What is the distance sensor waves name ?

The example for using distance sensor in our life is :

The animal that use the same sound waves the distance sensor use is :

Sometimes distance sensor called :

What is this sensor

If the system info in the brain shows radio = 0 , that mean :

The Brain will automatically recognise the sensor after connecting it in one of the ports .

I can connect to the one VEX IQ brain 6 sensors and 7 motors

Distance sensor can recognise the faces .

VEX IQ robot has 7 sensors .

I can connect brain with controller with different radio colors .