2A5DB-SA11Sentien Audio

User Guide 1. Charge 2. Pair 3. Connect Charge the headset with the included USB-C cable. The LED light will turn from red to purple when charging is complete. Start with your headphones off. Enter pairing mode by holding THE BUTTON (on the bottom right side) until you hear the voice prompt “power on” and beep. In the pairing mode, the LED light flashes purple and red (the right upper side) Hold THE BUTTON → (power on & beep) → pairing mode Hold THE BUTTON → (power on) → autoconnect Double press THE BUTTON → (pairing) → pairing mode Open your device’s Bluetooth® menu and select “SENTIEN” voice says “Connected” and the LED light will stops flashing. THE BUTTON 2x Touchpads LED indicators THE BUTTON functions Solid redCharging Solid purpleCharging complete Flashes red and purplePairing mode Power ON/OFF Hold Enter pairing mode Double press (in powered ON/Connected mode) THE FIRST BOOT | AFTER CONNECTION |

Manufacturer declarations Warranty: Sentien HQ s.r.o. gives a limited warranty of 24 months on this product. For the current warranty conditions, please visit our website at www.sentienhq.com/warranty. Before putting the product into operation, please observe the respective country specific regulations. Returns: We have a 14-day return policy, which means you have 14 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at [email protected]. Please note that returns will need to be sent to the following address: Sentien HQ, s.r.o., Jankovcova 1522/53, 170 00, Prague, Czechia If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question [email protected]. ● Damages and issues: Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. ● Exceptions / non-returnable items: Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards. ● Exchanges: The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. ● European Union14-daycooling off period: Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. ● Refunds: We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too. If more than 15 business days have passed since we’ve approved your return, please contact us at [email protected]. Battery: CAUTION RISK OF EXPLOSION IFTHE BATTERYIS REPLACEDBY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THEINSTRUCTIONS. Sound Pressure: Excessive sound pressure from earphones and headphones can cause hearing loss. WEEE Declaration of Conformity: This WEEE logo means that this product must not be discarded as household waste, and should be delivered to an appropriate collection facility for recycling. Proper disposal and recycling helps protect natural resources, human health and the environment. For more information on disposal and recycling of this product, contact your local municipality, disposal service, or the shop where you bought this product. CE Declaration of Conformity: Hereby, Sentien HQ s.r.o. declares that this product is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU and all other applicable EU Directive requirements. The complete declaration of conformity can be found at:www.sentienhq.com. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Statement: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ● Reorient or relocate the receiving antenna. ● Increase the separation between the equipment and receiver. ● Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. ● Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC/IC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency (RF) Exposure Guidelines and RSS-102 of the IC radio frequency (RF) Exposure rules. This equipment has very low levels of RF energy that is deemed to comply without testing of specific absorption rate (SAR). Industry Canada: This device complies with Industry Canadalicense-exemptRSS standard(s): Operation is subject to the following Two conditions: (1)This device may not cause interference, and (2)This device must accept any interference, including interference that may cause undesir…

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Page 1 of 4 External Photos Product name : Sentien Audio Applicant : Sentien HQ s.r.o. FCC ID : 2A5DB-SA11 IC : 28301-SA11 Project number: P000055333 External photo module Project number: P000055333 External photo module Page 2 of 4 Table of Contents 1 External Photos ........................................................................................................................................ 3 1.1 3D View ................................................................................................................................................. 3 1.2 Side view ............................................................................................................................................... 3 1.3 Bottom view .......................................................................................................................................... 4 Project number: P000055333 External photo module Page 3 of 4 1 External Photos 1.1 3D View 1.2 Side view Project number: P000055333 External photo module Page 4 of 4 1.3 Bottom view

Page 4 of 88 Report No:22PP188-01_0 Copy of marking plate:

Page 1 of 5 Internal Photos Product name : Sentien Audio Applicant : Sentien HQ s.r.o. FCC ID : 2A5DB-SA11 IC ID : 28301-SA11 Project number: P000055333 Internal photo module Project number: P000055333 Internal photo module Page 2 of 5 Table of Contents 1 Internal Photos ........................................................................................................................................ 3 1.1 Overview ............................................................................................................................................... 3 1.2 PCB 1 Top view ...................................................................................................................................... 4 1.3 Internal view ......................................................................................................................................... 5 Project number: P000055333 Internal photo module Page 3 of 5 1 Internal Photos 1.1 Overview Note: Full device shown exploded on a board for testing purposes. Project number: P000055333 Internal photo module Page 4 of 5 1.2 PCB 1 Top view Main RF board Project number: P000055333 Internal photo module Page 5 of 5 1.3 Internal view

Page 1 of 7 FCC SAR Exclusion Report Product name : Sentien Audio Applicant : Sentien HQ s.r.o. FCC ID : 2A5DB-SA11 Test report No. : P000055333 002 Ver 1.0 Report number: P000055333 002 Ver 1.0 Page 1 of 7 Laboratory information Accreditation Telefication complies with the accreditation criteria for test laboratories as laid down in ISO/IEC 17025:2017. The accreditation covers the quality system of the laboratory as well as the specific activities as described in the authorized annex bearing the accreditation number L021 and is granted on 30 November 1990 by the Dutch Council For Accreditation (RvA: Raad voor Accreditatie). Telefication is designated by the FCC as an Accredited Test Firm for compliance testing of equipment subject to Certification under Parts 15 & 18. The Designation number is: NL0001. Telefication is a Wireless Device Testing laboratory recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements. The Industry Canada company number for Telefication is: 4173A. Telefication is a registered Conformity Assessment body (CAB) under the Japan-EC MRA (Agreement on Mutual Recognition between Japan and the European Community). The registration number is: 201. Documentation The test report must always be reproduced in full; reproduction of an excerpt only is subject to written approval of the testing laboratory. The documentation of the testing performed on the tested devices is archived for 10 years at Telefication Netherlands. Testing Location Test Site Kiwa Telefication BV Test Site location Wilmersdorf 50 7327 AC Apeldoorn The Netherlands Tel. +31 88998 3393 Test Site FCC NL0001 CABID NL0001 Report number: P000055333 002 Ver 1.0 Page 2 of 7 Revision History Version Date Remarks By V0.5 10-05-2022 Draft PvW V1.0 28-07-2022 Initial release PvW Report number: P000055333 002 Ver 1.0 Page 3 of 7 Table of Contents Revision History ............................................................................................................................................... 2 1 General Description ................................................................................................................................. 4 1.1 Applicant ............................................................................................................................................... 4 1.2 Manufacturer ........................................................................................................................................ 4 1.3 Tested Equipment Under Test (EUT) ..................................................................................................... 4 1.4 Applicable standards ............................................................................................................................. 4 1.5 Conclusions ........................................................................................................................................... 5 2 SAR exclusion Evaluation ......................................................................................................................... 6 2.1 Transmitter specifications ..................................................................................................................... 6 2.2 Evaluation calculations .......................................................................................................................... 7 2.3 Conclusion ............................................................................................................................................. 7 Report number: P000055333 002 Ver 1.0 Page 4 of 7 1 General Description 1.1 Applicant Client name: Sentien HQ s.r.o. Address: Jankovcova 1522 / 53; 170 00 Prague; Czech Republic Telephone: +420 606 895 278 E-mail: [email protected] Contact name: Imrich Valach 1.2 Manufacturer Client name: Sentien HQ s.r.o. Address: Jankovcova 1522 / 53; 170 00 Prague; Czech Republic Telephone: +420 606 895 278 E-mail: [email protected] Contact name: Imrich Valach 1.3 Tested Equipment Under Test (EUT) Product name: Sentien Audio Brand name: Sentien Audio FCC ID: 2A5DB-SA11 Product type: Wireless headset Model(s): SA-1 Batch and/or serial No. -- Software version: 1.1 Hardware version: SA-5 Date of receipt: 03-03-2022 1.4 Applicable standards 47 CFR § 1.1307 (b)(1)(i)(A) Report number: P000055333 002 Ver 1.0 Page 5 of 7 1.5 Conclusions The sample of the product showed NO NON-COMPLIANCES to the specifications stated in paragraph 1.4 of this report. The results of the test as stated in this report, are exclusively applicable to the product items as identified in this report. Telefication accepts no responsibility for any properties of product items in this test report, which are not supported by the tests as specified in paragraph 1.4 “Applicable standards”. Assessment is performed by: Name : P. van Wanrooij, BASc Review of assessment methods and report by: Name : R. Tolud The above conclusions have been verified by the following signatory: Date : 29-07-2022 Name : Koray Korcum, Msc Function : Test Engineer Signature : Report number: P000055333 002 Ver 1.0 Page 6 of 7 2 SAR exclusion Evaluation 2.1 Transmitter specifications BLE Variable (unit) Value Symbol Conducted time-averaged output power (mW) 2.60 P Time-averaged output power ERP (mW) 3.16 P ERP Operating frequency range (MHz) 2402-2480 f Separation distance (cm) 0.5 d Separation distance (m) 0.005 R BT/BT EDR Variable (unit) Value Symbol Conducted time-averaged output power (mW) 2.09 P Time-averaged output power ERP (mW) -- P ERP Operating frequency range (MHz) 2402-2480 f Separation distance (cm) 0.5 D Separation distance (m) 0.005 R BLE and BT/BT EDR can not transmit simultaneously so each transmitter is evaluated separately. Report number: P000055333 002 Ver 1.0 Page 7 of 7 2.2 Evaluation calculations BLE BLE is evaluated according to method B of KDB 447498 D04 v01 Method B: 푃 푡ℎ ( 푚푊 ) ={ 퐸푅푃 20푐푚 ( 푑 20푐…

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FCC and IC Test report for parts 15.209, 15.247 RSS-210, RSS-247, RSS-Gen Product name : Sentien Audio Applicant : Sentien HQ s.r.o. FCC ID : 2A5DB-SA11 IC : 28301-SA11 Test report No. : P00005533 001 Ver 3.0 Report number: P00005533 001 Ver 3.0 Page 1 of 52 Laboratory information Accreditation Telefication complies with the accreditation criteria for test laboratories as laid down in ISO/IEC 17025:2017. The accreditation covers the quality system of the laboratory as well as the specific activities as described in the authorized annex bearing the accreditation number L021 and is granted on 30 November 1990 by the Dutch Council For Accreditation (RvA: Raad voor Accreditatie). Telefication is designated by the FCC as an Accredited Test Firm for compliance testing of equipment subject to Certification under Parts 15 & 18. The Designation number is: NL0001. Telefication is a Wireless Device Testing laboratory recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements. The Industry Canada company number for Telefication is: 4173A. The CABID is NL0001. Telefication is a registered Conformity Assessment body (CAB) under the Japan-EC MRA (Agreement on Mutual Recognition between Japan and the European Community). The registration number is: 201. Documentation The test report must always be reproduced in full; reproduction of an excerpt only is subject to written approval of the testing laboratory. The documentation of the testing performed on the tested devices is archived for 10 years at Telefication Netherlands. Testing Location Test Site Kiwa Telefication BV Test Site location Wilmersdorf 50 7327 AC Apeldoorn The Netherlands Tel. +31 88998 3393 Test Site FCC NL0001 CABID NL0001 Report number: P00005533 001 Ver 3.0 Page 2 of 52 Revision History Version Date Remarks By v0.5 09-05-2022 First draft PvW v1.0 28-07-2022 Initial release PvW V2.0 10-08-2022 Updated hardware revision PvW V3.0 16-08-2022 Added AC conducted emission results Clarified test method in clause 3.4 and 3.6 PvW Report number: P00005533 001 Ver 3.0 Page 3 of 52 Table of Contents Revision History ............................................................................................................................................... 2 Summary of Test results .................................................................................................................................. 6 1 General Description ................................................................................................................................. 7 1.1 Applicant ............................................................................................................................................... 7 1.2 Manufacturer ........................................................................................................................................ 7 1.3 Tested Equipment Under Test (EUT) ..................................................................................................... 7 1.4 Product specifications of Equipment under test ................................................................................... 8 1.5 Environmental conditions ..................................................................................................................... 8 1.6 Measurement standards ....................................................................................................................... 8 1.7 Applicable standards ............................................................................................................................. 8 1.8 Observation and remarks ...................................................................................................................... 8 1.9 Conclusions ........................................................................................................................................... 9 2 Test configuration of the Equipment Under Test .................................................................................... 10 2.1 Test mode ........................................................................................................................................... 10 2.2 Test setups .......................................................................................................................................... 10 2.3 Equipment used in the test configuration .......................................................................................... 12 2.4 Sample calculations ............................................................................................................................. 12 3 Test results ............................................................................................................................................. 13 3.1 Radiated spurious emissions ............................................................................................................... 13 3.1.1 Limit ................................................................................................................................................ 13 3.1.2 Measurement instruments ............................................................................................................. 13 3.1.3 Test setup ....................................................................................................................................... 13 3.1.4 Test procedure ................................................................................................................................ 13 3.1.5 Measurement Uncertainty ............................................................................................................. 13 3.1.6 Peak tables of the radiated spurious emissions measurement (BLE) ............................................. 14 3.1.7 Plots of the Radiated Spurious Emissions Measurement (BLE) ....................................................…

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Page 1 of 5 Test Setup Photos Product name : Sentien Audio Applicant : Sentien HQ s.r.o. FCC ID : 2A5DB-SA11 IC : 28301-SA11 Project number: P000055333 Test setup photo module Project number: P000055333 test setup photo module Page 2 of 5 Table of Contents 1 Test Setup Photos .................................................................................................................................... 3 1.1 Radiated emissions measurement 9 kHz – 30 MHz .............................................................................. 3 1.2 Radiated emissions measurement 30 – 250 MHz ................................................................................. 3 1.3 Radiated emissions measurement 250 – 1000 MHz ............................................................................. 4 1.4 Radiated emissions measurement 1 – 18 GHz ...................................................................................... 4 1.5 Radiated emissions measurement 18 - 26 GHz..................................................................................... 5 Project number: P000055333 test setup photo module Page 3 of 5 1 Test Setup Photos 1.1 Radiated emissions measurement 9 kHz – 30 MHz 1.2 Radiated emissions measurement 30 – 250 MHz Project number: P000055333 test setup photo module Page 4 of 5 1.3 Radiated emissions measurement 250 – 1000 MHz 1.4 Radiated emissions measurement 1 – 18 GHz Project number: P000055333 test setup photo module Page 5 of 5 1.5 Radiated emissions measurement 18 - 26 GHz