Parent Unit for Split-Screen Video Baby Monitor V43Parent Unit for your Babysense Video Baby Monitor V43 Will not work with other models brands. Requires V43 Camera Unit to operate Camera Unit is not Supplied. Supplied with Power Adapter. Multi Camera Expandability Pair up to four cameras to your V43 Parent Unit. Important: Two Parent Units cannot be paired to the same camera s this unit is only a replacement and should not be purchased as a second additional parent unit to your existing monitor.