3 Pin Pitch 7.5 mm PCB Terminal Block Connector Touch Sensor A piezo buzzer is different

A piezo buzzer is different from a magnetic buzzer in that it is driven by a voltage rather than a current

and it provides a guaranteed stable power supply to the WIFI module

The product is specially designed for smart light mirrors

They are typically used to make outdoor signs

you can turn on/off

3 Pin Pitch 7.5 mm PCB Terminal Block Connector Touch Sensor A piezo buzzer is differentA terminal block is a screw type electrical connector where the wires are clamped down to the metal part by a screw. 8. 0 mm Pitch Pluggable Screw Terminal Block is a compact and versatile terminal block. It finds its use in connecting wires to the PCB. Due to the small size, the terminal block allows for the connection of two conductors on a PCB, where space is premium. It is a connector that allows more than one circuit to connect to another