Wireless Doorbell 98105

button dimensions: 23 × 93 × 34 mm
>colour: silver
>doorchime dimensions: 30 × 70 × 110 mm
>extra (spare) button: P5723T
>maximum ringing volume: 80 dB
>number of buttons in a package: 1 pc
>number of melodies: 16
>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: 1× 3 V CR2032 (included)
>power supply of the main unit: 3× 1.5 V AA (not included)
>reach of the button: 100 m
>special functions: no
>transmission frequency: 433 MHz
>transmission method: wireless bell
>volume control: yes
>waterproof button: IP44