Wireless Doorbell P5727

button dimensions: 22 × 85 × 38 mm
>colour: black
>doorchime dimensions: 67 × 65 × 105 mm
>extra (spare) button: P5727T
>maximum ringing volume: 85 dB
>number of buttons in a package: 1 pc
>number of melodies: 36
>number of receivers in a package: 1 pc
>optical signaling on the button: yes
>optical signaling on the doorbell: no
>option to add another button: yes, max. 6
>packaging: 1 pc, blister
>pairing method: automatic pairing–self-learning
>power button: 1× 3 V CR2032 (included)
>power supply of the main unit: 230 V AC
>reach of the button: 150 m
>special functions: no
>transmission frequency: 433 MHz
>transmission method: wireless bell
>volume control: yes, 4 levels
>waterproof button: IP44