Sennheiser CEHS-CI 02 (EHS) USB cable for Cisco IP Phones - This Sennheiser EHS cable is compatible with these Sennheniser wireless headsets:

Sennhesier DW Office, DW Office ML, DW Office Phone, DW Pro 1, DW Pro 1 ML, DW Pro 1 Phone, DW Pro 2, DW Pro 2 ML, DW Pro 2 Phone, SD Office, SD Office ML, SD Pro 1, SD Pro 1 ML, SD Pro 2, SD Pro 2 ML and D 10 Phone.

This EHS cable works with the following Cisco IP phone models:

• Cisco: 8800 series, 9900 series and 8961
• Polycom: VVX 400, 500, 600 series
• AudioCodes: 450 HD
• Alcatel: 8000s series and 8018
• Snom: D300 series, D700 series and 700 series
• old part# 504533

For more information see Sennheiser CEHS-CO 02 datasheet and user guide