Don't waste your money

This unit is absolutely terrible. The only way I can get a clear picture is to place parent unit and camera side by side. Even placing these 5 metres apart with nothing in between causes picture to roll and go static. Changing channel doesn't make a difference either. Placing in different rooms just causes picture to roll constantly and cut out. Sound is terrible. Total waste of money, unfortunately I purchased this at beginning of my pregnancy and didn't set it up until it was out of warranty. Do not buy! It doesn't work