AngelSounds JPD-100S Mini Manual Del Usuario página 6

Battery
battery.
How to find the heart of the fetus
Apply a little gel to the signal transmission site (not included) and place
the device on your stomach. Move it slowly, trying to find the heart of the
fetus. After finding the sound, continue to move the probe slowly, looking
for the place where the sound signal will be clearest.
The usual position of the fetus can be seen in the following picture.
However, the position of the fetus may vary depending on the stage of
pregnancy and other conditions.
Battery included. It's
located directly on
the device, but not
connected.
first use, the battery
must be connected as
shown in
following picture.
Remove the cover (5)
and connect
Before
the
the