Hi there, I am thinking about getting a doppler to listen to LO. What are everyone's experiences with them? Which ones do you have and which ones are the best? I have seen two on the net so far one was a Hi-Baby one and the other an Angel Sounds one. I prefered the look of the Hi-Baby one but it was nearly 70 pounds which is quite expensive, but if it was really good I would get it. Thanks in advance!!