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operating range: 120 m in open area
option to add another button no
number of melodies 52
optical signaling on the button yes
colour white
optical signaling on the doorbell yes
special functions no
pairing method production pairing
extra (spare) button no
power button 1× 12 V A23 (included)
number of receivers in a package 1 pc
maximum ringing volume 80 dB
volume control yes, 4 levels
number of buttons in a package 1 pc
transmission frequency 433 MHz