The CI-40 is an audiometric booth with an acoustic attenuation of 44 dB at 8000 Hz. It has silent blocks and non-assisted ventilation. There is a double panel for connections including 6 jacks with a diameter of 6.35 mm each. The audiometric booth closes hermetically and has double glass, an internal light source, and a tip-up table. The CI-40 has been certified by the University of Ramon Llull. It runs on a power supply of 220 V-50/60 Hz and uses a standard earth. The packing is included and it has a newt weight of approx. 360 kg. The panels have a thickness of +/- 90 mm. It is CE registered.