Plantronics CS510 Wireless Headset (Renew) Cisco This key expansion module adds

This key expansion module adds 14 physical keys with access to 14 additional keys

including:

the Cisco Aironet 1850 Series delivers industry-leading performance for enterprise and service provider markets via enterprise-class 4x4 MIMO

the 6869 offers a large 4

Touch screen

Plantronics CS510 Wireless Headset (Renew) Cisco This key expansion module addsPlantronics CS510 Wireless Headset Refurbished with a 1 Year Warranty Note: These units do NOT work with a computer or USB. 1. 9 GHz Cordless Headset DECT 6. 0 Technology DECT Security certified Hands Free Up to 350 Feet One Touch Call Answer End Volume, Mute & Flash Controls Conferencing Up To 4 Headsets Efficient Adaptive Power System CAT iq Technology