Choosing between the Jabra BIZ 2400 II and the Jabra Engage 45 SE? Here's how they differ on audio and price, and which one fits your room.

Short answer: pick the BIZ 2400 II if you want the one that costs less. Pick the Engage 45 SE if you want the one that runs on battery, so it moves between rooms.
Side by side
| BIZ 2400 II | Engage 45 SE | |
|---|---|---|
| Price | $287 | $292 |
| Talk time | — | Stereo & Mono up to 13 hours; Convertible up to 9 hours |
| Weight | — | Stereo 83g / Mono 57g / Convertible 21g |
| Warranty | — | 1 year North America |
| Form factor | Headband (duo); headband, earhook or neckband (mono 3-in-1) | Stereo/Mono on-ear headband; Convertible earhook/headband |
| Speaker | Wideband up to 4.5/6.8 kHz (QD) | — |
| Microphone | Breath-resistant, noise-cancelling | — |
| Hearing protection | PeakStop, Noise@Work, acoustic shock, G616 compliant | — |
| Boom arm | 360° flexible spin | — |
| Ear cushions | Large leatherette, headband padding | — |
| Connections | QD (requires Jabra Link cord) | Deskphone only; Wireless technology: DECT |
Specs are Jabra's published figures. Prices can change.
The key differences
- Power: the BIZ 2400 II runs on USB bus power; the Engage 45 SE on battery or USB.
Which should you buy?
- Choose the BIZ 2400 II if you want the one that costs less. See the BIZ 2400 II
- Choose the Engage 45 SE if you want the one that runs on battery, so it moves between rooms. See the Engage 45 SE
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Still deciding? Read the BIZ 2400 II guide and the Engage 45 SE guide, see BIZ 2400 II alternatives and Engage 45 SE alternatives, compare them interactively, or send us your room details for a recommendation.
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