Cisco CS-MIC-TABLE-E=. Type: IP phone microphone, Microphone sensitivity: -34 dB, Microphone frequency: 80 - 20000 Hz. Connectivity technology: Wired, Device interface: Euroblock. Product colour: White, Cable length: 9 m, Compatible products: Room Kit, Room Kit Plus, Room Kit Pro Room 55, Room 55 Dual, Room 70, Room 70 G2 SX10, SX20, SX80.... Power source: DC, Operating voltage: 9 V. Height: 10.9 mm, Diameter: 6.39 cm, Microphone weight: 126 g