On Sat, Jun 7, 2014 at 11:45 PM, Sidney Markowitz <sidney@sidney.com> wrote:

I don't know what would make me feel safer - putting the phones in a microwave oven with the chance that the door could easily be left ajar, or getting the acoustic insulation and masking hum of a refrigerator.

Trust the microwave you tested, right, because you do not know what quality DSP is pricessing your remaining 5dB audio over your entire conversation. Or put microwave in fridge ;) aka: remove battery / crush/displace phone... be happy.