Polycom Cx5500/5100 EXT Microphone Kit

POLYCOM Video Cx5500/Cx5100 Ext. Mic Kit, in Cludes Pair of Mic and Cables - Part Number 2215-65951-001

Shure SM57 Pro XLR Dynamic Microphone - Professional Studio & Live Performance Cardioid Mic for Instruments, Recording for Drums, Percussion, & Instrument Amplifier Miking (SM57-LC)