Key Features:

Double earpiece – help you concentrate with the phone conversation.
Noise-cancelling microphone — filters out unwanted background noise.
Kevlar Tough – Cords made with Kevlar help to deliver performance and value to end user by providing excellent robustness, fatigue resistance and durability.
Wideband Audio – High-definition wideband, HD Voice allowing crystal clear communication.
Unbreakable FreeSpin Boom Arm – Flexible 360° swiveling boom arm allowing customize microphone location without breaking it.
Air Shock microphone – Microphones placed too close to the mouth picks up respiratory noise. The Jabra BIZ 2300 Duo microphone is designed aerodynamically, with many small perforations and includes a foam lining that reduces the penetration of air shocks to the microphone.
Foam ear cushions
Requires a Jabra Link 860 amplifier (or GN1200 smart cord)