The Plantronics CS55 wireless headset system combines the clarity of traditional corded technology with the mobility of wireless, so employees can move around the office to wherever business takes them—without interrupting or missing a call. Continuing our tradition as a technology leader, Plantronics presents CS55 as the first headset in the United States to implement 1.9GHz UPCS voice-dedicated wireless technology. With the included Plantronics HL10 handset lifter, remotely taking or ending a call is as simple as pressing a button. Includes the Plantronics HL10 handset lifter for remote call answer/end capability.