Ama Medical Products maintains a very good relationship with Welch Allyn, which has been serving doctors, nurses and other healthcare providers for 100 years with high quality products and solutions across the globe. Master Elite Electronic Stethoscopes are designed with recessed pressure sensor that enables the user to hear the sound by eliminating much of the ambient noise in the environment. They possess a two-position frequency selection switch that helps to pick up low diastolic murmurs or high-pitched pulmonary sounds with ease. Master Elite Electronic Stethoscopes incorporate binaurals and ear tips that can be easily adjustable and offer complete comfort to the user. They featured a patented, recessed piezo pressure that are used to reduce the extraneous noise and promotes excellent signal to noise ratio. These latex-free electronic stethoscopes are equipped with lithium batteries with high durability that can last up to 140 hours. Master Elite Electronic Stethoscopes come with an optional distributor and an optional analyser. The optional distributor enables others to hear simultaneously along with the user whereas the optional analyser helps the user to store and analyse the sound on the user's PC. The patented meditron speakers benefit the user with superior low frequency fidelity and enhance the clarity of the sound when placed on ears.