User's Manual

4.3 Charging
You can charge the headset by connecting the supplied USB power & data cable into a computer’s USB port or USB wall
charger. You can use any standard micro USB cable to charge the units. The charging LED turns red while charging and
turns blue when fully charged. It takes about 2.5 hours to be completely charged.
4.4 Low Battery Warning
When the battery is low, the blinking blue LED in stand-by mode turns to red and you will hear mid-tone triple beeps and a
voice prompt, “Low battery”.
4.5 Checking the Battery Level
You can check the battery level in two different ways when the headset is powering on.
4.5.1 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%
4.5.2 Voice Prompt Indicator
When you power on the headset, keep pressing the Phone Button and the Jog Dial simultaneously for about 3 seconds until
you hear three, high toned beeps. Then you will hear a 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.
4.5 Volume Adjustment
You can easily adjust the volume by rotating the Jog Dial. You will hear a beep when the volume reaches the maximum or
minimum level. The volume is set and maintained independently at different levels for each audio source even when you
reboot 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. However, if you adjust the volume during stand-by mode, it will affect volume levels
of every audio source.
4.6 Sena Softwares
4.6.1 Sena Device Manager
The Sena 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 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 device settings and read the User’s Guide and the Quick Start Guide. Pair
your phone with your 10S headset (please refer to section 5.1 “Mobile Phone Pairing - Mobile Phone, Bluetooth Stereo
Device”). Run the Sena Smartphone App and you can configure its settings directly from your smartphone. You can download