Doorbell wireless 2 pcs black

Product - wireless doorbell

Range in an open environment - 180 m

Number of melodies - 52

Pairing method - automatic

Signal - optical, sound

Maximum ringtone strength - 90 dB

Option to add buttons - yes, max 6

Waterproof button - yes

Button power supply - 1 × 12 V A23 (included)

Volume control - yes, 5 levels

Transmission frequency - 433 MHz

Color - black

Clock power supply - 3 × 1.5 V AAA (not included)