Get the most from your headset by adding the ability to remotely answer & end calls. Lifter provides simple, one-touch answer / end operation using your headset's talk button. Easy-to-install-up & running in minutes. Compact, unobtrusive unit leaves no desktop footprint. Device is designed specifically for use with Plantronics cordless headset systems & is compatible with most standard desktop phones. For Use With: poly A20, CA10, CS10, CS50, S20; Accessory Type: Handset Lifter; Color(s): Black.