Poly CA22CD-SC is a wireless PTT (push-to-talk) headset single channel with a PJ-7connector.  CA22CD-SC is designed to provide wireless encrypted communications and PTT functionality for mission critical radio dispatch applications such as police, fire stations. air traffic controllers.  This Poly CA22CD-SC Comes with extra lithium battery for 24/7 operation with the highest level military 256-bit encription available.  3X less latency PTT (Push-To-Talk) than other models

Key Features:

• PJ-7 connector
• Talk time up to 10 hours
• Wireless range: Line of sight up to 100 ft/30.5 m
• Military level FIPS 140-2 listed 256-AES encryption
• DECT 6.0  Operates in 1.92 - 1.93 Ghz 
• Two charging wells (a spare battery included)
• Battery recharge time: 2 hours to full, capacity 440mAh
• selectable locking/non-Locking operational PTT modes.
• Wideband 100 - 6800Hz
• Status LED lights for Power, Battery Charging and PTT
• Analog and USB connection ports on the base (micro USB cable sold seperately)
• Sending and receiving volume controls on the base
• Supported systems: Most manufacturers of Voice Communication Consoles, such as Frequentis, Indra, Sitti, Motorola, etc.
• Quick Disconnect™ provides compatibility with all Plantronics H series headsets

Old Poly part # 217100-01

New HP part # 8K774AA#ABA

For more information and specs see Poly CA22CD-SC datasheet and Poly CA22CD-SC user Manual

Note: Spare parts backward compatible (ex: battery pack, remote, etc.) from Plantronics CA12CD-S (or CA12CD) are not compatible with Poly CA22CD-SC.

*Important Note on Returns: Due to the manufactures policy, this is a special order item.  All Sales are FINAL.  It's not returnable, not refundable under any circumstance.  If it's defective, Plantronics/Poly will replace it for you under warranty