A: This is a button camera and DVR set. The button camera model is the BU-18NEO and the DVR is the PV-500NEO-PRO. It is important to note that the connection type for the button camera has changed to a multi-point screw on connector. THIS MEANS IT IS NOT COMPATIBLE WITH PAST MODELS OF BUTTON CAMERAs (BU). The button camera included in this set "BU-18NEO" is ALSO NOT COMPATIBLE WITH PREVIOUS DVR'S (PV500's).