The E-Scope EMS utilizes a set of aviation-style headphones to minimize outside noises allowing the user to optimally hear heart and breath sounds. The gain in sound level is about 30 times that of an acoustic stethoscope. E-Scope EMS is perfect for use in ambulances, helicopters, emergency rooms, stress test labs, naval vessels (surface and submarine), or any other high-noise area. It may also be the perfect choice for a hearing impaired user wanting to reduce outside noise.