I just saw one in the BABIES 'R" US mag!! You can pick up the mag in any Toys r us but they don't have a mailing list
Hope that hepls...
Be weary of using it too much. It is still sending Ultrasound waves into your tummy and this can be hard on the fetus's ears...
Hope you're able to find it. Oh, in Ontario in the mag it was only 24.99 or something