I'd like to buy a simple inexpensive baby monitor with two key features: I want to be able to set it on "voice activation" mode, where the receiver is completely silent --- not even static --- unless there are sounds near the transmitter. And I'd like to have the option of having the transmitter --- as well as the receiver, of course --- be battery-operated, to use while camping or in a car, etc.
Does anyone have any recommendations for such a thing? I definitely don't want video or motion-sensing, I don't much care about the quality of the audio so long as the thing works ok, and I don't care at all if someone very clever or very unlucky can listen in.
I've used a Sony BabyCall (http://tinyurl.com/7qj4kjt) and thought it was terrific -- it's simple, lightweight, inexpensive, and voice-activated. But I don't think the transmitter can operate without a power source -- what a pity!
Thanks in advance for the recommendations!