20S Motorcycle Bluetooth® Communication System www.sena.
0S © 1998-2014 Sena Technologies, Inc. All rights reserved. Sena Technologies, Inc reserves the right to make any changes and improvements to its product without providing prior notice. Sena™ is a trademark of Sena Technologies, Inc. or its subsidiaries in the USA and other countries. 20S™, SMH10™, SMH5™, SMH5-FM™, SPH10™, SPH10H™, SPH10H-FM™, SMH10R™, SPH10S™, SPH10H™, SR10™, SM10™, EXPAND™, Bluetooth Pack for GoPro®, and PRISM™ are trademarks of Sena Technologies, Inc. or its subsidiaries.
20S 1 INTRODUCTION....................................................................................................5 2 PACKAGE CONTENTS.........................................................................................6 3 INSTALLING THE 20S ON YOUR HELMET.........................................................8 3.1 3.2 3.3 3.4 3.5 4 GETTING STARTED............................................................................................12 4.1 4.2 4.3 4.4 4.5 4.
20S 18 UNIVERSAL INTERCOM.....................................................................................36 SAFETY INFORMATION...........................................................................................58 18.1 Universal Intercom Pairing................................................................................................ 36 18.2 Two-way Universal Intercom............................................................................................. 37 18.
20S Thank you for choosing the Sena 20S, Motorcycle Bluetooth Communication System. With the 20S, you can call handsfree on your Bluetooth mobile phone, listen to stereo music or voice instructions of GPS navigations by Bluetooth wirelessly, and have intercom conversations in full duplex with a passenger or other motorcycle riders. The 20S is compliant with the Bluetooth 4.
20S 2 PACKAGE CONTENTS • Headset Main Unit Phone Button • Answer and end a mobile phone call • Speed dial • Call transfer between mobile phone and headset • Enter into mobile phone pairing mode • Enter into Bluetooth stereo device pairing mode • Enter into factory reset mode • Turn on/off FM tuner External Antenna Status LED DC Power Charging & Jog Dial • Answer and end a mobile phone call • Reject an incoming mobile phone call • Start and end intercom conversation • Volume adjustment by rotating • Play
20S • Universal Helmet Clamp • Wired Boom Microphone English Speaker Port Microphone Port • Wired Microphone Quick Release Button • USB Power & Data Cable Earbud Port • Cigarette Charger Static Boom Microphone MP3 Port • Non-Bluetooth audio device (MP3 player, mobile phone) • Laser/radar detector • Two-way radio Dynamic Speakers Ambient Mode Button • 2.5 to 3.
20S • Rubber Pads • Velcro Pads for Speakers • Velcro Pad for Boom Microphone • Velcro Pad for Wired Microphone • Speaker Pads • Allen Wrench 8 3 INSTALLING THE 20S ON YOUR HELMET 3.1 Helmet Installation To securely install the 20S on the helmet, please follow this procedure. 1. Loosen the two screws on the back plate of the clamp unit using the enclosed allen wrench. Insert the back plate of the clamp unit between the internal padding and external shell of the helmet, and tighten the two screws.
20S 3. Please adjust the direction of the microphone so that the fin side of the microphone is facing outward; away from your lips. You can easily recognize it by touching the fin with your fingers. Fin 4. Place the helmet speakers along with the velcro pads, centered to your ear, in the ear pockets of the helmet. If the helmet has deep ear pockets, you can use the speaker pads to place the speakers closer to your ears. 5. Attach the headset main unit to the clamp unit.
20S 6. To remove the main unit from the clamp unit, press the Quick Release Button to slide it off the clamp unit. 5. Peel off the cover of the adhesive tape of the adapter and attach the unit on the proper surface of your helmet. 3.2 Glued Surface Mounting Adapter If you have any problem equipping the clamp unit on the helmet for any reason, you may use the glued surface mounting adapter to attach the clamp unit on the external surface of the helmet. 1. Remove the back plate of the clamp unit completely.
20S 3.3 Switching the Microphone 3.3.2 Wired Microphone In case of the wired microphone, attach the enclosed velcro pad for the wired microphone to the inside of the chin guard for full-face helmets. Place the wired microphone on the velcro pad and connect it to the connector of the clamp unit. 11 English If you want to use a different microphone instead of the static boom microphone, please refer to the following steps. 1.
20S 3.4 Earbuds If you want to wear your own earbuds, connect the earbuds to the earbud port on the left side of the clamp. You can connect your earbuds to the clamp while having the speakers connected to the clamp. The sound of the earbuds will be active while the sound of the outer speakers becomes inactive. 4 GETTING STARTED 4.1 Charging The LED turns red while the headset is charging and turns blue when it is fully charged. It takes about 2.5 hours to be completely charged. 4.
20S 4.6 Software 4.4 Powering On and Off 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. Press the Jog Dial and the Phone Button at the same time to power the headset either on or off.
20S 5 PAIRING THE 20S WITH BLUETOOTH DEVICES Before using the 20S Bluetooth headset with any of Bluetooth devices for the first time, you will need to pair them together. It can be paired with Bluetooth mobile phones, Bluetooth stereo devices such as MP3 players, or motorcycle specific Bluetooth GPS navigation, and with other Sena Bluetooth headsets. This pairing operation is only required once for each Bluetooth device.
20S 5.2 Second Mobile phone Pairing 5.3 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 20S with it separately. When the 20S 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 in section 5.1, “Mobile Phone Pairing”. Note: 1.
20S 5.4 Bluetooth GPS Navigation Pairing You can listen to voice instructions from Bluetooth GPS navigation. Some GPS systems use the mobile phone profile (HFP, Hands-Free Profile) and others use the stereo music profile (A2DP, Advanced Audio Distribution Profile). Most motorcycle specific GPS systems use a mobile phone profile for turn-by-turn voice instructions. You can simultaneously use a mobile phone and a GPS which uses a mobile phone profile by one of the following procedures. 5.4.
20S HFP GPS HFP + (A2DP) Mobile Phone Mobile Phone Pairing 20S GPS Pairing as Mobile Phone Note: English 5.4.2 GPS Pairing as Mobile Phone If a 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 20S by following the simple procedures in “5.1 Mobile Phone Pairing”. However, since some GPS systems support mobile phone bridging over Bluetooth, you can pair the mobile phone to the GPS to use your mobile phone.
20S 5. If the pairing process is not completed within three minutes, the 20S will return to stand-by mode. The incoming audio from the two-way radio via SR10 is heard in the background while having an intercom conversation or a mobile phone call. You can listen to music, answer a mobile call, have an intercom conversation and use a two-way radio via the SR10 for group communication as shown in the figure below.
20S If you have a MP3 stereo music phone such as a smartphone, sometimes you may need to selectively use the 20S for A2DP stereo music only or for mobile phone handsfree only. These instructions are for advanced users who want to pair the 20S to their smartphones only with one selective profile: A2DP stereo for music or HFP for phone calls. If you have previously paired a mobile phone to the 20S, you must clear the previous paring list on both devices; the mobile phone and 20S.
S 7 MOBILE PHONE CALL MAKING AND ANSWERING 7.1 Mobile Phone Call Making and Answering 1. When you have an incoming call, simply tap the Phone Button or the Jog Dial 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, unless you are connected to intercom. 3.
20S (1) Last number redial (4) Speed dial 3 (2) Speed dial 1 (5) Cancel (3) Speed dial 2 4. After selecting the last number redial menu, you will hear a voice prompt saying “Last number redial”. Then, to redial the last phone call number, tap the Phone Button or the Jog Dial. 5. To call one of the speed dials, rotate the Jog Dial clockwise or counter-clockwise to navigate between the menus until you hear a voice prompt saying “Speed dial (#)”. Then, tap the Phone Button or the Jog Dial. 6.
20S a. To answer the phone call and stop the intercom conversation, tap the Jog Dial or the Phone Button. The VOX Phone feature does not work if you are connected to intercom. When you hang up the phone call, the intercom will automatically be recovered. b. To reject the phone call and stay on the intercom conversation, press the Jog Dial for 2 seconds until you hear a beep.
20S 3. To track forward or track back, rotate while pressing the Jog Dial clockwise or counter clockwise. Note: Bluetooth music is available only when the MP3 port remains open. Please make sure the audio cable is unplugged from the clamp unit to play music by Bluetooth. 2. To play or pause music, press and hold the Jog Dial for 1 second until you hear a double beep. 8.3 Music Sharing You can start sharing music with an intercom friend using Bluetooth stereo music during a two-way intercom conversation.
20S 2. You and your intercom friend will listen to or terminate sharing music. 3. To track forward or track back, rotate while pressing down the Jog Dial clockwise or counter clockwise. Please refer to chapter 15 for more information on intercom connections. Note: 1. Audio Multitasking must be enabled to use music sharing. Please refer to section 20.2 for more details on the Audio Multitasking feature. 2.
20S As described in section 5.5, you can use a two-way radio and the 20S Bluetooth intercom simultaneously by using the Sena SR10, a Bluetooth Two-way Radio Adapter, along with the 20S. Incoming audio from the two-way radio will not interrupt an intercom conversation but is heard in background. This is useful when you have an intercom conversation with a passenger on the back seat and use a two-way radio for group communication with other motorcycle riders.
20S 11 FM RADIO 11.1 FM Radio On / Off To turn on the FM radio, press and hold the Phone Button for 2 seconds until you hear a mid-tone double beep sound. You will then hear a voice prompt saying “FM on”. In order to turn off the FM radio, press and hold the Phone Button for 2 seconds until you hear a voice prompt saying “FM off”. When you power off, the 20S will remember the last station frequency. When you power it on, the last station frequency will be playing. 11.
20S 11.6 Region Selection "Scan" is the function that automatically searches station frequencies, starting from the current frequency and up. To use the scan function, please follow the procedures below: 1. Double tap the Phone Button. Then the current station frequency moves upward to find other station frequencies. 2. If the tuner finds a station, it stays at the station frequency for 8 seconds, then scanning to the next station frequency. 3.
20S 12 AMBIENT MODE You can hear the ambient sound outside of your helmet by activating the Ambient Mode. To activate the Ambient Mode, press the Ambient Mode Button which is placed on the bottom of the clamp unit. To deactivate the Ambient Mode, press the Ambient Mode Button again. 13 VOICE COMMAND The voice command of the 20S allows you to operate certain operations by simply using your voice. You can control the 20S completely handsfree using the voice recognition.
20S Standby Music / FM Radio Function Voice Command Start music “Music” or “Stereo” Turn on FM radio “FM radio” Check battery “Check battery” Speed dialing “Speed dial [one, two, three]” Redial the last call “Redial” Voice command help “What can I say?” Check connected devices “Connected devices” Configuration menus “Configuration” Next track (music) / next preset (FM radio) “Next” Previous track (music) / previous preset (FM radio) “Previous” Stop music / FM Radio “Stop” Note: E
20S A 14 INTERCOM PAIRING 14.1 Pairing with Other 20S Headsets for Intercom Conversation The 20S can be paired with up to nine other headsets for Bluetooth intercom conversation. 1. Turn on the two 20S headsets (A and B) that you would like to pair with each other. 2. There are two ways you can enter the two headsets into pairing mode. –– Press and hold the Jog Dial of the headset A and B for 6 seconds until red LEDs of the both units start to flash rapidly.
20S Note: 1. For example, after the pairing procedures listed above, headset D is the first intercom friend of headset A. Headset C is the second intercom friend of headset A, and headset B is the third intercom friend of headset A. 2. Pairing by shaking works only between 20S devices. 14.2 Pairing with Other Sena Headset Models for Intercom Conversation The 20S can be paired with all other Sena headset models such as the SMH10 and the SMH5 for intercom conversation.
20S 1st intercom friend 2nd intercom friend 3rd intercom friend Start intercom Single tap Double tap Triple tap End intercom Single tap Double tap Triple tap End any intercom 2. Start an intercom conversation with one of the two friends in your intercom group. For example, you (A) may start an intercom conversation with the intercom friend (B). Or intercom friend (B) may start an intercom call with you (A). press and hold for 2 second Start & End Two-way Intercom (A) 15.
20S (A) First Friend (B) Second Friend (C) 15.2.2 End Three-way Intercom When you are a member of an active three-way intercom, you can completely terminate the intercom or just disconnect an intercom connection with one of your active intercom friends. 1. Press the Jog Dial for 2 seconds until you hear double beeps to terminate three-way intercom completely. It terminates both intercom connections with (B) and (C). 2.
20S (A) First Friend (B) (A) Second Friend (C) First Friend (B) Single Tap Please note that each participant’s intercom friends are the ones adjacent to each other. 15.2.4 End Multi-way Intercom You can completely get out of the multi-way intercom or just disconnect a part of the chain. 1. Press the Jog Dial for 2 seconds until you hear double beeps to terminate multi-way intercom. It terminates the intercom connections between you (A), and all participants in the chain. 2.
20S 15.3 Intercom Failure 15.4 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 20S automatically tries to reconnect the intercom every 8 seconds and you will hear high tone double beeps until the intercom is reestablished. If you don’t want to make a reconnection, tap the Jog Dial to stop the attempt.
20S 17 GROUP INTERCOM You can instantly create a paired group by setting up a Group Intercom through the Sena Smartphone App. 1. Browse your friends in your Sena Smartphone App, and select up to seven other people you want to group with. 2. Press ‘Connect’ to send the data to your 20S headset. 3. Press and hold the Ambient Mode Button for about 1 second or use voice command “Group intercom” to initiate Group Intercom.
20S g g rin (B) rin Non-Sena Bluetooth headsets may initiate the Universal Intercom connection by activating the voice dialing or using the redialing operation. You may also disconnect the existing connection by ending a call operation function (refer to the user’s manual of the headsets for voice dialing, redialing, and ending a call).
20S 3. The other 20S (C) may join the intercom by making an intercom call to you (A). (A) (B) (C) 4. Now you (A), non-Sena Bluetooth headset (B), and the other 20S (C) are having a three-way intercom. You may make a four-way Universal Intercom connection with a couple of different configurations, 1) three 20Ss and one non-Sena Bluetooth headset or 2) two 20Ss and two non-Sena Bluetooth headsets.
20S (A) (A) (C) (D) (B) 3. The non-Sena Bluetooth headset (D) may join the three-way intercom by making an intercom call to the 20S (C). (A) (B) 4. Now two 20S headsets (A & C) and two non-Sena Bluetooth headsets (B & D) are connected with the four-way Universal Intercom. (C) (D) (B) You may disconnect a four-way Universal Intercom using the same way as you do in a normal four-way intercom. Please refer to section 15.2.4, “End Multi-way Intercom”. 18.4.
20S 19 FUNCTION PRIORITY The 20S operates in the following order of priority: (highest) (lowest) Ambient mode Mobile phone Voice command mode by double tapping Intercom Stereo music by audio cable Music sharing by Bluetooth stereo music FM Radio Bluetooth stereo music A lower priority function is always interrupted by a higher priority function. For example, stereo music is interrupted by intercom call, and intercom conversation is interrupted by incoming mobile phone call.
20S The voice prompt for each menu item is as below: (6) Voice prompt (2) Audio multitasking (7) Sidetone (3) I ntercom-audio overlay sensitivity (4) VOX phone (5) HD intercom (8) Delete all pairings (9) Universal intercom pairing (10) Exit configuration Speed dial Audio Multitasking Exit configuration Universal intercom pairing Intercom-audio overlay sensitivity Delete all pairings VOX phone HD intercom Sidetone Voice prompt Voice Prompt English (1) Speed dial 20.
20S 20.3 Setting Intercom-audio Overlay Sensitivity Note: 1. After assigning a phone number to one of three speed dials, you can continually assign another phone number to the rest of two speed dials. 2. You can also assign phone numbers for speed dialing by using the Device Manager software or the Sena Smartphone App. Please visit the Sena Bluetooth website at www.sena.com for more information. 20.
20S 20.4 Enabling/Disabling Voice Activated Phone Answering “VOX phone” Enable Enable Tap the Phone Button Disable Tap the Jog Dial 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 VOX Phone feature does not work if you are connected to intercom.
20S 20.7 Enabling/Disabling Sidetone 20.9 Universal Intercom Pairing Voice Prompt “Sidetone” Voice Prompt “Universal intercom pairing” Factory Default Disable Factory Default N/A Enable Tap the Phone Button Disable Tap the Jog Dial Sidetone is the sound of your own voice as picked up by your headset’s microphone and reproduced in your own ear, by your own speaker. It helps you to naturally speak at the correct level according to varying helmet noise conditions.
20S Tap Phone Button Tap Jog Dial Speed Dial Execute N/A Audio Multitasking Enable Disable Intercom-audio Overlay Sensitivity Enable N/A VOX Phone Enable Disable HD Intercom Enable Disable Voice Prompt Enable Disable Sidetone Enable Disable Delete All Pairings Execute N/A Universal Intercom Pairing None N/A Exit Configuration Execute N/A 21 RESET TO FACTORY DEFAULT SETTINGS English Rotate Jog Dial 1.
20S 22 FAULT RESET When the 20S is not working properly or is in faulty status for any reason, you may reset by pushing the pin-hole reset button at the back of the headset main unit. Insert a paper clip into the reset pinhole and press the reset button for a second with light pressure. The 20S will be switched off, and you have to turn the system back on and try again. However, this will not restore the headset to factory default settings.
20S Case 1 English 24 SENA BLUETOOTH CONNECTION CASE STUDIES Bluetooth Pairing Procedure 1 Mobile Phone Pairing 2 Second Mobile Phone Pairing 3 Intercom Pairing Mobile Phone Mobile Phone Pairing Intercom Pairing Bluetooth GPS* zumo 220/350/550/660/665, TomTom Rider Usage • Mobile phone: phone call, listening to music • GPS: GPS instruction • Intercom Second Mobile Phone Pairing Bluetooth GPS* 47
20S Case 3 Case 2 GPS - Mobile Phone Pairing Bluetooth GPS* Bluetooth GPS* Mobile Phone Mobile Phone Pairing Mobile Phone Pairing Intercom Pairing Bluetooth Pairing Procedure 1 GPS - Mobile Phone Pairing 2 Mobile Phone Pairing 3 Intercom Pairing Bluetooth GPS* zumo 550/660/665, TomTom Rider Usage • GPS zumo 660/665: GPS instruction, phone call, listening to music zumo 550, TomTom Rider: GPS instruction, phone call • Intercom 48 Intercom Pairing Second Mobile Phone Pairing Bluetooth Pairing Proced
20S Case 4 Case 5 English Mobile Phone Mobile Phone Mobile Phone Pairing Mobile Phone Pairing GPS Intercom Pairing Bluetooth Pairing Procedure 1 Mobile Phone Pairing 2 Mobile Phone Pairing 3 Intercom Pairing Bluetooth GPS* Yupiteru, smartphone apps Usage • Mobile Phone: phone call • GPS: GPS instruction • Intercom Mobile Phone Pairing Intercom Pairing Mobile Phone Pairing Motorcycle Bluetooth Audio System* Bluetooth GPS* Music Bluetooth Pairing Procedure 1 Mobile Phone Pairing 2 Mobile Phone Pa
20S Case 6 Bluetooth Pairing Procedure 1 Mobile Phone Pairing 2 Mobile Phone Pairing 3 Second Mobile Phone Pairing 4 Intercom Pairing Mobile Phone Bluetooth GPS* Mobile Phone Pairing zumo 220/350/550/660/665, TomTom Rider Motorcycle Bluetooth Audio System* BMW R1200RT, K1600GT, K1600GTL Intercom Pairing Mobile Phone Motorcycle Bluetooth Pairing Audio System* Second Mobile Phone Pairing Bluetooth GPS* 50 Music Usage • Mobile Phone: phone call • Motorcycle Bluetooth Audio System: listening to mus
20S Case 7 Mobile Phone GPS Mobile Phone Pairing English Bluetooth Pairing Procedure 1 Mobile Phone Pairing 2 Second Mobile Phone Pairing 3 Intercom Pairing Usage • Mobile Phone: phone call • SR10: two-way radio, GPS guidance, Radar detecting signal • Intercom SR10 Second Mobile Phone Pairing Two-way Radio Intercom Pairing Radar Detector 51
20S Case 8 Mobile Phone GPS Mobile Phone Bluetooth GPS* Pairing Mobile Phone Pairing Mobile Phone Pairing MP3 Player Bluetooth GPS* zumo 220/350/550/660/665, TomTom Rider Intercom Pairing 52 Bluetooth Pairing Procedure 1 GPS - Mobile Phone Pairing 2 Mobile Phone Pairing 3 Mobile Phone Pairing 4 Intercom Pairing Usage • GPS: phone call, GPS instruction • MP3 Player: listening to music • Intercom
20S Case 9 Mobile Phone GPS Mobile Phone Pairing SM10 SR10 Second Mobile Phone Pairing English Bluetooth Pairing Procedure 1 Mobile Phone Pairing 2 Mobile Phone Pairing 3 Mobile Phone Pairing 4 Second Mobile Phone Pairing 5 Intercom Pairing Usage • Mobile Phone: phone call • SR10: two-way radio, GPS instruction, Radar detecting signal • SM10: listening to music/sharing • Intercom Mobile Phone Pairing Two-way Radio Intercom Pairing Mobile Phone Pairing Radar Detector 53
20S Case 10 Bluetooth Pairing Procedure 1 Mobile Phone Pairing 2 Mobile Phone Pairing 3 Mobile Phone Pairing 4 Second Mobile Phone Pairing 5 Intercom Pairing Mobile Phone Mobile Phone Pairing Second Mobile Phone Pairing Intercom Pairing Mobile Phone Pairing Mobile Phone Pairing SM10 OR Motorcycle Audio System 54 MP3 Player Bluetooth GPS* zumo 220/350/550/660/665, TomTom Rider Bluetooth GPS* Usage • Mobile Phone: phone call • GPS: GPS instruction • SM10: listening to music/sharing • Intercom
20S Type Basic Function Function Button Command Button Power-on 1 sec Power-off Phone Button + Jog Dial Volume adjustment LED Beep Mobile Phone Function Button Command Button Voice Command Duration LED Beep Speed dial Phone Button Double tapping “Speed dial [one, two, three]” - Mid-tone single beep Reject incoming call Jog Dial 2 sec - - - 6 sec “Pairing intercom” Red flashing Mid-tone single beep - Solid blue Ascending beeps Tapping - Solid red Descending beeps Int
20S Type FM radio Reset Function Button Command Button Voice Command Duration LED Beep Seek stations Jog Dial Rotating while pressing - - High tone triple beeps Scan up FM band Phone Button Double tapping - - - Stop scanning Phone Button Double tapping - - High tone double beeps Save preset while scanning Phone Button Tapping - - High tone double beeps Phone Button 12 sec - Solid red High tone double beeps - - - Factory reset Jog Dial within 5 sec Fault reset Reset
20S FCC Caution Any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void user’s authority to operate the equipment. CE Declaration of Conformity This product is CE marked according to the provisions of the R&TTE Directive (99/5/EC). Hereby, Sena declares that this product is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. For further information, please consult www.sena.com.
20S WEEE (Waste Electrical and Electronic Equipment) The crossed-out wheel bin symbol on the product, literature, or packaging reminds you that all electrical and electronic products, batteries, and accumulators must be taken to separate collection at the end of their working life. This requirement applies to the European Union and other locations where separate collection systems are available.
20S • When using the product, drive at a low speed (slower than 35km/h) for safety. In addition, be certain to conform to laws regarding the use of communications devices while driving. • Do not put the product where it may hamper the driver's vision or manipulate it while driving. This may cause traffic accidents. • Before driving, fasten the product to the helmet, and double-check that it is fastened. Separation of the product while driving may cause damage to the product or accidents.
20S • Store the battery at temperatures of 15°C~25°C (59°F~77°F). Higher or lower temperatures may reduce the capacity and life of the battery, or may cause temporary non-operation. Do not use the product in sub-zero temperature, because it may cause serious reduction of the battery performance. • If you apply heat to the battery or throw it into fire, it may explode. • Do not use the product with a damaged battery. It may explode and/ or cause accidents. • Never use a damaged charger.
20S Notice and Waiver By buying and using this product, you relinquish considerable legal rights including any claim for compensation for damages. Therefore, be certain to read and understand the following terms and conditions before using the product. Use of this product will constitute consent to this agreement, and forfeiture of rights to all claims. If you do not consent to all the terms and conditions of this agreement, return the product for a refund. (Refer to the section “Return for Full Refund”.
20S 6. You must read and completely understand all terms and conditions of legal rights and warnings that are involved in using the product. In addition, usage of the product constitutes acceptance of all terms and conditions regarding waiver of rights. Warranty Exclusions Reasons for Limited Liabilities If you do not return the product after purchasing it, you relinquish all rights to liabilities, loss, claims, and claims for reimbursement of expenses (including attorney's fees).
20S Warranty Service To obtain product warranty service, send the defective product, at your expense, to the manufacturer or the seller along with proof of purchase (a receipt that shows the purchase date, a product registration certificate of the Website, and other relevant information). Take necessary measures to protect the product. In order to get a refund or replacement, you must include the whole package as it was purchased.
1.0.0 www.sena.com User's Guide for Firmware v1.
