What is the best stethescope for an ER nurse?

[ERNURSEFINALLY]

After a long 3 years as an RN trying to get a position in the ER......I got it. Now all the prepartion begins. What is a good pocket resource, as I have no ER experience. What is the best stethescope to use? I have a cheap Littman and can hear fairly well, however I realize that the ED can be a noisy place. Thanks for all of your help!

[geminiBSN75]

So how did your first day go?