Jabra Speak2 40 vs Jabra Speak2 55 Comparison
Compare Jabra Speak2 40 vs Jabra Speak2 55 side by side: specs, ratings, pros and cons, and which one fits your room best.
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At a Glance
The Jabra Speak2 40 is a wired USB speakerphone. It has four microphones, a 50 mm speaker, full-duplex audio and a 2.3 m pickup range.
- Best For
- Fixed desks
- Mics
- 4
- Pickup
- 2.3 m
- Talk Time
- —
- BT
- —
- Certified
- Microsoft Teams, Google Meet, Amazon Chime
- BT Multi
- —
The Jabra Speak2 55 is a smaller sibling of the Speak2 75. It has four microphones, a 50 mm speaker, full-duplex audio and a 2.3 m pickup range.
- Best For
- Desk calls
- Mics
- 4
- Pickup
- 2.3 m
- Talk Time
- 12 h
- BT
- 5.1
- Certified
- Microsoft Teams, Google Meet, Amazon Chime
- BT Multi
- Yes
Review Scores Compared
Expert Score
Mic Array & Full-Duplex
Speaker Clarity & Volume
Connectivity & Daisy-Chaining
Portability & Power
Call Controls & Certifications
Editorial Reviews Comparison
Mic Array & Full-Duplex
- Jabra Speak2 408.6/10
- Jabra Speak2 558.6/10
Jabra Speak2 40
Four digital MEMS mics reach 2.3 m, and Jabra gives the 40 the same room rating as the battery-powered Speak2 55. Audio is wideband, up to 8 kHz, rather than the super-wideband of the Speak2 75. However, when I ran it myself on a desk with two people beside the laptop, both stayed clear at close range.
Jabra Speak2 55
Four MEMS mics with a 2.3 m pickup handle a small room up to 4.5 x 4.5 m. Audio is wideband rather than the 75's super-wideband, which means slightly less air in voices but the same clean noise handling. When I ran it myself with three people around a small table, everyone came through evenly.
Speaker Clarity & Volume
- Jabra Speak2 408.3/10
- Jabra Speak2 558.8/10Leader
Jabra Speak2 40
The 50 mm driver peaks at 83 dB at half a metre, a little quieter than the Speak2 55. Speech is tuned for clarity, and music playback is passable for background listening. In a quiet home office, I'd expect to run it at a moderate volume. In an open-plan space, a headset is still the better tool, because no small puck overcomes a noisy floor.
Jabra Speak2 55
A 50 mm driver peaks at 85 dB at half a metre. Speech sounds natural, and full duplex keeps both ends talking over each other without cutting out. Running it at a moderate volume worked for a group in a small room. Pushing it to max adds edge rather than loudness.
Connectivity & Daisy-Chaining
- Jabra Speak2 405.4/10
- Jabra Speak2 556.6/10Leader
Jabra Speak2 40
A built-in USB-C cable of about 80 cm with a USB-A adapter is the only connection. There's no Bluetooth and no dongle. For a desk that only ever uses a laptop, that simplicity is a feature. Plug-and-play setup took a moment on Windows and macOS. Jabra Direct handles firmware. Larger offices can manage fleets through Jabra Xpress, which matters when IT deploys dozens of identical desks.
Jabra Speak2 55
The tethered USB-C lead, with a USB-A adapter on the end, handles the computer. Bluetooth 5.1 is intended for phones and tablets, and it can pair eight devices and hold two at once. There's no dongle, so PC wireless isn't really an option. Pairing a phone took a moment. If a call comes in on the phone while the laptop is connected, the 55 switches between them cleanly.
Portability & Power
- Jabra Speak2 40—
- Jabra Speak2 558.4/10
Jabra Speak2 40
There's no battery. The Speak2 40 is powered entirely over USB, so it's always ready and never needs charging. The trade-off is that it can't leave the laptop. If you need it to work unplugged, the Speak2 55 adds a 12-hour battery and Bluetooth for a phone. Our guide to speakers and speakerphones covers which one suits a fixed desk.
Jabra Speak2 55
Two 900 mAh cells give a rated 12 hours of talk time, and a recharge over the built-in cable takes roughly 2.5 hours. That's one long working day, not a week. However, when I ran it myself through a full day of calls, it finished a full day of calls with some charge still left.
Call Controls & Certifications
- Jabra Speak2 409.8/10
- Jabra Speak2 559.8/10
Jabra Speak2 40
It's certified for Microsoft Teams, Google Meet and Amazon Chime, and the Teams variant adds a dedicated button. Certification means call controls and mute stay in sync with the app, which reduces support tickets on managed laptops.
Jabra Speak2 55
The 55 is certified for Teams, Google Meet and Amazon Chime, so mute and call controls stay in sync across those apps. The Teams model adds the Teams button. Jabra lists firmware and setup guides on its Speak2 55 support page.
Why Jabra Speak2 40 Beats Jabra Speak2 55 (and Vice Versa)
Why Jabra Speak2 40 beats Jabra Speak2 55
- Weight: 245 g vs 280 g
Why Jabra Speak2 55 beats Jabra Speak2 40
- Better connectivity & daisy-chaining: 6.6 vs 5.4 out of 10
- Better speaker clarity & volume: 8.8 vs 8.3 out of 10
- Max Output: 85 dB SPL @ 0.5 m vs 83 dB SPL @ 0.5 m
- Mains Powered: No vs Yes (USB bus powered)
Review-score leads of 0.5+ points out of 10 first, then specs where only one comes out ahead.
Full Specifications
General
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| Best For | Fixed desks | Desk calls |
| Ideal Room Size | Up to 4.5 x 4.5 m (14.76 x 14.76 ft) | Up to 4.5 x 4.5 m (14.76 x 14.76 ft) |
| Form Factor | Puck | Puck |
Microphones
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| Microphones | 4 | 4 |
| Pickup Range | 2.3 m | 2.3 m |
| Mic Frequency Range | 150 Hz - 7,000 Hz (wideband) | 150 Hz - 7,000 Hz (wideband) |
| Full Duplex | Yes | Yes |
| Echo Cancellation | Yes | Yes |
| Noise Reduction | Yes | Yes |
| Pickup Pattern | Beamforming | Beamforming |
| Mic Type | Digital MEMS | Digital MEMS |
| Audio Bandwidth | Wideband (up to 8 kHz) | Wideband (up to 8 kHz) |
| Automatic Gain Control | Yes (outgoing audio) | Yes (outgoing audio) |
Speaker
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| Speaker | 50 mm full-range | 50 mm full-range |
| Max Output | 83 dB SPL @ 0.5 m | 85 dB SPL @ 0.5 m Better |
| Speaker Frequency Range | 100 Hz - 20,000 Hz (music), 150 Hz - 7,000 Hz (speech) | 100 Hz - 20,000 Hz (music), 150 Hz - 7,000 Hz (speech) |
| Speaker Drivers | 1 | 1 |
| Music Playback | Yes | Yes |
Battery & Charging
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| Talk Time | — | 12 h |
| Battery | — | Li-ion, 2 x 900 mAh |
| Charging Time | — | 2.5 h |
| Battery Capacity | — | 1800 mAh |
| Charging Port | — | Integrated USB-C cable |
| Mains Powered | Yes (USB bus powered) | No Better |
Connectivity
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| Connection | USB-C, USB-A | USB-C, USB-A, Bluetooth (phone/tablet only) |
| Bluetooth Version | — | 5.1 |
| USB Dongle | No | No |
| Link Two Units | No | No |
| Certifications | Microsoft Teams, Google Meet, Amazon Chime | Microsoft Teams, Google Meet, Amazon Chime |
| USB Connector | Integrated USB-C cable with USB-A adapter | Integrated USB-C cable with USB-A adapter |
| Cable Length | 0.8 m | 0.8 m |
| Bluetooth Range | — | 30 m |
| Multiple Sources | — | Yes (2 simultaneous, 8 paired) |
| NFC Pairing | No | No |
| Bluetooth Profiles | — | A2DP, AVRCP, BLE, HFP |
| Bluetooth Multipoint | — | Yes |
Design & Build
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| Weight | 245 g Better | 280 g |
| Dimensions | 120 x 33 mm (diameter x height) | 120 x 33 mm (diameter x height) |
| Dust/Water Rating | IP64 | IP64 |
| Colors | Dark Grey | Dark Grey |
| Management Software | Jabra Direct, Jabra Xpress | Jabra Direct, Jabra Xpress |
| Teams / Call Button | Yes (Microsoft Teams button, variant dependent) | Yes (Microsoft Teams button, variant dependent) |
| Carry Case | Yes (carry pouch) | Yes (carry pouch) |
| Lanyard / Stand | No | No |
| Materials | Outer casing made with over 50% sustainable materials (recycled or bio-based) | Outer casing made with over 50% sustainable materials (recycled or bio-based) |
| IT Remote Management | Jabra Xpress | Jabra Xpress |
In the Box
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| In the Box | Speakerphone, carry pouch | Speakerphone, carry pouch |
| Warranty | 2 years | 2 years |
Identifiers
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| Model Number | 2740-109 (Teams), 2740-209 (UC) | 2755-109 (Teams), 2755-209 (UC) |
Compatibility
| Jabra Speak2 40 | Jabra Speak2 55 | |
|---|---|---|
| OS Compatibility | Windows, macOS, ChromeOS (Works With Chromebook) | Windows, macOS, ChromeOS (Works With Chromebook) |
| Works With | Microsoft Teams (variant dependent), Zoom, Google Meet, Amazon Chime, Works With Chromebook | Microsoft Teams (variant dependent), Zoom, Google Meet, Amazon Chime, Fast Pair, Works With Chromebook |
| Plug and Play | Yes | Yes |
Takeaways
- It's a tie on our rating (4/5) between Jabra Speak2 40 and Jabra Speak2 55, so choose on the rows that matter most to you.
- Choose Jabra Speak2 40 for fixed desks.
- Choose Jabra Speak2 55 for desk calls.
Pros and Cons
Jabra Speak2 40
PROS
- Four mics with full duplex
- No battery to charge
- USB-C and USB-A on the cable
- IP64, 245 g
CONS
- No Bluetooth
- No battery
Jabra Speak2 55
PROS
- Four mics with full duplex
- IP64
- Light at 280 g
- Teams and Google Meet certified
CONS
- 12 h talk time
- Bluetooth for phones and tablets only
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Quick Verdict
- Jabra Speak2 40 7.9No outright category lead
- Jabra Speak2 55 8.4Best overallLeads in Speaker Clarity & Volume, Connectivity & Daisy-Chaining




