Hello,

I'm about to buy 2 or 4 cameras to watch our two babies rooms. It is required, that the cameras have:

- live preview from at least 2 cameras at once
- live audio from 2 cameras at once OR visual audio level indicators OR audio activation if certain noise level is achieved (so we will now if the baby is not asleep/crying, and in which room - sometimes you cannot tell by just looking at your baby, if it is crying or yawning :))
- digital zoom

I will be very glad to receive any information suggesting which models will fulfill our requirements.