2AFSG-C27Portable Wireless Speakers

FCC statement FCC Radiation Exposure Statement FCC VOC This device complies with Part 15 of the FCC rules. Operation is subjected 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. Changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment. The equipment complies with FCC/IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. 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. 67

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: Mars Register Agent LLC FRN: 0033790684 Contact Name: Jessie Peng Address: 8932 Mission Dr unit 207City/Province/Zip: Rosemead CA91770 Telephone No: +1 818 579 7288 Email: [email protected] Applicant: Company name: Dongguan Jin wen hua digital technology Co., LTD. Product Description: Portable Wireless Speakers Grantee code: 2AFSG FCC ID: 2AFSG-C27 FRN: 0024857831 Contact Name: Luo Peng Address: NO.1 Hua Da Road, Long Bei Ling Village, Tangxia Town, Dongguan City, Guangdong, China Telephone No: 18802603740 Email: [email protected] [Dongguan Jin wen hua digital technology Co., LTD.] certifies that, as of the date of this filing of the application with the TCB, [Mars Register Agent LLC] is our designated US agent for service of process for the above referenced FCC ID. [Dongguan Jin wen hua digital technology Co., LTD.] accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [Mars Register Agent LLC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2023/08/09 Applicant’s Name: Luo Peng US Agent’s Name: Mars Register Agent LLC Title: Manager Title: Manager 1/1 Signature Signature

C5266091_X24_Ed.2 1/1 DongGuan JinWenHua Digital Technology Co., Ltd. “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: DongGuan JinWenHua Digital Technology Co., Ltd. Grantee code: 2AFSG FCC ID: 2AFSG-C27 Contact Name: Luo Peng Address: No.1 Huada Road, Longbeiling Industry Zone,Tangxia Town, Dongguan City, China Telephone No: 18802603740 Fax No: +86-0769-89195619 Email: Sales01.jwhyx.com i. [DongGuan JinWenHua Digital Technology Co., Ltd.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. The applicant must sign this certification. ii. [DongGuan JinWenHua Digital Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [DongGuan JinWenHua Digital Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] identified on the Covered List as an entity producing “covered”equipment . Date: 2023/8/09 Applicant’s Name: Luo Peng Title: manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Dongguan Jin wen hua digital technology Co., LTD. Product Similarity Declaration Product name: Portable Wireless Speakers Model name: C27/Red-E Go, c27a, c27b, c27c, c27w, c27y, c27r, c27g FCC ID: 2AFSG-C27 We (Dongguan Jin wen hua digital technology Co., LTD.) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, Appearance and physical structure, etc.,), the only difference is the model name, Bluetooth name. Signature: Name: Luo Peng Title: Manager Place, date: 2023/9/18

C5266091_X8_Ed.1 1 / 1 LetterofAuthorization DongguanJinwenhuadigitaltechnologyCo.,LTD. C o m p a n y : D o n g g u a n J i n w e n h u a d i g i t a l t e c h n o l o g y C o . , L T D . A d d r e s s : N O . 1 H u a D a R o a d , L o n g B e i L i n g V i l l a g e , T a n g x i a T o w n , D o n g g u a n C i t y , G u a n g d o n g , C h i n a P r o d u c t N a m e : P o r t a b l e W i r e l e s s S p e a k e r s Model Number:C27/Red-EGo, c27a, c27b, c27c, c27w, c27y, c27r, c27g FCCIdentifier:2AFSG-C27 W e a u t h o r i z e L G A I T e c h n o l o g i c a l C e n t e r S . A . , R o n d a d e l a F o n t d e l C a r m e , s / n , 0 8 1 9 3 B e l l a t e r r a , S p a i n , t o a c t o n o u r b e h a l f o n a l l m a t t e r s c o n c e r n i n g t h e abovenamedequipment. A n y i n d i v i d u a l w i t h i n L G A I T e c h n o l o g i c a l C e n t e r S . A . i s a u t h o r i z e d t o a c t o n o u r b e h a l f a n d t a k e a c t i o n o n t h e a p p l i c a t i o n . W e d e c l a r e t h a t a u t h o r i z e L G A I T e c h n o l o g i c a l C e n t e r S . A . , R o n d a d e l a F o n t d e l C a r m e , s / n , 0 8 1 9 3 B e l l a t e r r a , S p a i n , i s a l l o w e d t o f o r w a r d a l l i n f o r m a t i o n r e l a t e d t o t h e a p p r o v a l p r o j e c t t o t h e F e d e r a l C o m m u n i c a t i o n C o m m i s s i o n a n d todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe s a m e e f f e c t a s a c t s o f o u r o w n . N a m e : L u o P e n g D a t e : 2 0 2 3 / 0 8 / 0 9 T i t l e : M a n a g e r S i g n a t u r e o f a p p l i c a n t :

C5266091_X10_Ed.1 1/1 DongguanJinwenhuadigitaltechnologyCo.,LTD. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2023/08/09 Subject:RequestforConfidentiality FCCID:2AFSG-C27 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo BlockDiagram Schematics TestReportNoNo TestSetupPhotosNo User’sManual InternalPhotos PartsList/TuneUp RFExposureInfo OperationalDescription CoverLetter(s)NoNo SDRSoftware/SecurityInfoNo Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselectedabove arewithheldfrompublicviewforaperiodof_180_daysfromthedateoftheGrantof EquipmentAuthorizationandpriortomarketing. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, Signature: Name:LuoPeng Title:Manager

DongguanJinwenhuadigitaltechnologyCo.,LTD. NO.1HuaDaRoad,LongBeiLingVillage,TangxiaTown,DongguanCity, Guangdong,China DATE:2023/08/09 DongguanJinwenhuadigitaltechnologyCo.,LTD. NO.1HuaDaRoad,LongBeiLingVillage,TangxiaTown,DongguanCity, Guangdong,China Attn:DirectorofCertification AuthoritytoActasAgent Onourbehalf,Iappointbelowcompanyandperson: NameDamonHu PositionManager CompanyNameDongguanDongdianTestingServiceCo.,Ltd. Address17,ZongbuRoad2,SongshanLakeSci&Tech,IndustryPark, DongguanCity,GuangdongProvince,China,523808 Tel/Fax Tel:+86-0769-38826678-850 [email protected] toactasouragentinthepreparationofthisapplicationforequipmentcertification.I certifythatsubmitteddocumentsproperlydescribethedeviceorsystemforwhich equipmentcertificationissought.Ialsocertifythateachunitmanufactured,importedor marketed,asdefinedintheFederalCommunicationsCommission’sregulationswill haveaffixedtoitalabelidenticaltothatsubmittedforapprovalwiththisapplication. ApplicantnameDongguanJinwenhuadigitaltechnologyCo.,LTD. AddressNO.1HuaDaRoad,LongBeiLingVillage,TangxiaTown,Dongguan City,Guangdong,China Yourssincerely, Signatory NameLuoPeng PositionManager CompanyNameDongguanJinwenhuadigitaltechnologyCo.,LTD. AddressNO.1HuaDaRoad,LongBeiLingVillage,TangxiaTown,Dongguan City,Guangdong,China Tel/Fax18802603740/+86-0769-89195619 [email protected]

Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 1 of 13 AppendixI: Photos of the EUT Product Name : Portable Wireless Speakers Model Number : C27/Red-E Go Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 2 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 3 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 4 of 13

CET PRODUCT SERVICE SP. Z O.O. Ul. Dluga 33 102 Zgierz 95-100 Polen CET Product Service Ltd. Beacon House Stokenchurch Business Park, Ibstone Rd, Stokenchurch High Wycombe HP14 3FE U Mars Register Agent LLC 8932 MISSION DR 207 ROSEMEAD, CA 91770 Address: No.1 Huada Road, Longbeiling Industry Zone,Tangxia Town, Dongguan Model: C27/Red-E Go Rated voltage: 5V Rated current: 1A Battery: 3.7V 2500mAh FCC ID: 2AFSG-C27 Manufacturrer: Dongguan Jinwenhua Digital Technology Co., Ltd City, China 523700 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 interferenceand(2) this device must acce interferencereceived including interference that may cause undesired operation MADE IN CHINA

Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 5 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 6 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 7 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 8 of 13 ANTENNA Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 9 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 10 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 11 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 12 of 13 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23061523-1E Page 13 of 13 END

Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23061523-2E02 Page 1 of 6 RF EXPOSURE REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : DongGuan JinWenHua Digital Technology Co., Ltd. Address : No.1 Huada Road, Longbeiling Industry Zone,Tangxia Town, Dongguan City, China Equipment under Test : Portable Wireless Speakers Model No. : C27/Red-E Go, c27a, c27b, c27c, c27w, c27y, c27r, c27g Trade Mark : N/A FCC ID : 2AFSG-C27 Manufacturer : DongGuan JinWenHua Digital Technology Co., Ltd. Address : No.1 Huada Road, Longbeiling Industry Zone,Tangxia Town, Dongguan City, China Report No.: DDT-RE23061523-2E02 Issued Date: Aug. 07, 2023 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23061523-2E02 Page 2 of 6 Table of Contents Test report declares........................................................................................................3 1. General Information ....................................................................................................... 5 1.1. Description of equipment ............................................................................................... 5 1.2. Assess laboratory ........................................................................................................... 5 2. RF Exposure evaluation for FCC ................................................................................... 6 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23061523-2E02 Page 3 of 6 Test Report Declare Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is assessed by Dongguan Dongdian Testing Service Co., Ltd. and in the configuration assessed the equipment complied with the standards specified above. The assessed results are contained in this report and Dongguan Dongdian Testing Service Co., Ltd. is assumed of full responsibility for the accuracy and completeness of these assess. After evaluation, our opinion is that the equipment In Accordance with above standard. Report No.: DDT-RE23061523-2E02 Date of Receipt: Jul. 03, 2023 Date of Test: Jul. 03, 2023 ~ Aug. 07, 2023 Prepared By: Approved By: _____________________ ______________________ Jacky Huang/Engineer Damon Hu/EMC Manager Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Dongguan Dongdian Testing Service Co., Ltd. Applicant : DongGuan JinWenHua Digital Technology Co., Ltd. Address : No.1 Huada Road, Longbeiling Industry Zone,Tangxia Town, Dongguan City, China Equipment under Test : Portable Wireless Speakers Model No. : C27/Red-E Go, c27a, c27b, c27c, c27w, c27y, c27r, c27g Trade mark : N/A Manufacturer : DongGuan JinWenHua Digital Technology Co., Ltd. Address : No.1 Huada Road, Longbeiling Industry Zone,Tangxia Town, Dongguan City, China Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23061523-2E02 Page 4 of 6 Revision History Rev. Revisions Issue Date Revised By --- Initial issue Aug. 07, 2023 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23061523-2E02 Page 5 of 6 1. General Information 1.1. Description of equipment 1.2. Assess laboratory Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808. Tel.: +86-0769-38826678, http://www.dgddt.com, Email: [email protected]. CNAS Accreditation No. L6451; A2LA Accreditation Number: 3870.01 FCC Designation Number: CN1182, Test Firm Registration Number: 540522 Innovation, Science and Economic Development Canada Site Registration Number: 10288A Conformity Assessment Body identifier: CN0048 VCCI facility registration number: C-20087, T-20088, R-20123, R-20155, G-20118 EUT Name : Portable Wireless Speakers Model Number : C27/Red-E Go, c27a, c27b, c27c, c27w, c27y, c27r, c27g Model Difference : All models are identical except the Bluetooth name and model number, therefore the test performed on the model C27/Red-E Go. EUT function description : Please reference user manual of this device Power Supply : DC 5V by Type-C port DC 3.7V Polymer Li-ion built-in battery Radio Specification : Bluetooth V5.3 Operation Frequency : 2402 MHz - 2480 MHz Modulation : GFSK, /4-DQPSK Data Rate : 1 Mbps, 2 Mbps Antenna : PCB antenna, maximum PK gain: -0.58 dBi Sample Number : S23061523-06 for conductive S23061523-07 for radiation Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23061523-2E02 Page 6 of 6 2. RF Exposure evaluation for FCC 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 The result is rounded to one decimal place for comparison Manufacturing Tolerance BT GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3.03 -2.64 -2.60 Tolerance ±(dB) 1.50 1.50 1.50 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -2.10 -1.70 -1.67 Tolerance ±(dB) 1.50 1.50 1.50 Estimtion Result Worse case is as below: [2480 MHz, -0.17 dBm, (0.96 mW) output power] (0.96/5) ·[√2.480(GHz)] = 0.30 < 3.0 for 1-g SAR Then SAR evaluation is not required. END OF REPORT

InvertedFAntennaSpecification Summary ITEMANTSPEC ModelName 2.4GANT Center Frequency HorizontalVertical 2400MH z 2400MHz2500MHz2400MHz2400MHz2500MHz -1.26 -0.76-0.58 -5.25 -2.46-1.86 MAX.Gain-0.58dB PolarizationHorizontalandVertical AzimuthBeam Pattern Omni-directional Impedance 50Ohm AntennaLength 38.20mm Manufacture ZHUHAIJIELITECHNOLOGYCO.,LTD Manufacturer'saddress333KexingRd.,NanpingTown,XiangzhouDist.,ZhuhaiCity,Guangdong Province,China AntennaPhoto&Length(mm) Horizontal:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-40Scale:5/div Frequency (MHz) Gain(dB) Max MinAvg 2400 -1.26174 -30.0801-7.18716 2450-0.765802-36.5604-7.48023 2500-0.585582 -22.0315 -6.59127 Vertical:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-30Scale:5/div Frequency (MHz) Gain(dB) Max MinAvg 2400-5.2537 -22.1424-12.4294 2450 -2.4652-24.5837 -10.4702 2500 -1.86120 -29.5214-9.20432 ANTTestLabs：AttestationofGlobalComplianceCo.,Ltd.

Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 1 of 70 FCC CERTIFICATION TEST REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : DongGuan JinWenHua Digital Technology Co., Ltd. Address : No.1 Huada Road, Longbeiling Industry Zone,Tangxia Town, Dongguan City, China Equipment under Test : Portable Wireless Speakers Model No. : C27/Red-E Go, c27a, c27b, c27c, c27w, c27y, c27r, c27g Trade Mark : N/A FCC ID : 2AFSG-C27 Manufacturer : DongGuan JinWenHua Digital Technology Co., Ltd. Address : No.1 Huada Road, Longbeiling Industry Zone,Tangxia Town, Dongguan City, China Report No.: DDT-RE23061523-2E01 Issued Date: Aug. 07, 2023 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 2 of 70 Table of Contents Test report declares.......................................................................................................4 1. Summary of Test Results ............................................................................................... 6 2. General Test Information ............................................................................................... 7 2.1. Description of EUT ......................................................................................................... 7 2.2. Accessories of EUT ........................................................................................................ 8 2.3. Assistant equipment used for test .................................................................................. 8 2.4. Block diagram of EUT configuration for test .................................................................. 8 2.5. Deviations of test standard............................................................................................. 9 2.6. Test environment conditions .......................................................................................... 9 2.7. Test laboratory ............................................................................................................... 9 2.8. Measurement uncertainty ............................................................................................. 10 3. Equipment Used During Test ....................................................................................... 11 4. Maximum Peak Output Power ..................................................................................... 12 4.1. Block diagram of test setup .......................................................................................... 12 4.2. Limits ............................................................................................................................ 12 4.3. Test procedure ............................................................................................................. 12 4.4. Test result ..................................................................................................................... 12 4.5. Original test data .......................................................................................................... 13 5. 20 dB Bandwidth and 99% Bandwidth ......................................................................... 15 5.1. Block diagram of test setup .......................................................................................... 15 5.2. Limits ............................................................................................................................ 15 5.3. Test procedure ............................................................................................................. 15 5.4. Test result ..................................................................................................................... 15 5.5. Original test data .......................................................................................................... 16 6. Carrier Frequency Separation ...................................................................................... 20 6.1. Block diagram of test setup .......................................................................................... 20 6.2. Limits ............................................................................................................................ 20 6.3. Test procedure ............................................................................................................. 20 6.4. Test result ..................................................................................................................... 20 6.5. Original test data .......................................................................................................... 21 7. Number of Hopping Channel ....................................................................................... 22 7.1. Block diagram of test setup .......................................................................................... 22 7.2. Limits ............................................................................................................................ 22 7.3. Test procedure ............................................................................................................. 22 7.4. Test result ..................................................................................................................... 22 7.5. Original test data .......................................................................................................... 23 8. Dwell Time .................................................................................................................... 24 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 3 of 70 8.1. Block diagram of test setup ...................................................................................…

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 46 of 70 11. RF Conducted Spurious Emissions 11.1. Block diagram of test setup Same as section 4.1 11.2. Limits In any 100 kHz bandwidth outside the frequency bands in which the spread spectrum intentional radiator in operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power. 11.3. Test procedure (1) Connect EUT’s antenna output to spectrum analyzer by RF cable. (2) Establish a reference level by using the following procedure: Center frequency Test frequency RBW: 100 kHz VBW: 300 kHz Span Wide enough to capture the peak level of the in-band emission Detector Mode: Peak Sweep time: auto Trace mode Max hold (3) Allow the trace to stabilize, use the peak marker function to determine the maximum peak power level to establish the reference level. (4) Set the spectrum analyzer as follows: RBW: 100 kHz VBW: 300 kHz Span Encompass frequency range to be measured Number of measurement points ≥span/RB Detector Mode: Peak Sweep time: auto Trace mode Max hold (5) Allow the trace to stabilize, use the peak marker function to determine the maximum amplitude of all unwanted emissions outside of the authorized frequency band Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 47 of 70 11.4. Test result Mode Frequency (MHz) Verdict GFSK Hopping off 2402 Pass Hopping off 2441 Pass Hopping off 2480 Pass /4-DQPSK Hopping off 2402 Pass Hopping off 2441 Pass Hopping off 2480 Pass 11.5. Original test data DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 48 of 70 DH5_Ant1_2402_1000~26500 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 49 of 70 DH5_Ant1_2441_1000~26500 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 50 of 70 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 51 of 70 2DH5_Ant1_2402_1000~26500 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 52 of 70 2DH5_Ant1_2441_1000~26500 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 53 of 70 2DH5_Ant1_2480_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 54 of 70 12. Band Edge Compliance (Radiated Method) 12.1. Block diagram of test setup 12.2. Limit All restriction band should comply with 15.209, other emission should be at least 20 dB below the fundamental. 12.3. Test procedure Same with clause 10.3 except change investigated frequency range from 2310 MHz to 2410 MHz and 2475 MHz to 2500 MHz. Remark: All restriction band have been tested, and only the worst case is shown in report. 12.4. Test result Pass. (See below detailed test result) Remark: hopping on and hopping off mode all have been test, hopping off mode is worse and reported only, the worst case recorded in this report. Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23061523-2E01 Page 55 of 70 TR-4-E-009 Radiated Emission Test Result Test Date: 2023-07-08 Tested By: Bairong EUT: Portable Wireless Speakers Model Number: C27/RED-E GO Test Mode: TX Mode Power Supply: DC 5V Condition: Temp:22.4°C;Humi:66.5% Test Site: DDT 3# Chamber File Path: d:\ts\2023 report data\Q23061523-2E C27/RED-E GO\FCC ABOVE 1G\7 Memo: DH5 2402 Test Graph Suspected Data List NO . Freq. [MHz] Reading [dBμV/m ] Cable loss [dB] Antenna Factor [dB] AMP [dB] Level [dBμV /m] Limit [dBμV /m] Margin [dB] Detector Polarity 1 2381.99 52.41 3.86 27.46 -40.12 43.61 74.00 30.39 PK Horizontal 2 2390.00 47.47 3.87 27.48 -40.13 38.69 74.00 35.31 PK Horizontal Note: 1. Level = Reading + Cable loss + Antenna Factor + AMP 2. If Peak Result complies with AV limit, AV Result is deemed to comply with AV limit. 3. Test setup: RBW: 1 MHz, VBW: 3 MHz, Sweep time: auto. Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23…

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