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The 718-7700-E-Scope II Clinical Hearing Impaired Electronic Stethoscope is a slim-line design that easily wraps around the neck when not in use. This Professional Model E-Scope is supplied with a Specialist Diaphragm, and an accessory pack which contains: 1 pediatric diaphragm (white circle with silver frame) and 2 replacement membranes for diaphragm, 3 black pediatric and neonatal bells and 2 pair of eartips (one hard plastic and one mushroom style).

This Cardionics E-Scope II Amplified Hearing Impaired Stethoscope is lighter than an acoustic stethoscope. All the controls for volume and heart sound or breath sound filters are on the head of the stethoscope making setting the volume or filter easy for the user. On the stethoscope head, there is a (+) and (-) symbol that allows the user to increase or decrease the sound level.

A frequency switch for heart sounds (45-900 Hz) and breath sounds (50-2000 Hz). This allows the listener to concentrate on a particular sound. The E-Scope shuts off automatically at or about two minutes. The E-Scope remembers the last volume setting so when the Stethoscope is turned on, the volume will be set to the previous volume.

The E-Scope uses a standard off-the-shelf AAA battery that operates the E-Scope for 4-5 months assuming usage at 30 times per day, 6 days per week.

Most electronic stethoscopes have a fixed diaphragm with an electronic switch to change to a bell. Most physicians, however, prefer a physical bell as is found on a standard acoustic stethoscope. A real bell allows the physician to listen to lower frequencies in a manner in which he/she is most accustomed. A bell is used to listen to the lower frequencies and has no diaphragm touching the skin. By pressing the bell on the skin, the bell can be stretched forming a natural diaphragm.

The design of the E-Scope significantly reduces the amplification of unwanted outside room noise when used in the heart sound setting. When used in the lung sound setting, there is a little more noise introduced due to the wider frequency band.

For the E-Scope II, the maximum amplitude or sound pressure level output without distortion is 120 dB at 100 Hz. This is about 30 times louder than an acoustic stethoscope.

A complete Operator's Manual as well as an informal instructional CD-ROM is included with each E-Scope.

Cardionics supplies a Specialist Adult Diaphragm as standard on all E-Scopes. An optional Specialist Adult Bell and Specialist Pediatric Bell are available. The performance of the Specialist Adult Diaphragm has a 3 dB (or 50%) higher output than the standard Diaphragm over the 20 to 200 Hz frequency range. Specialist is a trademark for a series of chest pieces machined from high-grade stainless steel.

The Specialist Pediatric Bell output has, on average, about 60% higher than the standard pediatric bell over a 50 to 200 Hz frequency range for both heart and breath sound filter settings.