Panasonic KX-TCA430 For AT&T Phones Brand NewIncludes 90 Day Warranty The Panasonic KX-TCA430 headset for AT&T is designed for use with any cordless phone possessing a standard 2.5 mm jack. This device allows you totalk hands-free while you work. Its boom-style microphone adjusts easily to fit multiple users. The KX-TCA430 is reversible, lightweight, and delivers a comfortable fit that is sure to please any user. The headpiece fits securely around your head and folds down neatly for compact storage. With the lightweight headset you are able to move around with ease. KX-TCA430 Features: Over the Head Headset Easy Hands-Free Conversation Noise-Canceling Microphone (Reduces Background Noise) Adjustable Boom Works For Either Ear Volume Control w/ Mute Button Stable Adjustable Headband Standard 2.5mm Headset Plug