Audio Conferencing Systems

Bosch PLM-8CS. Product type: Personal audio conferencing system, Product color: Black, Silver. Frequency range: 100 - 20000 Hz, Dynamic range: 97 dB, Total Harmonic Distortion (THD) + noise: 0.03%. Microphone color: Black, Microphone direction type: Cardioid. DC input voltage: 30 - 50 V. Width: 6.14" (156 mm), Depth: 5.51" (140 mm), Height: 1.97" (50 mm)