The Speak 410 is USB-only with no battery; the Speak 510 adds Bluetooth and a battery for 1-4 people; the Speak 710 is larger, louder and suits up to about 6 people; the Speak 750 is the 710's successor with full-duplex audio and certified versions for Teams. If you're buying new today, the Jabra Speak 750 is still sold, while the 410 and 510 have been succeeded by the Speak2 series, such as the Jabra Speak2 55 and Speak2 75.

Side-by-side
| Speak 410 | Speak 510 | Speak 710 | Speak 750 | |
|---|---|---|---|---|
| Connection | USB | USB + Bluetooth | USB + Bluetooth, Link 370 dongle | USB + Bluetooth, Link 370 dongle |
| Battery | None (USB powered) | Yes | Yes | Yes |
| Group size | 1-4 | 1-4 | Up to about 6 | Up to about 6 |
| Audio | Standard | Standard | Louder speaker | Full-duplex, louder speaker |
| Best for | Desk calls from a PC | Portable calls, laptop or phone | Small rooms, mobile teams | Small rooms, Teams users |
| Successor | Speak2 series | Speak2 series | Speak 750 | Speak2 75 / current |
Why full-duplex matters: with full-duplex audio, both sides can talk at the same time without the speakerphone clipping words, so conversations feel more natural. It was a headline upgrade of the 750 over the 710.
Jabra 510 vs 410
The only real difference is wireless. Both share the same puck-shaped design and microphone. The 510 adds Bluetooth for phones and laptops, plus a battery so it works away from a USB port. The 410 is cheaper and fine if it always stays plugged into one PC. If either is in your office already, both still work as basic USB speakerphones.
Jabra 510 vs 710
The 710 is a bigger speakerphone for small rooms. It has a larger speaker, picks up a wider group, and includes the Link 370 USB Bluetooth adapter for a stable wireless connection to a laptop. Choose the 710-class device if 4-6 people sit around a table. The 510 suits one or two people at a desk or on the road.
Jabra 510 vs 750
The 750 is the better device in almost every way: full-duplex audio, louder speaker, Link 370 adapter and Microsoft Teams certified versions with a Teams button. The 510 is smaller and lighter for travel. For a huddle room or a manager's office with regular group calls, choose the 750.
What to buy now
| If you'd have bought | Buy this today | Why |
|---|---|---|
| Speak 410 or 510 | Jabra Speak2 55 | Portable, 4 mics, USB and Bluetooth, full-duplex |
| Speak 710 | Jabra Speak 750 or Speak2 75 | Small-room audio with a USB Bluetooth adapter |
| Something for a 6-8 person room | Jabra Speak2 75 or Poly Sync 60 | More mics and pickup range |
All of these appear as standard USB audio devices, so they work with Teams, Zoom, Google Meet and other apps. For bigger rooms, a speakerphone is not enough; see best speakerphones and USB conference microphones.
Still have a 510? Our Jabra Speak 510 guide covers setup, firmware and reset. Browse the full Jabra lineup.
Not sure which speakerphone fits your room? Ask us and we'll match one to your space.
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