Call Center Phone, Bizoerade Hands-free Call Center Noise Cancellation Binaural Corded Headset Telephone Desk Phone Headphones Headset w/ PC Recording Function Flexible Rotation Arm: Microphone arm can rotates by 330 degrees freely at which position most fits you, suitable for wearing on either ear. Noise Cancellation Microphone: Equipped with noise canceling microphone, it can increase the voice clarity for superior high quality sound and screen 90% background noise so as to perfectly and truly present the sweet voice of the telephone operator. FSK/DTMF Caller ID Display: The dialer can ring or silent when receive incoming calls as well the phone number will be displayed. Everything included so you can just plug into the wall telephone port and you are ready to make and receive phone calls. Easy to Setup: Connects to existing standard telephone jack Durable construction and rigid design for greater longevity. Green Backlight in-use, With LED indication, Noise cancellation