 9653-470-111 |
| Jabra Engage 55 SE Mono UC USB-A | 9653-410-111 |
| Jabra Engage 55 SE Mono UC USB-C | 9653-430-111 |
Datasheet & Downloads
Frequently Asked Questions — Jabra Engage 55
Q: What is the difference between the Engage 55 MS and UC variants?
A: MS variants are Microsoft Teams certified — the Link 400 adapter shows Teams notifications and the headset is tuned for the Teams client — while UC variants are optimised for platforms such as Zoom, Google Meet and Amazon Chime. Both work with all major softphones; choose MS if your organisation runs Microsoft Teams.
Q: Should I choose the Convertible, Mono or Stereo version?
A: The Convertible (21 g) is the lightest option with three wearing styles (earhook, headband, neckband) but a built-in battery and up to 9 hours talk time. The Mono (57 g) and Stereo (83 g) headband versions offer up to 13 hours talk time and user-replaceable batteries. All Engage 55 variants share the same DECT audio engine and security.
Q: Is this product still available? What replaces the Engage 55?
A: The original Engage 55 is end-of-life and no longer available new. Its direct successor is the Jabra Engage 55 SE, which SourceIT stocks in Mono and Stereo, UC and MS, USB-A and USB-C variants. If you need DECT with even higher density and a desk-phone base, consider the Jabra Engage 65 or Engage 75 series.
Q: Does the Engage 55 have Active Noise Cancellation (ANC)?
A: No. Per the official Jabra datasheet, the Engage 55 uses a noise-cancelling microphone (uni-directional ECM) to remove background noise for your callers, plus passive wearing-style isolation for you. It does not have active noise cancellation on the speakers — if you need ANC, see the Jabra Evolve2 series in our catalogue.
Q: How long does the battery last, and can I charge while on a call?
A: Up to 9 hours of talk time (busylight off) from the built-in lithium-ion battery. The headset supports easy in-call charging over the USB-C cable, and sleep mode stretches standby between shifts.
Q: Can it connect to my mobile phone or via Bluetooth? What about multiple headsets on one call?
A: The Engage 55 is a pure DECT headset — it connects to your computer through the included Jabra Link 400 USB adapter and does not use Bluetooth or pair with mobile phones. DECT gives you up to 150 m of range and Security Level C with 256-bit encryption. You can conference in up to 3 additional Engage 55 headsets on the same call for training or supervision.
Q: Does the Jabra Engage 55 come with a local Singapore warranty?
A: Yes. Every Jabra Engage 55 sold by SourceIT comes with 2 years local Singapore warranty and a GST invoice.
