The Sprague Rappaport stethoscope Efficiently detects a wide range of heart sounds from 60-400 cycles/second Dual tube stethoscope Versatile, modular design 5 way convertible stethoscope Chest piece with large and small diaphragm. Value for money doctors or nurses stethoscope Latex free dual head sprague stethoscope Also great for veterinary use Each Sprague stethoscope is supplied boxed with the following 2 interchangeable ear pieces 2 interchangeable bell types 2 spare transparent diaphragms A plastic pouch for above accessories.