Im looking for a baby monitor where both the parent & the baby unit can be battery operated, ideally small enough to hang round my neck while I am in the garden etc. I want to be able to leave baby in the car while asleep (we live in the middle of nowhere and the car has to be parked a little way from the house) I have borrowed a Nscessity Compact Baby Monitor and its brilliant but no longer made. Cant find it any where. Anyone got any ideas for me? Help!!