Our EMS Stethoscopes products are from these brands: Medtech and medsource. This stethoscope is 22” long and has an adjustable chrome-plated brass binaural. The Sprague Stethoscope features a double-tube configuration that provides improved acoustics. Stethoscope that provides versatile acoustical response for infants, children and adults. Small, medium and large bells screw into chest piece to detect low to medium frequency sounds

There is also a dual headed option available from Techmed. Features 22″ PVC tubing, anodized aluminum chest piece, and chrome plated brass binaural. Basic stethoscope for blood pressure readings and dual binaural for teaching. Comes with a one year warranty.