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.