2ARN3-040711BFull-duplex Wireless Intercom Headset System

ShenzhenJiayzphotoindustrial.,Ltd A16Building,IntelligentTerminalIndustrialParkofSiliconValleyPower,Guanlan,LonghuaDistrict,Shenzhen,China FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:Sep.06,2024 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2ARN3-040711B FRN:0027973098 [ShenzhenJiayzphotoindustrial.,Ltd](“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Sincerely, (Applicantsignature) (michaelzhao)

ShenzhenJiayzphotoindustrial.,Ltd A16Building,IntelligentTerminalIndustrialParkofSiliconValleyPower,Guanlan,LonghuaDistrict,Shenzhen,China FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:Sep.06,2024 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2ARN3-040711B FRN:0027973098 [ShenzhenJiayzphotoindustrial.,Ltd](“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredListasanentityproducing“covered” equipment. Sincerely, (Applicantsignature) (michaelzhao)

U.S. AGENTLETTEROF ATTESTATION Date: 2023-08-06 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2ARN3-040711B Shenzhen Jiayz photo industrial ., Ltd certifies that, as of the date of the filing of the application, Mamiya America Corporation is our designated U.S. agent for service of process for the above referenced FCC ID. Shenzhen Jiayz photo industrial ., 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 the equipment. Mamiya America Corporation accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Mamiya America Corporation Address: 75 Virginia Rd White Plains, NY 10063 FRN: 0033742214 Tel.: (914) 345-5436 Email: [email protected] Signed by (printed name): Joseph Nassar Signature: Applicant:ShenzhenJiayz photo industrial., Ltd Address:A16 Building,IntelligentTerminalIndustrialPark of SiliconValleyPower, Guanlan,LonghuaDistrict,Shenzhen,China FRN: 0027973098 Tel: 0755-28435911 Email:[email protected] Signedby (printedname) : MichaelZhao Signature:

Shenzhen Jiayz photo industrial.,Ltd A16 Building, Intelligent Terminal Industrial Park of Silicon Valley Power, Guanlan, Longhua District, Shenzhen, China Sep. 06, 2024 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID: 2ARN3-040711B Models: WiTalk9 SRH, WiTalk9 DRH To Whom It May Concern: We, The Shenzhen Jiayz photo industrial.,Ltd hereby declare that the model : WiTalk9 DRH is identical with the model : WiTalk9 SRH, except for the model name. Sincerely, Shenzhen Jiayz photo industrial.,Ltd Signature: [michael zhao / Manager]

Letter of Authorization Company: Shenzhen Jiayz photo industrial.,Ltd Address: A16 Building,Intelligent Terminal Industrial Park of Silicon Valley Power, Guanlan, Longhua District, Shenzhen, China Product Name: Full-duplex Wireless Intercom Headset System Model Number(s): WiTalk9 SRH, WiTalk9 DRH Product Description: Full-duplex Wireless Intercom Headset System 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: Sep. 06, 2024 Name: michael zhao Title: Manager Company: Shenzhen Jiayz photo industrial.,Ltd

ShenzhenJiayzphotoindustrial.,Ltd A16Building,IntelligentTerminalIndustrialParkofSiliconValleyPower,Guanlan,LonghuaDistrict,Shenzhen,China OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:Sep.06,2024 Subject;RequestforConfidentiality FCCID:2ARN3-040711B ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram OperationalDescription PartsList Tune-upProcedure SoftwareSecurityDescription Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:michaelzhao Title:manager

The MIC Logo height is 3mm*3mm. 27.34mm*5.94mm

CALIBRATION DATA PROBE CALIBRATION DATA DIPOLE CALIBRATION DATA

Page 1 of 37 SAR Test Report Report No.: AGC09691240702FH01 FCC ID : 2ARN3-040711B APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Full-duplex Wireless Intercom Headset System BRAND NAME : Saramonic MODEL NAME : WiTalk9 SRH, WiTalk9 DRH APPLICANT : Shenzhen Jiayz photo industrial., Ltd DATE OF ISSUE : Sep. 05, 2024 STANDARD(S) : IEEE Std. 1528:2013 FCC 47 CFR Part 2§2.1093 IEEE Std C95.1 ™-2005 REPORT VERSION : V1.0 Attestation of Global Compliance(Shenzhen) Co., Ltd. Report No.: AGC09691240702FH01 Page 2 of 37 Report Revise Record Report Version Revise Time Issued Date Valid Version Notes V1.0 / Sep. 05, 2024 Valid Initial Release Report No.: AGC09691240702FH01 Page 3 of 37 Test Report Applicant Name Shenzhen Jiayz photo industrial., Ltd Applicant Address A16 Building, Intelligent Terminal Industrial Park of Silicon Valley Power, Guanlan, Longhua District, Shenzhen, China Manufacturer Name Shenzhen Jiayz photo industrial., Ltd Manufacturer Address A16 Building, Intelligent Terminal Industrial Park of Silicon Valley Power, Guanlan, Longhua District, Shenzhen, China Factory Name Shenzhen Jiayz photo industrial., Ltd Factory Address A16 Building, Intelligent Terminal Industrial Park of Silicon Valley Power, Guanlan, Longhua District, Shenzhen, China Product Designation Full-duplex Wireless Intercom Headset System Brand Name Saramonic Model Name WiTalk9 SRH Series Models WiTalk9 DRH Declaration of Difference All the same except for the model name EUT Voltage DC 3.7V by battery Applicable Standard IEEE Std. 1528:2013 FCC 47 CFR Part 2§2.1093 IEEE Std C95.1 ™-2005 Date of receipt of test item Jul. 17, 2024 Test Date Aug. 24, 2024 Report Template AGCRT-US-1.8G/SAR (2021-04-20) Note: The results of testing in this report apply to the product/system which was tested only. Prepared By Bibo Zhang (Project Engineer) Sep. 05, 2024 Reviewed By Calvin Liu (Reviewer) Sep. 05, 2024 Approved By Max Zhang (Authorized Officer) Sep. 05, 2024 Report No.: AGC09691240702FH01 Page 4 of 37 TABLE OF CONTENTS 1. SUMMARY OF MAXIMUM SAR VALUE ......................................................................................................... 5 2. GENERAL INFORMATION ............................................................................................................................... 6 2.1. EUT DESCRIPTION......................................................................................................................................... 6 3. SAR MEASUREMENT SYSTEM ........................................................................................................................ 7 3.1. THE SATIMO SYSTEM USED FOR PERFORMING COMPLIANCE TESTS CONSISTS OF FOLLOWING ITEMS .................. 7 3.2. COMOSAR E-FIELD PROBE .......................................................................................................................... 8 3.3. ROBOT .......................................................................................................................................................... 8 3.4. VIDEO POSITIONING SYSTEM .......................................................................................................................... 9 3.5. DEVICE HOLDER ............................................................................................................................................ 9 3.6. SAM TWIN PHANTOM ................................................................................................................................... 10 4. SAR MEASUREMENT PROCEDURE .............................................................................................................. 11 4.1. SPECIFIC ABSORPTION RATE (SAR) .............................................................................................................. 11 4.2. SAR MEASUREMENT PROCEDURE ................................................................................................................ 12 4.3. RF EXPOSURE CONDITIONS ......................................................................................................................... 14 5. TISSUE SIMULATING LIQUID ......................................................................................................................... 15 5.1. THE COMPOSITION OF THE TISSUE SIMULATING LIQUID..................................................................................... 15 5.2. TISSUE DIELECTRIC PARAMETERS FOR HEAD AND BODY PHANTOMS ............................................................... 15 5.3. TISSUE CALIBRATION RESULT ....................................................................................................................... 16 6. SAR SYSTEM CHECK PROCEDURE ........................................................................................................... 17 6.1. SAR SYSTEM CHECK PROCEDURES ............................................................................................................. 17 6.2. SAR SYSTEM CHECK ................................................................................................................................... 18 7. EUT TEST POSITION ...................................................................................................................................... 19 7.1. DEFINE TWO IMAGINARY LINES ON THE HANDSET ........................................................................................... 19 7.2. CHEEK POSITION ......................................................................................................................................... 20 8. SAR EXPOSURE LIMITS ............................................................................................................................... 21 9. TEST FACILITY .............................................................................................................................................. 22 10. TEST EQUIPMENT LIST ..............................................…

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Antenna Report Project：WiTalk9-SMH/SRH Antenna Information： Antenna1：PIFA antenna, peak gain 0.1dBi Antenna2：Dipole antenna, peak gain 0.5dBi Manufacturer：Shenzhen Jiayz photo industrial ., Ltd  Antenna1: Gain Freq MHz Antenna Gain dBi 1880 0 1900 0.1 1930 0.1 Antenna return loss: Radiation pattern: Phi=0 Phi=90 Theta=90 Antenna Photo: Dimension:32mmX11.5mm*0.5mm  Antenna2: Gain Freq MHz Antenna Gain dBi 1880 0.5 1900 0.5 1930 0.5 Antenna return loss: Radiation pattern: Phi=0 Phi=90 Theta=90 Antenna Photo: Dimension: Length 125mm

Report No.: AGC09691240702FH01 Page 1 of 2 APPENDIX C. TEST SETUP PHOTOGRAPHS RIGHT- CHEEK TOUCH Report No.: AGC09691240702FH01 Page 2 of 2 DEPTH OF THE LIQUID IN THE PHANTOM—ZOOM IN Note：The position used in the measurement were according to IEEE 1528-2013 1900MHz head