Brand Name: AOTU
Model Number: Remote control wireless door bell
is_customized: Yes
Type: Remote control wireless door bell
Item Type: Remote control wireless door bell
Remote control range: Up to 100m
Feature: Build in anti-interference desgin
Input Voltage: DC 3V
Chime: Power by 2 x 1.5V AA battery
Music Sound: 32 melody music
Item Size: About 95 x 60 mm