Avaya certified Jabra Biz 2300 Duo Binaural Headset Bundle for 1408 1416 2410 2420 4606 4610 4610SW 4612 4620 4620SW 4621 4621SW 4622SW 4624 4625SW 4630 4630SW 5410 5420 5610 5620 5621 5625 Bundle of 2 items - Jabra BIZ 2300 Duo and Avaya Interface Cable Noise-cancelling microphone - filters out unwanted background noise, with 270 rotation Flexible adjustment to the ear for optimal wearability, resulting in exceptional sound Built Contact Center Tough - Cords made with Kevlar help to deliver performance and value to end user by providing excellent robustness, fatigue resistance and durability. 2-year warranty- protects your headset investment by adding a full year to Jabras standard warranty