2ARRB-HK375IN-EAR WIRELESS MONO HEADSET

订单编号 工厂型号 版本 mm(1:1)2020-05-23 单位 客户 客户品牌 客户型号 日 期工程设计 业务审核 说明书 H714(HK255US);折后65*80mm;70g双胶纸;(展开尺寸260*320) 单色双面印刷;折叠 77-007-***** HK375 H714MMotorola 1.0 工程审核批 准 物料名称 规格/材 质 描 述 物料编码 MODEL: HK375-S FCC ID: 2ARRB-HK375 IC 20353-HK375 MODEL: HK375-S FCC ID: 2ARRB-HK375 IC 20353-HK375 MODEL: HK375-S FCC ID: 2ARRB-HK375 IC 20353-HK375 MODEL: HK375-S FCC ID: 2ARRB-HK375 IC 20353-HK375 If your product is not working properly, read this Quick Start Guide or the User’s Guide of one of the models listed on page 1. Please visit us at: /support Consumer Products and Accessories Limited Warranty (“Warranty”) Thank you for purchasing this Motorola branded product manufactured under license by Meizhou Guo Wei Electronics Co., Ltd. ("MZGW"). What Does this Warranty Cover? Subject to the exclusions contained below, MZGW warrants that this Motorola branded product (“Product”) or certified accessory (“Accessory”) sold for use with this product that it manufactured to be free from defects in materials and workmanship under normal consumer usage for the period outlined below. This Warranty is your exclusive warranty and is not transferable. Who is covered? This Warranty extends only to the first consumer purchaser, and is not transferable. What will do? MZGW or its authorized distributor at its option and within a commercially reasonable time, will at no charge repair or replace any Products or Accessories that does not conform to this Warranty. We may use functionally equivalent reconditioned / refurbished / pre-owned or new Products, Accessories or parts. What Other Limitations Are There? ANY IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE LIMITED TO THE DURATION OF THIS LIMITED WARRANTY, OTHERWISE THE REPAIR OR REPLACEMENT PROVIDED UNDER THIS EXPRESS LIMITED WARRANTY IS THE EXCLUSIVE REMEDY OF THE CONSUMER, AND IS PROVIDED IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. IN NO EVENT Si votre produit ne fonctionne pas correctement, lisez ce Guide de démarrage rapide ou le Guide de l’utilisateur de l’un des modèles indiqués en première page. Veuillez nous rendre visite au: /support Garantie limitée pour les produits et accessoires grand public Merci d’avoir acheté ce produit de marque Motorola fabriqué sous licence par Meizhou Guo Wei Electronics Co., Ltd. ("MZGW"). Que couvre la présente Garantie ? Sous réserve des exclusions indiquées ci-dessous, la société MZGW garantit que ce produit (« Produit ») de marque Motorola ou cet accessoire certifié et vendu pour être utilisé avec le Produit (« Accessoire ») fabriqué par MZGW est exempt de défauts de matériaux et de fabrication, sous réserve d’une utilisation normale pendant la période stipulée ci-dessous. La présente Garantie est votre unique garantie et n’est pas transférable. Qui est couvert par la présente Garantie ? La présente Garantie couvre uniquement le premier acheteur du Produit et n’est pas transférable. Que fera ? MZGWou son distributeur agréé répareraou remplacera gratuitement, à sa discrétion etpendantune période commercialementraisonnable, tout Produit ou Accessoire qui ne serait pasconforme à la présenteGarantie. Nous pourronsutiliser des Produits, Accessoires ou pièces remis à neuf, d’occasion ou neufs, dont lesfoncti onnalitéssont équivalentes. Quelle sont les autres limites de la Garantie ? TOUTE GARANTIE IMPLICITE, Y COMPRIS, SANS S’Y LIMITER, LES GARANTIES IMPLICITES DE QUALITÉ MARCHANDE ET D’ADAPTATION À UN USAGE PARTICULIER, SERA LIMITÉE À LA DURÉE DE LA PRÉSENTE GARANTIE, SINON LA RÉPARATION OU LE REMPLACEMENT FOURNIS EN VERTU DE LA PRÉSENTE GARANTIE LIMITÉE CONSTITUERONT LE SEUL RECOURS DU Si su producto no está funcionando correctamente, lea esta Guía rápida de inicio o la Guía de usuario de uno de los modelos que aparecen en la página 1. Visítenos en: /support Garantía limitada para productos y accesorios de consume (“Garantía”) Gracias por comprar este producto de marca Motorola fabricado bajo licencia otorgada por Meizhou Guo Wei Electronics Co., Ltd. ("MZGW"). ¿Qué cobertura tiene esta Garantía? Sujeto a las exclusiones que aquí se detallan, MZGW garantiza que este producto de marca Motorola (“Producto”) o todo accesorio certificado (“Accesorio”) que se vende para ser utilizado con este producto que fabrica están libres de defectos en los materiales y mano de obra conforme a condiciones normales de uso por parte del consumidor para el período que se detalla a continuación. La presente Garantía es de carácter exclusivo y no es transferible. ¿Quién está cubierto? La presente Garantía cubre solamente al primer comprador usuario y no es transferible. ¿Qué hará ? MZGW o su distribuidor autorizado según su criterio y dentro de un período de tiempo comercialmente razonable, reparará o remplazará sin cargo todo Producto o Accesorio que no se ajuste a esta Garantía. Posiblemente se utilicen Productos, Accesorios o partes funcionalmente similares reacondicionadas/reparadas/ usadas o nuevas. ¿Qué otras limitaciones existen ? CUALQUIER GARANTÍA IMPLÍCITA, INCLUSO LAS GARANTÍAS IMPLÍCITAS DE COMERCIABILIDAD E IDONEIDAD SIN LÍMITE PARA UN DETERMINADO PROPÓSITO, SE DEBEN RESTRINGIR A LA DURACIÓN DE ESTA GARANTÍA LIMITADA. DE LO CONTRARIO, LA REPARACIÓN O Se o seu produto não estiver funcionando adequadamente, leia este Guia de Início Rápido ou o Guia do Usuário de um dos modelos listados na página 1. Visite-nos em: /support Garantia limitada de produtos e acessórios de consumo (“Garantia”) Obrigado por adquirir este produto da marca Motorola fabricado sob licença da Meizhou Guo Wei Electronics Co., Ltd. ("MZGW"). O que esta Garantia cobre? Sujeito às exclusões contidas abaixo, a MZGW garante que este produto da marca Motorola (“Produto”), ou acessório certificado (“Acessório”) vendido para uso com este produto, é fabricado para estar livre de defeitos de materiais e acabamento sob condições normais de uso pelo período descrito abaixo. Esta Garantia …

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Meizhou Guo Wei Electronics Co., Ltd. AD1 Section, Economic Development Area, Dongsheng Industrial District, Meizhou, Guangdong, China Agent Authorization Company: Meizhou Guo Wei Electronics Co., Ltd. Address: AD1 Section, Economic Development Area, Dongsheng Industrial District, Meizhou, Guangdong, China Product Name: IN-EAR WIRELESS MONO HEADSET Model Number(s): HK375-S Product Description: IN-EAR WIRELESS MONO HEADSET We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Apr. 21, 2021 Name: Raymond Leung Title: Engineering Manager Company: Meizhou Guo Wei Electronics Co., Ltd.

Meizhou Guo Wei Electronics Co., Ltd. AD1 Section, Economic Development Area, Dongsheng Industrial District, Meizhou, Guangdong, China Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Apr. 21, 2021 Subject; Request for Confidentiality FCC ID: 2ARRB-HK375 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description Parts List Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Name: Raymond Leung Title: Engineering Manager

External Photos TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT VIEW OF EUT(PORT)

11.696MM 17.554MM IC: 20353-HK375 FCC ID: 2ARRB-HK375 Model: HK375-S Made in China Meizhou Guo Wei Electronics Co., Ltd HK375-S V4 ADD UKCA LOGO

Internal Photos OPEN VIEW OF EUT VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 BT Antenna INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description IN-EAR WIRELESS MONO HEADSET Model Name HK375-S FCC ID 2ARRB-HK375 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v06 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. Where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation 3. CALCULATION P t =1.105dBm=1.29mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(1.29mW /5mm) .[√2.480GHz)]=0.41<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 67 FCC Test Report Report No.: AGC00213210305FE03 FCC ID : 2ARRB-HK375 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : IN-EAR WIRELESS MONO HEADSET BRAND NAME : Motorola MODEL NAME : HK375-S APPLICANT : Meizhou Guo Wei Electronics Co., Ltd. DATE OF ISSUE : Apr. 21, 2021 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC00213210305FE03 Page 2 of 67 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Apr. 21, 2021 Valid Initial Release Report No.: AGC00213210305FE03 Page 3 of 67 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. RECEIVER INPUT BANDWIDTH .............................................................................................................. 7 2.4. EXAMPLE OF A HOPPING SEQUENCY IN DATA MODE ......................................................................... 7 2.5. EQUALLY AVERAGE USE OF FREQUENCIES AND BEHAVIOUR ......................................................... 7 2.6. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................... 8 2.7. TEST METHODOLOGY ............................................................................................................................. 8 2.8. SPECIAL ACCESSORIES ......................................................................................................................... 8 2.9. EQUIPMENT MODIFICATIONS ................................................................................................................. 8 2.10. ANTENNA REQUIREMENT..................................................................................................................... 8 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 9 4. DESCRIPTION OF TEST MODES ................................................................................................................. 10 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 11 5.1. CONFIGURATION OF EUT SYSTEM ...................................................................................................... 11 5.2. EQUIPMENT USED IN TESTED SYSTEM .............................................................................................. 11 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 11 6. TEST FACILITY .............................................................................................................................................. 12 7. PEAK OUTPUT POWER ................................................................................................................................ 13 7.1. MEASUREMENT PROCEDURE ............................................................................................................. 13 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 13 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 14 8. 20DB BANDWIDTH ........................................................................................................................................ 20 8.1. MEASUREMENT PROCEDURE ............................................................................................................. 20 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 20 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 21 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 27 9.1. MEASUREMENT PROCEDURE ............................................................................................................. 27 Report No.: AGC00213210305FE03 Page 4 of 67 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 27 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 27 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 27 10. RADIATED EMISSION ................................................................................................................................. 40 10.1. MEASUREMENT PROCEDURE ........................................................................................................... 40 10.2. TEST SETUP ......................................................................................................................................... 42 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 43 10.4. TEST RESULT........................................................................................................................................ 43 11. NUMBER OF HOPPING FREQUENCY ......................................................…

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Report No.: AGC00213210305FE03 Page 39 of 67 8-DPSK MODULATION IN HIGH CHANNEL Hopping off Hopping on Report No.: AGC00213210305FE03 Page 40 of 67 10. RADIATED EMISSION 10.1. MEASUREMENT PROCEDURE 1. The EUT was placed on the top of the turntable 0.8 or 1.5 meter above ground. The phase center of the receiving antenna mounted on the top of a height-variable antenna tower was placed 3 meters far away from the turntable. 2. Power on the EUT and all the supporting units. The turntable was rotated by 360 degrees to determine the position of the highest radiation. 3. The height of the broadband receiving antenna was varied between one meter and four meters above ground to find the maximum emissions field strength of both horizontal and vertical polarization. 4. For each suspected emission, the antenna tower was scan (from 1 M to 4 M) and then the turntable was rotated (from 0 degree to 360 degrees) to find the maximum reading. 5. Set the test-receiver system to Peak or CISPR quasi-peak Detect Function with specified bandwidth under Maximum Hold Mode. 6. For emissions above 1GHz, use 1MHz RBW and 3MHz VBW for peak reading. Place the measurement antenna away from each area of the EUT determined to be a source of emissions at the specified measurement distance, while keeping the measurement antenna aimed at the source of emissions at each frequency of significant emissions, with polarization oriented for maximum response. The measurement antenna may have to be higher or lower than the EUT, depending on the radiation pattern of the emission and staying aimed at the emission source for receiving the maximum signal. The final measurement antenna elevation shall be that which maximizes the emissions. The measurement antenna elevation for maximum emissions shall be restricted to a range of heights of from 1 m to 4 m above the ground or reference ground plane. 7. When the radiated emissions limits are expressed in terms of the average value of the emissions, and pulsed operation is employed, the measurement field strength shall be determined by averaging over one complete pulse train, including blanking intervals, as long as the pulse train does not exceed 0.1 seconds. As an alternative (provided the transmitter operates for longer than 0.1 seconds) or in cases where the pulse train exceeds 0.1 seconds, the measured field strength shall be determined from the average absolute voltage during a 0.1 second interval during which the field strength is at its maximum values. 8.If the emissions level of the EUT in peak mode was 3 dB lower than the average limit specified, then testing will be stopped and peak values of EUT will be reported, otherwise, the emissions which do not have 3 dB margin will be repeated one by one using the quasi-peak method for below 1GHz. 9. For testing above 1GHz, the emissions level of the EUT in peak mode was lower than average limit (that means the emissions level in peak mode also complies with the limit in average mode), then testing will be stopped and peak values of EUT will be reported, otherwise, the emissions will be measured in average mode again and reported. 10. In case the emission is lower than 30MHz, loop antenna has to be used for measurement and the recorded data should be QP measured by receiver. High - Low scan is not required in this case. Report No.: AGC00213210305FE03 Page 41 of 67 The following table is the setting of spectrum analyzer and receiver. Spectrum Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Start ~Stop Frequency 1GHz~26.5GHz 1MHz/3MHz for Peak, 1MHz/3MHz for Average Receiver Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Report No.: AGC00213210305FE03 Page 42 of 67 10.2. TEST SETUP Radiated Emission Test-Setup Frequency Below 30MHz RADIATED EMISSION TEST SETUP 30MHz-1000MHz RADIATED EMISSION TEST SETUP ABOVE 1000MHz Report No.: AGC00213210305FE03 Page 43 of 67 10.3. LIMITS AND MEASUREMENT RESULT 15.209 Limit in the below table has to be followed Frequencies (MHz) Field Strength (microvolts/meter) Measurement Distance (meters) 0.009~0.490 2400/F(kHz) 300 0.490~1.705 24000/F(kHz) 30 1.705~30.0 30 30 30~88 100 3 88~216 150 3 216~960 200 3 Above 960 500 3 Note: All modes were tested for restricted band radiated emission, the test records reported below are the worst result compared to other modes. 10.4. TEST RESULT RADIATED EMISSION BELOW 30MHz The amplitude of spurious emissions from 9kHz to 30MHz which are attenuated more than 20 dB below the permissible value need not be reported. Report No.: AGC00213210305FE03 Page 44 of 67 RADIATED EMISSION BELOW 1GHz EUT IN-EAR WIRELESS MONO HEADSET Model Name HK375-S Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 9 Antenna Horizontal RESULT: PASS Report No.: AGC00213210305FE03 Page 45 of 67 EUT IN-EAR WIRELESS MONO HEADSET Model Name HK375-S Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 9 Antenna Vertical RESULT: PASS Note: 1. Factor=Antenna Factor + Cable loss, Over= Measurement –Limit. 2. All test modes had been pre-tested. The mode 9 is the worst case and recorded in the report. Report No.: AGC00213210305FE03 Page 46 of 67 RADIATED EMISSION ABOVE 1GHz EUT IN-EAR WIRELESS MONO HEADSET Model Name HK375-S Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 7 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4804.00045.760.0845.8474-28.16 peak 4804.00037.930.0838.0154-15.99 AVG 7206.00040.412.2142.6274-31.38 peak 7206.00032.562.2134.7754-19.23 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT IN-EAR WIRELESS MONO HEADSET Mo…

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Report No.: AGC00213210305FE03 Page 65 of 67 VIEW OF BATTERY INTERNAL VIEW OF EUT-1 BT Antenna Report No.: AGC00213210305FE03 Page 66 of 67 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 Report No.: AGC00213210305FE03 Page 67 of 67 INTERNAL VIEW OF EUT-4 ----END OF REPORT---- Conditions of Issuance of Test Reports 1. All samples and goods are accepted by the Attestation of Global Compliance (Shenzhen) Co., Ltd (the “Company”) solely for testing and reporting in accordance with the following terms and conditions. The company provides its services on the basis that such terms and conditions constitute express agreement between the company and any person, firm or company requesting its services (the “Clients”). 2. Any report issued by Company as a result of this application for testing services (the “Report”) shall be issued in confidence to the Clients and the Report will be strictly treated as such by the Company. It may not be reproduced either in its entirety or in part and it may not be used for advertising or other unauthorized purposes without the written consent of the Company. The Clients to whom the Report is issued may, however, show or send it, or a certified copy thereof prepared by the Company to its customer, supplier or other persons directly concerned. The Company will not, without the consent of the Clients, enter into any discussion or correspondence with any third party concerning the contents of the Report, unless required by the relevant governmental authorities, laws or court orders. 3.The Company shall not be called or be liable to be called to give evidence or testimony on the Report in a court of law without its prior written consent, unless required by the relevant governmental authorities, laws or court orders. 4. The non-CMA report issued by AGC is only permitted to be used by the client as internal reference use and shall not be used for public demonstration purpose. 5. In the event of the improper use of the report as determined by the Company, the Company reserves the right to withdraw it, and to adopt any other additional remedies which may be appropriate. 6. Samples submitted for testing are accepted on the understanding that the Report issued cannot form the basis of, or be the instrument for, any legal action against the Company. 7. The Company will not be liable for or accept responsibility for any loss or damage however arising from the use of information contained in any of its Reports or in any communication whatsoever about its said tests or investigations. 8.Clients wishing to use the Report in court proceedings or arbitration shall inform the Company to that effect prior to submitting the sample for testing. 9. The Company is not responsible for recalling the electronic version of the original report when any revision is made to them. The Client assumes the responsibility to providing the revised version to any interested party who uses them. 10. Subject to the variable length of retention time for test data and report stored hereinto as otherwise specifically required by individual accreditation authorities, the Company will only keep the supporting test data and information of the test report for a period of six years. The data and information will be disposed of after the aforementioned retention period has elapsed. Under no circumstances shall we provide any data and information which has been disposed of after retention period. Under no circumstances shall we be liable for damage of any kind, including (but not limited to) compensatory damages, lost profits, lost data, or any form of special, incidental, indirect, consequential or punitive damages of any kind, whether based on breach of contract of warranty, tort (including negligence), product liability or otherwise, even if we are informed in advance of the possibility of such damages.

Test Setup Photos RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz CONDUCTED TEST SETUP