Coodio Cordless Dect Phone Headset [Mute Switch] [Volume Control] Monaural Headphone With Mic Microphone [Noise Cancelling] For Panasonic Uniden Cordless DECT Phones with 2.5mm Headset Jack - Silver Hands-free, built-in volume control and mute switch, provides all day comfortable, clarity, durability and convenience for cordless phone. Boom-style noise cancelling microphone adjustable for optimum level For very long calls, you can rotate the headset, as the headset is designed for both left-ear and right-ear listening. Excellent for use with Call Center Service, Telephone Counseling Services, Insurance, Hospitals, Banks, Telecom Operators, Enterprises, Home cordless phones. This headset attaches to the cordless handset's 2.5mm headset jack, compatible with any cordless DECT phones with 2.5mm headset jack.