Welch Allyn brand is widely recognized and trusted by healthcare professionals around the world. Known for their focus on quality and innovation in the medical field, Welch Allyn stethoscopes are durable, lightweight, and adjustable while providing exceptional sound quality and comfort. Professional and Harvey models of Welch Allyn stethoscopes feature rotatable binaurals, interchangeable ear tips, a double-headed chest piece made from stainless steel and a five-year warranty.