Clear sound quality, ideal for the most demanding environments such as telemarketing and call centres Intelligent flexible rubber boom with an ultra noise cancelling microphone to reduce background noise Stylish design, lightweight, durable and comfortable for all-day use  Acoustic Shock Protection circuit Binaural design Adjustable headband Replaceable soft leatherette ear pad Quick disconnect cord for the convenience of walking away without removing the headset Grandstream/Digium compatible Quick Disconnect 

Buy with TT-QDRJ9 or TT-QDUSB-2. Not Compatible with Digium