*2.5MM TELEPHONE HEADSET: 【NOT for Cell Phones and Computers】This telephone headset Compatible with Panasonic Cordless phones, AT&T VTech RCA Cisco SPA Uniden Grandstream Polycom Gigaset Clarity Zultys Cortelco landline phones and most Cordless Dect phones with standard 2.5MM headset jack.. SEE MORE COMPATIBLE PHONE LIST IN DESCRIPTION or CONTACT US. *Digital Stereo Sound: The 2.5mm jack headset incorporates optimized wideband audio technology and Digital Signal Processing (DSP)，provide enhanced digital audio for Call Center, Telephone Counseling Services, Insurance, Hospitals, Office and Home. *Rotating Noise Canceling Mic: The office phone headset equipped with a rotatable microphone，minimizes unwanted background noise for clear conversations. Enjoy superior calls in high noise environments. *All-Day Comfort: Rigorously tested for stability and comfort on a wide range of ear shapes. The 2.5mm plug headset with microphone with skin-friendly ear pads and super lightweight design ensure you focus on your talk with lasting wearing comfort. *Easy to Controls: Stay in control with the in-line volume control and integrated mute button. Easily adjust your headset settings without interrupting your call, providing a seamless and professional communication experience. telephone headset telephone headsets headset for phone phone headsets for office phones phone headset head phones with microphones office phone headset phone headset with mic telephone headsets for office phones