BOSCH Plena PLE1CS Call Station Specs: Phantom power supply Voltage range 12 to 48 V Current consumption <8 mA Performance: Sensitivity 0.7 mV @ 85 dB SPL (2 mV/Pa) Maximum input sound level 110 dB SPL Distortion <0.6% (maximum input) Input noise level (Equiv.) 28 dB SPLA (S/N 66 dBA ref. 1 Pa) Frequency response 100 Hz to 16 kHz Output impedance 200 ohm Mechanical: Base dimensions (H x W x D) 40 x 100 x 235 mm (1.57 x 3.97 x 9.25 in) Weight Approx. 1 kg (2.2 lb) Color Charcoal with silver Stem length with mic. 390 mm (15.35 in) Cable length 2 m (6.56 ft) Environmental: Operating temperature -10 ºC to 45 ºC (14 ºF to 113 ºF) Storage temperature -40 ºC to 70 ºC (-40 ºF to 158 ºF) Relative humidity <95% # Check Call Station