DC 12V Wired Doorbell Vocal Chime For Home Office Security Access Control System Door Bell 3W

Package Included: 1 x Wired Door Bell Specifications: Power:3W Source Voltage: 220V Wired door bell 12V for security access control Connect to DC 12V power directly Features a bell sound, small size and wall-mount hole, very easy to install Switch is not included Volume of doorbell: 90db Working Voltage: DC12V Red to 12V(+), Black to GND(-) Feature: Material: Plastic Color: White Note: Wired Doorbell for access control system. "Ding-Dong" Voice output without built-in battery, connect to DC 12V Power Directly