ADC Stethoscopes are renowned for their superior quality and durability. They are manufactured by ISO 9000 certified subcontractors, known for their excellence in the industry. The American Diagnostic Corporation (ADC) takes the extra step to inspect, assemble, and package all stethoscopes in the USA, ensuring the highest level of quality control. The company stands behind their products by providing a lifetime warranty on all ADC stethoscope parts, giving customers peace of mind and confidence in their purchase. ADC Stethoscopes are a reliable and long-lasting choice for healthcare professionals.