Wireless Doorbell P5750.2T

button dimensions: 24 × 90 × 40 mm
>colour: red
>doorchime dimensions: 66 × 57 × 107 mm
>extra (spare) button: P5750T
>maximum ringing volume: 110 dB
>number of buttons in a package: 2 pcs
>number of melodies: 10
>number of receivers in a package: 1 pc
>optical signaling on the button: yes
>optical signaling on the doorbell: yes
>option to add another button: yes, max. 8
>packaging: 1 pc, blister
>pairing method: automatic pairing–self-learning
>power button: unpowered
>power supply of the main unit: 230 V AC
>reach of the button: 150 m
>special functions: battery-free button
>transmission frequency: 433 MHz
>transmission method: wireless bell
>volume control: yes, 5 levels
>waterproof button: IP44