Description GIRA intercom set 2-family. Super flat construction height of 19 mm 5 melodies 2-wire technology The low overall height of only 19 mm and the torsion-resistant surface housing due to aluminum profile testify to high quality as the shatterproof thermoplastic cover frame with high UV stability and scratch-resistant, easy-care surface. Torx screws also protect against theft. The signal transmission and supply to the audio and video components is carried out via the 2-wire bus that is protected from reverse polarity and short-circuit-proof. Equipment: one-man commissioning through simple commissioning procedure Weatherproof loudspeaker High-quality electret microphone hands-free function (voice-controlled intertalking with echound background noise cancellation) Acoustic acknowledgement signal when you press call button voice volume adjustable white call button lighting in LED Technology Maintenance-free and energy-saving LED technology for even, highly visible call button illumination