emos wireless doorbell p5729

The most important parameters button reach 180 m power supply of the main unit 230 V AC wireless bell transmission method Other parameters number of melodies 36 waterproof yes button possibility to add another button yes, max. 6 optical signaling on the yes button optical signaling on the outside yes special function battery-free button pairing method automatic pairing - self-learning White color additional (spare) button P5729T power button without power number of receivers in a package 1 pc ma