This is the Plantronics CS55 and Plantronics HL10 + Plantronics CS55 Neckband and Plantronics in-use busy light combined into a Premium Bundle package. Plantronics CS55 wireless headset together with the Plantronics HL10 lifter allows you the convenience to roam up to 300 feet. When you’re away from your desk, either answering or ending a call with the touch of a button.

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. Retail price $424.90

Features:

• New! Enhanced 1.9 GHz DECT frequency and noise-canceling microphone
• 10 hours of hands-free talk time, 50 hours of standby time.
• 64-bit digital encryption
• Lithium Ion Polymer battery
• Up to 300 feet roaming distance from office phone
• Fully recharge the headset in less than three hours. 80% recharged in 1.5 hours
• comes with both over-the-ear and over-the-head wearing attachments.
• Quickly mute the microphone with the touch of a button
• Answer and end calls when you’re away from your desk with the touch of a button (HL10)
• This package includes Plantronics CS55, Plantronics HL10 lifter, on-line busy indicator light, and Plantronics CS55 behind-the-head neckband all in one package

ATTENTION: The HL10 is a mechanical device that sits on your telephone between the phone's handset-receiver and your phone's speaker. At the touch of a button the lifter actually takes the receiver off the hook (see picture) and answers the ringing line for you. NOT compatible with all phones (call for assistance)  

IMPORTANT:  Plantronics CS55 is NOT compatible with cordless telephones (Try the CS55H).  The following functions can not be performed remotely: transfer calls, switch lines, dial a number, put call on hold. You can perform all of these functions while using the Plantronics CS55EX, but you must do so by pressing the appropriate buttons on your telephone when back at your desk.