Powering On And Off; Volume Adjustment; Software - Sena SP38 User Manual

20S
4.3.1 LED Indicator
When the headset is powering on, the red LED flashes rapidly
indicating the battery level.
4 flashes = High, 70~100%
3 flashes = Medium, 30~70%
2 flashes = Low, 0~30%
4.3.2 Voice Prompt Indicator
When you power on the headset, keep pressing the Jog Dial and the
Phone Button simultaneously for about 3 seconds until you hear three,
high toned beeps. Then you will hear voice prompt indicating the battery
level. However, if you release the buttons as soon as the headset turns on,
you will not hear the voice prompt for the battery level indication.

4.4 Powering On and Off

Press the Jog Dial and the Phone Button at the same time to power the
headset either on or off. When powering on the headset, press the Jog
Dial and the Phone button at the same time until the blue LED appears
while hearing the ascending beeps. When powering off the headset,
press the Jog Dial and the Phone Button at the same time until the
red LED appears briefly and the headset turns off completely while
hearing descending beeps.
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4.5 Volume Adjustment

You can easily adjust the volume by rotating the Jog Dial. You will
hear a beep when the volume reaches maximum or minimum level.
The volume is set and maintained independently at different levels
for each audio source even when you turn off and on the headset.
For example, once you set the volume for mobile phone handsfree,
it will not change even if you adjust the volume for your Bluetooth
MP3 music. So you can always maintain the preferred optimum volume
level for each audio source.

4.6 Software

4.6.1 Sena Device Manager
The Device Manager allows you to upgrade the firmware and configure
the device settings directly from your PC. Using this software, you can
assign speed dial presets, FM radio frequency presets and more. It is
available to download for both Windows and Mac. For more information
on downloading the Device Manager, please visit www.sena.com.
4.6.2 Sena Smartphone App
The Sena Smartphone App allows you to configure the device
settings, create groups of intercom friends, and view the quick start
guide. Simply pair your phone with your 20S headset, run the Sena
Smartphone App and you can configure its settings directly from your
smartphone. You can download the Sena Smartphone App for Android
or iPhone from www.sena.com/headset-app/.