Stethoscope.com sells most major brands. Evaluate the specifications in detail. Some models provide a link to computers such as the Littmann or Cardionics products while some provide in-stethoscope recording capabilities. Several electronic stethoscopes we sell can very easily allow users to record sounds and email them to colleagues for teaching or even consultation. Most users have found amplification can make faint sounds much easier to discern. Each product we sell comes with a 30-day money back guarantee.