This is refurbished which carries a 90 day warranty. Using the latest wideband VoIP technology this Binaural Headset with Flexible Boom delivers the highest audio performance even in noisy environments. Overcome traditional challenges to deliver heightened speech clarity and lifelike fidelity. You will experience enhanced intelligibility and reduced miscommunication. Binaural headset offers over-the-head wearing comfort. Headset requires an adapter or audio processor (M22).