which stethoscope is best

Thinklabs ds32a electronic:

http://www.thinklabsmedical.com/

Buy it discounted ($200) from a RN:

http://balkowitsch.com/productinfo.php?pid=728

Welch Allyn Tycos DLX, supposedly better that Littman.

WARNING - DO NOT USE STETHOSCOPES.COM

I ordered an electronic stethoscope on August 9, 2009 and have not received I have email numerous times and called only to find out that there mail box is full. I researched them at that point and they have 33 complaints from the Better Business Bureau and the BBB gave them a grade F.

Buyer Beware

I have an Andromed stethescope. I have to take out my in the canal hearing aids to use the stethoscope. It is a both taking out the hearing aids and putting them back in. Any thoughts on this?