BOSCH LBB 4430 Call Station Basic Color Charcoal Humidity 15% to 90% External power supply 18 to 56 VDC Dimensions (H x W x D) 90 x 160 x 200 mm Weight 0.95 kg (2.1 lb) Mounting Tabletop Length of mic stem 380 mm Operating temperature -5 degC to 45 degC ( 23 degF to 113 degF) Storage temperature -20 degC to 70 degC (-4 degF to 158 degF) Air pressure 600 to 1100 hPa Power consumption 4.4 W (DC) excluding keypads Nominal acoustic input level 75 to 90 dB SPL S/N 60 dB at 85 dB SPL Frequency response 340 Hz to 14 kHz (-3 dB) Loudspeaker S/N 80 dB at max. output Sound pressure level 85 dB (SPL) at 0.5 m and 1 kHz Headset Connector 3.5 mm jack Recommended type Hosiden HBH 0058
