Sena BS User manual

3S
Bluetooth®Headset & Intercom
for Scooters and Motorcycles
User's Guide
www.sena.com

3S
CONTENTS
1. INTRODUCTION .................................................................................3
2. PACKAGE CONTENTS ........................................................................4
3. GETTING STARTED .............................................................................5
Installing the 3S on Your Helmet .................................................................. 5
Powering On................................................................................................. 6
Powering Off................................................................................................. 6
Charging the 3S ........................................................................................... 6
Checking Battery Level ................................................................................ 7
Adjusting the Volume Level.......................................................................... 8
Function Priority............................................................................................ 8
Fault Reset.................................................................................................... 8
4. OPERATION QUICK REFERENCE ......................................................9
5. PAIRING AND USING THE 3S WITH BLUETOOTH DEVICES..........11
Mobile Phone Pairing ................................................................................. 11
Multipoint Mobile Phones Pairing............................................................... 11
Bluetooth Stereo Device Pairing................................................................. 12
Bluetooth GPS Navigation Pairing.............................................................. 12
Mobile Phone Call Making and Answering ................................................ 15
Stereo Music............................................................................................... 15
6. INTERCOM CONVERSATION ...........................................................16
Pairing with Other 3S Headsets for Intercom Conversation....................... 16
Starting and Ending Intercom Conversation .............................................. 16
Intercom and Mobile Phone Call................................................................ 16
Intercom Failure.......................................................................................... 17
Intercom Reconnection .............................................................................. 17
7. 3S CONFIGURATION SETTING ........................................................17
Enabling/Disabling Voice Activated Phone Answering .............................. 18
Enabling/Disabling Voice Prompts ............................................................. 18
Delete All Bluetooth Pairing Information..................................................... 18
Reset to Factory Default Setting................................................................. 19
Exit Voice Conguration Menu ................................................................... 19
8. FIRMWARE UPGRADE ......................................................................20
BATTERY INFORMATION.........................................................................20
MAINTENANCE AND CARE......................................................................21
DISPOSAL..................................................................................................21
CERTIFICATION AND SAFETY APPROVALS..........................................22
FCC Compliance Statement....................................................................... 22
FCC RF Exposure Statement...................................................................... 22
FCC Caution............................................................................................... 22
CE Declaration of Conformity..................................................................... 22
Industry Canada Statement ....................................................................... 23
Bluetooth License....................................................................................... 23
WAIVER AND GENERAL RELEASE .........................................................23
Two-year Limited Warranty......................................................................... 25
Limitation of Liability................................................................................... 25
Return for Full Refund ................................................................................ 26
WARNING ..................................................................................................26

3S
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English
1. INTRODUCTION
Thank you for choosing the Sena 3S, Bluetooth Headset and Intercom for
Scooters and Motorcycles. With the 3S, you can call handsfree on your
Bluetooth mobile phone, listen to stereo music or GPS navigation voice
instructions via Bluetooth, and have intercom conversations in full duplex
with a passenger or other riders.
The 3S is compliant with the Bluetooth specication 3.0 supporting the
following proles: Headset Prole, Hands-Free Prole (HFP), Advanced
Audio Distribution Prole (A2DP), and Audio Video Remote Control
Prole (AVRCP). Please conrm compatibility with other devices with the
manufacturers.
Please read this user guide carefully before using the headset. Also visit
www.sena.com for the latest version of the user guide and for additional
information related to Sena Bluetooth products.
The 3S includes the following features:
• Bluetooth handsfree for Bluetooth mobile phones
• Bluetooth stereo headset for Bluetooth stereo devices such as MP3
players
• Bluetooth stereo headset for Bluetooth GPS navigations
• Bluetooth intercom up to 200 meters (220 yards)*
• Easy two-button operation
• Installation friendly unibody design
• Firmware upgradeable
Key Specications:
• Bluetooth 3.0
• Supporting proles: Headset Prole, Hands-Free Prole (HFP),
Advanced Audio Distribution Prole (A2DP), Audio Video Remote
Control Prole (AVRCP)
* in open terrain

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2. PACKAGE CONTENTS
Status LED
Speakers
Microphone
(-) Button
(Intercom Button)
(+) Button
(Phone Button)
Pin-hole
Reset Button
DC Power Charging &
Firmware Upgrade Port
3S Headset
USB Power & Data Cable
Microphone Sponges Velcro Pads
for Speakers

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English
3. GETTING STARTED
Installing the 3S on Your Helmet
1. Place the speaker-microphone unit in the helmet along with the velcro
pads, centered to your ear, in the ear pockets of the helmet. Locate
the boom microphone as closely as possible to your mouth when
wearing the helmet.
2. Hide the wire under the helmet padding after the installation.
1
2

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3
4
Powering On
Press and hold the (+) Button and the (-) Button at the same time for 1
second to power on. The blue LED turns on and you will hear ascending
beeps and “Hello”.
Powering Off
Press the (+) Button and the (-) Button at the same time. The red LED
turns on for about 2 seconds until it turns off completely and you will hear
“Goodbye” and descending beeps.
Charging the 3S
You can charge the 3S by connecting the supplied USB power & data
cable into a computer USB port or USB wall charger. You can use any
standard micro-USB cable to charge the 3S. The LED turns red while
charging, and turns blue when the headset is fully charged. It takes
about 2.5 hours to fully charge.

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English
Checking Battery Level
You can check the battery level in two different ways when the headset
is powering on.
LED Indicator
When the headset is powering on, the red LED ashes rapidly indicating
the battery level.
LED Status
4 ashes High, 70~100%
3 ashes Medium, 30~70%
2 ashes Low, 0~30%
Voice Prompt Indicator
When you power on the headset, keep pressing and holding the (+)
Button and (-) Button simultaneously for about 3 seconds until you hear
three high tone 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.
Note:
1. The USB power & data cable is also used for firmware upgrade of the 3S.
2. The USB wall charger is not included in the package. Any 3rd party USB
charger can be used with Sena products if the charger is approved by either
FCC, CE, IC, or other locally approved agencies that Sena accepts. Please
contact Sena regarding locally approved agencies Sena accepts.

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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 saying
“Low battery”.
Adjusting the Volume Level
You can easily adjust the volume by pressing the (+) Button or the (-)
Button. 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 when you
hear Bluetooth MP3 music. So you can always maintain the preferred
optimum volume level for each audio source.
Function Priority
The 3S operates in the following order of priority:
(Highest) Mobile Phone
Intercom
(Lowest) Bluetooth Stereo Music
A lower priority function is always interrupted by a higher priority
function. For example, stereo music is interrupted by an intercom call,
and intercom conversation is interrupted by an incoming mobile phone
call.
Fault Reset
When the 3S is not working properly or is in faulty status for any reason,
you may reset by pushing the pin-hole reset button on the left speaker
unit. Insert a paper clip into the reset pin-hole and press and hold the
reset button for a second with light pressure. The 3S will be switched
off after which time, you have to turn the system back on and try again.
However, this will not restore the headset to factory default settings.

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English
4. OPERATION QUICK REFERENCE
Function Operations
Power
On/Off
1 sec. 1 sec.
+
Power On
1 press 1 press
+
Power Off
Volume
Adjustment
1 press 1 press
or
Intercom
Pairing
pairing
AB
1) 5 sec. 5 sec.
2) 1 sec.
Function Operations
Bluetooth
Pairing
(Phone, MP3,
GPS)
1)
Sena 3S
Sena 3S v1.1
5 sec.
2) Sena 3S
Sena 3S v1.1
Select
3)
Sena 3S
Sena 3S v1.1
Enter PIN
Start & End
Intercom
Conversation
1 sec.
Conguration
10 sec.

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Function Operations
Mobile
Phone
Answer
or
1 press
End
2 sec.
Voice
Command
*
3 sec.
*
3 sec.
Reject
2 sec.
Function Operations
Music
1 sec.
2 sec.
2 sec.
* You can use “Voice Command” and “Redial” only in stand-by mode.

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English
5. PAIRING AND USING THE 3S WITH
BLUETOOTH DEVICES
Mobile Phone Pairing
1 Turn on the 3S and press and hold the (+) Button for 5 seconds until
the LED ashes red and blue alternately and you hear multiple beeps.
You will hear a voice prompt saying “Phone pairing”.
2. Search for Bluetooth devices on your mobile phone. Select the Sena
3S in the list of the devices detected on the mobile phone.
3. Enter 0000 for the PIN. Some mobile phones may not ask for the PIN.
4. The mobile phone conrms that pairing has completed and the 3S is
ready to use. You will hear a voice prompt from the 3S saying “Your
headset is paired”.
5. If the pairing process is not completed within three minutes, the 3S
will return to stand-by mode.
Multipoint Mobile Phones Pairing
You can simultaneously use two mobile phones which use the mobile
phone prole.
1. You can pair the rst mobile phone to the 3S by following the simple
procedures in “Mobile Phone Pairing”.
2. To pair the second mobile phone, press and hold the (-) Button for 5
seconds until the red LED is rapidly ashing and you hear multiple
beeps.
3. Within 2 seconds, press and hold the (+) Button for 1 second, then
the LED turns to blue ashing and the beeps turn to high tone double
beeps. You will hear a voice prompt saying “Multipoint pairing”.
4. Search for Bluetooth devices on your mobile phone. Select the Sena
3S in the list of the devices detected on the mobile phone.
5. Enter 0000 for the PIN. Some mobile phones may not ask for the PIN.
6. The mobile phone conrms that pairing has completed and the 3S is
ready to use. You will hear a voice prompt from the 3S saying “Your
headset is paired”.

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3S
1st Mobile Phone 2nd Mobile Phone
Mobile Phone
Pairing
HFP
+
A2DP HFP
Multipoint
Pairing
Multipoint Mobile Phones Pairing
Bluetooth Stereo Device Pairing
1. If the Bluetooth stereo device is integrated with the mobile phone
such as smartphones, you don’t need to pair the 3S with it separately.
When the 3S is paired with the mobile phone, it is also paired as a
stereo music device.
2. If you have a stand alone Bluetooth stereo device, follow the pairing
procedure separately. The procedure is the same as the procedure of
“Mobile Phone Pairing”.
Note:
1.
If Bluetooth connection between the headset and a mobile phone is
disconnected, press and hold the (+) Button for 3 seconds to recover the
Bluetooth connection immediately.
2. If Bluetooth connection between the headset and a media player is
disconnected, press and hold the (+) Button for 1 second to recover the
Bluetooth connection and play.
Bluetooth GPS Navigation Pairing
You can listen to voice instruction from Bluetooth GPS navigation. Some
GPS systems use mobile phone prole (HFP, Hands-Free Prole) and
others use stereo music prole (A2DP, Advanced Audio Distribution
Prole). Most motorcycle specic GPS systems use mobile phone
prole for turn-by-turn voice instruction. You can simultaneously use a
mobile phone and a GPS which uses mobile phone prole by one of the
following procedures.

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English
Multipoint GPS Pairing
If you use GPS only for turn-by-turn voice instructions, not for Bluetooth
stereo music streaming, multipoint pairing is recommended for the GPS
connection. Multipoint Bluetooth pairing allows the 3S to connect two
HFP devices at the same time: mobile phone and GPS navigation. Follow
the steps below to pair the GPS using the multipoint pairing.
1. Turn on the headset and press and hold the (-) Button for 5 seconds
until the red LED is rapidly ashing and you hear multiple beeps.
2. Within 2 seconds, press and hold the (+) Button for 1 second, then
the LED turns to blue ashing and the beeps turn to high tone double
beeps. You will hear a voice prompt saying “Multipoint pairing”.
3. Search for Bluetooth devices on the GPS navigation screen. Select
the Sena 3S in the list of the devices detected on the GPS.
4. Enter 0000 for the PIN.
5. The GPS conrms that pairing has completed and the 3S is ready to
use. You will hear a voice prompt from the 3S saying “Your headset
is paired”.
6. If the pairing process is not completed within three minutes, the 3S
will return to stand-by mode.
The pairing diagram for multipoint GPS pairing is shown in the gure
below.
GPS Navigation
3S
Mobile Phone
Mobile Phone
Pairing
HFP
+
A2DP HFP
Multipoint
Pairing
Multipoint GPS Pairing

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GPS Pairing as Mobile Phone
If GPS is not only used for turn-by-turn voice instructions but also is your
preferred Bluetooth stereo music source, you can pair the GPS to the 3S
by following the simple procedures in “Mobile Phone Pairing”. When you
do this, the 3S thinks the GPS is a mobile phone. But the 3S can directly
pair an additional mobile phone.
Note:
You have to use a motorcycle specific GPS which transmits turn-by-turn
voice instruction to the headset by Bluetooth. Most automotive GPS systems
don’t have this feature.
GPS Navigation Mobile Phone
3S
HFP
HFP
+
A2DP
Multipoint
Pairing
Mobile Phone
Pairing
GPS Pairing as Mobile Phone

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English
Mobile Phone Call Making and Answering
1. When you have an incoming call, simply press the (+) Button to answer
the call.
2. You can also answer the incoming call by loudly speaking any word
of your choice if Voice Activated Phone Answering, VOX phone is
enabled. (Refer to “Enabling/Disabling Voice Activated Phone Answering”
for details.)
3. To end a call, press and hold the (+) Button for 2 seconds until you
hear a mid-tone single beep, or wait for the called person to end the
call.
4. To reject a call, press and hold the (-) Button for 2 seconds until you
hear a beep while the phone is ringing.
5. There are several ways to make a phone call:
• Enter numbers on your mobile phone keypad and make a call.
Then the call is automatically transferred to the headset.
• Press and hold the (+) Button for 3 seconds in stand-by mode
until you hear a high tone single beep to activate the voice dialing
of your mobile phone. For this, the voice dialing feature must be
available on the mobile phone. Refer to your mobile phone manual
for further instruction.
• To redial the last number, press and hold the (-) Button for 3
seconds in stand-by mode until you hear a high tone single beep.
You will hear a voice prompt saying “Last number redial”.
Note:
1.
If you are using multipoint mobile phone connection and you have an
incoming call from the second phone during the call of the first phone, then
you may still receive the call from second phone. In this case, the call from
the first phone is on waiting mode. If you end a call, then it will automatically
guide you to the first phone call.
2. If you are using multipoint connection of mobile phone and GPS, you may not
listen to the GPS voice instruction during the phone call.
Stereo Music
You can listen to stereo music by Bluetooth wireless stereo. The Bluetooth
audio device must be paired with the 3S by following the
“Bluetooth Stereo
Device Pairing” instructions. The 3S
supports the Audio/Video Remote
Control Prole (AVRCP), so if your Bluetooth audio device also supports
the AVRCP, you can use the 3S to remotely control music playback. So,
you can not only adjust the volume but also use the functions such as
play, pause, track forward and track backward.
• To adjust the volume, press the (+) Button or the (-) Button.
• To play or pause music, press and hold the (+) Button for 1 second
until you hear a double beep.
• To track forward or track back, press and hold the (+) Button or the (-)
Button for 2 seconds until you hear a double beep.

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6. INTERCOM CONVERSATION
Pairing with Other 3S Headsets for Intercom
Conversation
The 3S can be paired with another headset for Bluetooth intercom
conversation.
1. Turn on the two 3S headsets (A and B) that you would like to pair with
each other.
2. Press and hold the (-) Button of the headset A and B for 5 seconds
until the red LEDs of both units start to ash rapidly. You will hear a
voice prompt saying “Intercom pairing”.
3. Simply press the (-) Button of either of the two headsets A or B (It
doesn’t matter that you choose A or B) and wait until the LEDs of
both headsets turn to blue and intercom connection is automatically
established. The two 3S headsets A and B are paired with each other
for intercom conversation. If the pairing process is not completed
within one minute, the 3S will return to stand-by mode.
Starting and Ending Intercom Conversation
1. You can start an intercom conversation with your intercom friend by
pressing and holding the (-) Button for 1 second.
2. To terminate an intercom conversation, press and hold the (-) Button
for 1 second again.
Intercom and Mobile Phone Call
1. When you have an incoming mobile phone call during an intercom
conversation, you will hear a ring tone. You can choose whether to 1)
answer the mobile phone call and stop the intercom conversation, or
2) reject the phone call and stay on the intercom conversation.
• To answer the phone call and stop the intercom conversation, press
the (+) Button. When you hang up the phone call, the intercom will
automatically be recovered.
• To reject the phone call and stay on the intercom conversation,
press and hold the (-) Button for 2 seconds until you hear a beep.
Unlike other motorcycle Bluetooth headsets, this prevents a user from
being dropped out of an intercom conversation by an incoming mobile
call.
2. When you have an incoming intercom call during a mobile phone call,
you will hear 4 high tone beeps, alerting you that there is an incoming

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English
intercom call. You will also hear a voice prompt saying “Intercom
requested”. In this case, the intercom call does not override the
mobile phone call because intercom has lower priority than mobile
call. You have to hang up the mobile phone call to make or receive an
intercom call.
Intercom Failure
When you try to start an intercom conversation with an intercom friend
who is already having a mobile phone call with another person, you will
hear a low tone double beep signifying a busy signal. You will also hear a
voice prompt saying “Intercom failed, try again later”. In this case, you
have to try again later. On the other hand, the intercom friend will hear
4 high tone beeps alerting them that there is an incoming intercom call.
Intercom Reconnection
If your intercom friend goes out of range while having an intercom
conversation, you may hear static noise and eventually the intercom will
be disconnected. In this case, the 3S automatically tries to reconnect
the intercom every 8 seconds. You will hear high tone double beeps until
the intercom is reestablished. If you don’t want to make a reconnection,
press and hold the (-) Button for 1 second to stop the attempt.
7. 3S CONFIGURATION SETTING
You can set the conguration of the 3S by the voice menu instruction as
below.
1. To enter into voice conguration menu, press and hold the (+) Button
for 10 seconds until the LED shows solid blue and you hear high tone
double beeps. You will hear a voice prompt saying “Conguration
menu”.
2. Press the (+) Button to navigate between menus. You will hear voice
prompts for each menu items as below.
3. You can enable or disable the feature or execute the command by
pressing the (-) Button.
4. If any button is not pressed within 10 seconds, the 3S will exit the
conguration and goes back to standby.
5. If you want to exit the conguration immediately, press and hold the
(+) Button until you hear a voice prompt, “Exit conguration”, and
press the (-) Button.

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The voice prompts for each menu item are as below:
(1) VOX phone
(2) Voice prompt
(3) Delete all pairings
(4) Factory reset
(5) Exit conguration
Enabling/Disabling Voice Activated Phone Answering
Voice Prompt “VOX phone”
Factory Default Enable
Enable / Disable Press the (-) Button
If this feature is enabled, you can answer incoming calls by simply
saying a word loudly enough, unless you are connected to intercom. For
example, when you hear a series of beeps for an incoming call, you can
answer the phone by saying “Hello” or any other word loudly. However,
the phone VOX feature does not work if you are connected to intercom.
This is enabled from the factory but you can disable this. If this mode is
disabled, you have to press the (+) Button to answer an incoming call.
Enabling/Disabling Voice Prompts
Voice Prompt “Voice prompt”
Factory Default Enable
Enable / Disable Press the (-) Button
You can disable voice prompts by conguration setting, but the following
voice prompts are always on.
- Voice prompts for conguration setting menu
- Voice prompts for battery level Indicator
- Voice prompts for factory reset
Delete All Bluetooth Pairing Information
Voice Prompt “Delete all pairings”
Factory Default N/A
Execute Press the (-) Button
To delete all Bluetooth pairing information of the 3S, press and hold
the (+) Button until you hear a voice prompt, “Delete all pairings”, and
press the (-) Button to conrm.

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English
Reset to Factory Default Setting
Voice Prompt “Factory reset”
Factory Default N/A
Execute Press the (-) Button
To restore factory default settings on the 3S, press and hold the (+)
Button until you hear a voice prompt, “Factory reset”. Press the (-)
Button to conrm. The 3S powers off with a voice prompt, “Headset
reset, goodbye”.
Exit Voice Conguration Menu
Voice Prompt “Exit conguration”
Factory Default N/A
Execute Press the (-) Button
To exit voice conguration menu and get back to stand-by mode,
press and hold the (+) Button until you hear a voice prompt, “Exit
conguration”. Press the (-) Button to conrm.
Press (+) Button Press (-) Button
“Vox phone” Enable / disable
“Voice prompt” Enable / disable
“Delete all pairings” Execute
“Factory reset” Execute
“Exit conguration” Execute
Voice Conguration Menu & Button Operations

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8. FIRMWARE UPGRADE
The 3S supports rmware upgrade function. Please visit Sena Bluetooth
web site at www.sena.com to check the latest software downloads.
BATTERY INFORMATION
The product has an internal, non-removable, rechargeable battery. Do
not attempt to remove the battery from the device as you may damage
the device. The battery can be charged and discharged hundreds of
times, but it will eventually wear out. Recharge the battery only with Sena
approved chargers designated for this device. Use of an unapproved
charger may present a risk of re, explosion, leakage, or other hazard.
Always try to keep the battery between 15ºC and 25ºC (59ºF and 77ºF).
Extreme temperatures reduce the capacity and lifetime of the battery.
A device with a hot or cold battery may not work temporarily. Battery
performance is particularly limited in temperatures well below freezing.
Do not dispose of batteries in a re as they may explode. Batteries may
also explode if damaged. Never use any charger that is damaged.
Operating times may differ depending on the devices used together,
features used, battery age and condition, temperatures to which battery
is exposed, and many other factors.