Sennheiser ADN C1 - Conference ; Meeting - Discussion Unit Digital - Gooseneck Microphone
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Behringer C-1 Condenser Corded Professional Microphone 4033653080187 | eBay
Sennheiser ADN IK1 Installation Kit for ADN D1 or ADN C1 (5-Pack)
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Sennheiser ADN Installation Kit for ADN D1 Delegate and ADN IK1