The 3M Littman Cardiology stethoscope is the ultimate acoustic stethoscope for accurate auscultation. This stethoscope with the patented single-side ‘master’ chest piece allows the monitoring of both high and low frequency sounds without turning the chest piece over. The 3M Littman Cardiology S.T.C. stethoscopes (soft touch chestpiece) combines outstanding acoustics with a unique and patented chest piece which is designed for high and low frequency responses this stethoscope is easy to grasp and aids movement between auscultation sites. The 3M Littman Master Classic II stethoscope is a designed high performance product for use by general practitioners and paramedics. This stethoscope has a patented single sided ‘master’ chest piece which allows monitoring of both high and low frequency sounds without turning the chest piece over. The 3M Littman Cardiology III stethoscopes provide acoustic excellence for large or small hearts, this stethoscope is suitable for adults and children because of the 2 different sided chest pieces. The 3M Littman Classic II and Classic II Pediatric stethoscopes are ideal for daily use and the Pediatric stethoscope incorporates a 2.5 cm bell, stainless steel chest piece, non-chill rim, and floating diaphragm. The last stethoscope is the 3M Littman Select this stethoscope is designed specially for nurses and technicians. This stethoscope is ideal for general examination purposes, including blood pressure measurements. All of these stethoscopes have soft-sealing ear tips, double lumen tubing, non-chill bell, and cleaning is a snap with isopropyl alcohol solution.