Bosch PRA-CSE Call station extension, Button key extension for a PRAESENSA call station (PRA-CSLD or PRA-CSLW), twelve configurable buttons with status indicators, Light ring around each button for selection confirmation, Multi‑color zone status indicaton.

Bosch PRA-CSLD Desktop LCD call station, Network‑connected, PoE powered, touch screen call station with gooseneck microphone, Desktop housing with gooseneck microphone, 4.3" full‑color capacitive touch screen, Graphical user interface for optimum user guidance and feedback, Dual OMNEO IP‑network connection and redundant Power over Ethernet, Nominal acoustic input level (configurable): 80 to 100 dB, SPL: Maximum acoustic input level: 120 dB SPL, Signal to Noise Ratio (SNR): > 70 dBA, Unidirectional, Frequency response: (+3 / -6 dB): 100 Hz to 14 kHz, Maximum sound pressure level, at 1 m: 75 dB SPL, Frequency range (-10 dB): 400 Hz to 10 kHz, IP30.

Bosch PRA-CSLW Wallmount LCD call station, Network‑connected, PoE powered, touch screen call station with hand‑held microphone, Wall mount housing with fixed hand‑held microphone and helix cable, 4.3" full‑color capacitive touch screen, Graphical user interface for optimum user guidance and feedback, Status and fault indicators for voice alarm purposes, Nominal acoustic input level (configurable): 85 to 105 dB SPL, Maximum acoustic input level: 120 dB SPL, Signal to Noise Ratio (SNR): > 73 dBA, Unidirectional, Frequency response: (+3 / -6 dB): 500 Hz to 8 kHz (noise cancelling), loudspeaker Maximum sound pressure level, at 1 m: 75 dB SPL, IP30.