AT&T TL7610 DECT 6.0 Digital Cordless Headset: * For use with Corded or Cordless 1-Line and 2-Line Telephones * Works with Multi-Line Business Systems * DECT 6.0 Digital Technology * Unsurpassed Range--up to 500 feet * Lightweight and Comfortable Design * Works with Corded or Cordless 1-Line and 2-Line Phones * Works with Multi-Line Business Systems * Expandable to 2 Headsets (uses TL7600--sold separately) * Sound Level Protection * Conference Capability--up to 2 Headsets * Multiple Installation Options for Home or Office Use * Wirelessly Pair to 2008/2009 AT&T DECT 6.0 CL & TL Series Cordless Products * Headset Volume Control * Mute * Multiple Wearing Styles--Over the Ear, Over the Head or Behind the Neck Style * Optional Handset Lifter (TL7000--sold separately) * Optional Remote Dial Pad Works with Most Phone Installations (TL7601--sold separately) * Dual Color Lighted In-Use Indicator * One-Button Answer * Auto Off