Application
PC with Swyx, Swyx Desktop for macOS or SwyxPhone*, Mobile** (Jabra BIZ 2400 II)
PC with Swyx, Swyx Desktop for macOS (Jabra Evolve 80 UC)

Connectivity
Quick Disconnect: Jabra BIZ 2400 II QD Mono, Jabra BIZ 2400 II QD Stereo
USB, Bluetooth: Jabra BIZ 2400 II USB Mono, Jabra BIZ 2400 II USB USB Stereo
USB: Jabra Evolve 80 UC

Loudspeaker
Jabra BIZ 2400 II QD Mono
Jabra BIZ 2400 II USB Mono
Jabra BIZ 2400 II QD Stereo
Jabra BIZ 2400 II USB Stereo
Jabra Evolve 80 UC Stereo

Acoustic
HD-Audio, NoiseCancelling, PeakStop (Jabra)

Wearing style
Headband

Features
Key parts in surgical steel for maximum strength, Ultra-strong Kevlar-reinforced cord (Jabra BIZ 2400 II)
Busylight, leatherette over-ear cushions, call control, hi-fi Sound, active noise cancelation (ANC) (Jabra Evolve 80 UC)

* only Quick Disconnect-variant (QD)
** only variants with Bluetooth connection