DESC: The Plantronics Avaya LKA10 is an innovative cordless headset system for Lucent and Avaya DEFINITY® and Merlin® phones. This unique hands-free solution allows users to take calls and make calls up to 150 feet from their desks with a full keypad on the pocket-size remote. The Avaya LKA10 includes a convertible headset that can be easily configured in an over-the-ear or over-the-head wearing style. Used with the optional automated headset lifter, calls can be answered remotely.