The Plantronics 83681-01 is an Electronic Hook Switch that communicates electronically with the phone, eliminating the need for a HL10 lifter.

Key Features:

• Electronic Hookswitch Cable APV-6A
• Communicates Electronically w/ Phone
• Eliminates the Need for a HL10 Lifter

Compatibe with:

• Plantronics CS50
• Plantronics CS55
• Plantronics 510S
• Plantronics SupraPlus Wireless
• Plantronics CS70N