Application
PC with SwyxIt!, Swyx Desktop for macOS
PC with SwyxIt!, Swyx Desktop for macOS, SwyxPhone*

Connectivity
USB: Jabra BIZ 2300 USB, Jabra Evolve 40 UC
QuickDisconnect (QD): Jabra BIZ 2300

Loudspeaker
Jabra BIZ 2300 Mono
Jabra BIZ 2300 USB Mono
Jabra BIZ 2300 Stereo
Jabra BIZ 2300 USB Duo

Jabra Evolve 40 UC Stereo

Acoustic
HD-Audio, NoiseCancelling, PeakStop

Wearing style
Headband

Features
In-line buttons on the cord (Hook, Mute, Volume) (USB variant) (Jabra BIZ 2300)
Busylight, leatherette on-ear cushions, call control, hi-fi Sound (Jabra Evolve 40 UC)

* only Quick Disconnect-variant (QD)