Flexible Rotation Arm: Microphone arm of the wired telephone headset can rotates by 330 degrees freely, wearing on either ear. And the headphones is scalable for different needed.Noise Cancellation Headset: Noise cancellation sponge, which can get superior quality sound and get rid of 90% noise so as to perfectly and truly present the sweet voice of the telephone operator.FSK/DTMF Caller ID Display: The phone number will be displayed on call center dialpad when the phone rings. You could decide the dialer is ring or silent to avoid some embarrassment.Comfortable Wearing & Space saving: Super-soft ear cushion provides all day comfort. The phone with headset would be a great partner for your call center affair, phone sales, telephone counseling services, ect. Headset can be hung on the bracket for space saving.