I changed from Cardiac to L&D last year and I really did not need to get anything special. All of the rooms are supplied with good stethoscopes for mom and baby. The one thing I did buy were new shoes. Our L&D has its' own OR for C-sections so we wear hospital scrubs and the shoes we wear cannot be worn outside (unless you put shoe covers on). It was just easier to have a pair that I could leave there and change in to when I work (I would recommend waterproof- labor is messy job!) So, I would just check with the unit before you buy a neonatal stethoscope, chances are you won't need one of your own :)