Jabra Evolve 20 SE, Mono, UC, Leatherettes

Bluetooth® device: No
DECT Device: No
NFC: No
Headset bandwidth: Wideband
Connection (mini jack, USB, etc): USB
Speaker Size: Yes – available as an accessory. Required for use with Jabra Evolve 40, Jabra Evolve 80, Jabra GN 1000, and Jabra devices when using the Jabra Link 360 Bluetooth adaptor.
Speaker sensitivity: 93.6dB SPL @1kHz
Speaker impedance: 32+/-4.8, @1.0kHz