How does the remote collar work?

The dog wears the remote collar receiver on his neck. It's actually part of his collar. The receiver varies in size according to the model and the manufacturer. The collar has metal probes that can vary in length (longer probes are available for for dogs with longer coats). These probes must make contact with the dog's skin.

The dog owner carries a wireless transmitter which also varies in size, depending on the model and manufacturer. The transmitter sends a radio signal to the receiver on the dog's neck.