User's Manual

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4.Mode Switch
There are two kinds of auscultation modes (heart sound mode, lung sound mode), the switch of auscultation mode can
be realized in two ways:
1) under the main interface, by pressing "return / mode key", the mode can be switched; 2) under the menu interface,
the mode sub-menu can select the auscultation mode, and the current auscultation mode can be seen as the mode
icon under the main interface.
5.Adjust Volume
The volume of the auscultation signal could be adjusted. There are two ways to adjust the volume: 1) On the home
interface, adjust by "Menu +/Volume” “Menu-/Volume-"; 2) adjust the volume by sub-menu on the menu page.
6.Adjust Display Brightness
The backlight under the menu page adjusts the brightness of the display. The factory default is 80%. The OLED
displays the backlight brightness for a long time during long standby time.
7. Monitor Patient Heart Rate
The hand-held stethoscope is placed in the red circle of the human body to mark the position to hear the sounds of
lungs, heart, each time the auscultation time should be more than 30 seconds (as shown below)
Location!when!Heart!
sound!detection !
Location!when!Lung!
sound!detection !
510(K) Response to Deficiency on K191667-S001
006_User Manual
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