hi,
i am due 15th Jan. understand that some mtbs are looking for the "Bebe Sounds- Listen, talk and play music to your unborn baby", it is also a prenatal heart listener. my gf gave 1 set to me, she bght it from mothers work and it costs $100+, remembered seeing at mums n babes in united sq too.
just started using it a few days ago to listen to bb's hb, really amazing, sound like horse galloping!