2AXWI-M320ANC Gaming Headphone

FCCSTATEMENT: ThisdevicecomplieswithPart15oftheFCCRules.Operationissubject tothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation. Warning:Changesormodificationsnotexpresslyapprovedbytheparty responsibleforcompliancecouldvoidtheuser'sauthoritytooperatethe equipment. NOTE:Thisequipmenthasbeentestedandfoundtocomplywiththe limitsforaClassBdigitaldevice,pursuanttoPart15oftheFCCRules. Theselimitsaredesignedtoprovidereasonableprotectionagainst harmfulinterferenceinaresidentialinstallation.Thisequipment generatesusesandcanradiateradiofrequencyenergyand,ifnot installedandusedinaccordancewiththeinstructions,maycauseharmful interferencetoradiocommunications.However,thereisnoguarantee thatinterferencewillnotoccurinaparticularinstallation.Ifthisequipment doescauseharmfulinterferencetoradioortelevisionreception,which canbedeterminedbyturningtheequipmentoffandon,theuseris encouragedtotrytocorrecttheinterferencebyoneormoreofthe followingmeasures: Reorientorrelocatethereceivingantenna. Increasetheseparationbetweentheequipmentandreceiver. Connecttheequipmentintoanoutletonacircuitdifferentfromthatto whichthereceiverisconnected. Consultthedealeroranexperiencedradio/TVtechnicianforhelp. RFwarningstatement: ThedevicehasbeenevaluatedtomeetgeneralRFexposure requirement.Thedevicecanbeusedinportableexposurecondition withoutrestriction.

Date:16June2022 5-LinkTechnologyCo.,Ltd. To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 ToWhomItMayConcern: The5-LinkTechnologyCo.,Ltd.theundersigned,herebyauthorizesMr.WuXuewenfrom ShenzhenBALUNTechnologyCo.,Ltd.,toactonthebehalfofthe5-LinkTechnologyCo.,Ltd. solelyinmattersrelatingtotheapplicationforanFCCequipmentauthorizationforFCCID: 2AXWI-M320includingthesigningofdocumentsinconnectionwiththisApplication.Necessary actscarriedoutbyShenzhenBALUNTechnologyCo.,Ltd.inconnectionwiththeApplication shallhavethesameeffectasactsofthe5-LinkTechnologyCo.,Ltd. The5-LinkTechnologyCo.,Ltd.alsoherebycertifythatnopartytothisapplicationissubjectto adenialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuse Actof1988,21U.S.C.Section862. YoursSincerely, CherryLin

Date:16June2022 5-LinkTechnologyCo.,Ltd. To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 Re:5-LinkTechnologyCo.,Ltd. FCCID:2AXWI-M320 FCCCertificationConfidentialityRequest Gentlemen: Thisletteristocomplywith47CFR0.457and0.459pertainingtoconfidentiality material.5-LinkTechnologyCo.,Ltd.requeststhatthefollowingdocuments regardingthissubmissionforFCCID:2AXWI-M320bekeptconfidential: ExhibitTypeFileName BlockDiagramBlockDiagram.pdf SchematicsSchematics.pdf OperationalDescriptionOperationalDescription.pdf Andbelowexhibitkeptshort-termconfidential(180days): ExternalphotosExternalphotos.pdf Testsetupphotostestphoto.pdf InternalphotosInternalphotos.pdf UsermanualUsermanual.pdf Thosedocumentscontaindetailedsystemandequipmentdescriptionandrelated informationabouttheproductwhich5-LinkTechnologyCo.,Ltd.considerstobe confidentialproprietary,acustomdesignand,otherwise,notreleasabletothe generalpublic.Sincethisdesignisabasisformwhichfuturetechnological productswillevolve,5-LinkTechnologyCo.,Ltd.considersthisinformationwould beofbenefittoitscompetitors,andthatthedisclosureoftheinformationinthese documentswouldgivecompetitorsanunfairadvantageinthemarket. YoursSincerely, CherryLin

Report No.: BL-SZ2110415-AW 1 / 4 EUT EXTERNAL PHOTOS FRONT VIEW OF EUT REAR VIEW OF EUT Report No.: BL-SZ2110415-AW 2 / 4 LEFT VIEW OF EUT RIGHT VIEW OF EUT Report No.: BL-SZ2110415-AW 3 / 4 TOP VIEW OF EUT BOTTOM VIEW OF EUT Report No.: BL-SZ2110415-AW 4 / 4 Accessory-AUX Cable Accessory-TYPE-C Cable

Report No.: BL-SZ2110415-AI 1 / 5 EUT INTERNAL PHOTOS EUT UNCOVER VIEW 1 EUT UNCOVER VIEW 2 Report No.: BL-SZ2110415-AI 2 / 5 EUT UNCOVER VIEW 3 MAIN BOARD TOP VIEW Report No.: BL-SZ2110415-AI 3 / 5 MAIN BOARD REAR VIEW SUB BOARD TOP VIEW RF Chip PCB Antenna Report No.: BL-SZ2110415-AI 4 / 5 SUB BOARD REAR VIEW BATTERY (FRONT) Report No.: BL-SZ2110415-AI 5 / 5 BATTERY (REAR)

RF Exposure Evaluation for FCC ID: 2AXWI‐M320 Refer user manual this device is a ANC Gaming Headphone, and this device was designed used in portable devices that the minimum distance between human’s body is 5mm. Based on the 47CFR 2.1093, this device belongs to portable device. The definition of the category as following: Portable Derives: CFR Title 47 §2.1093(b) (b) For purposes of this section, a portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. FCC KDB 447498 D01 General RF Exposure Guidance v06 Limit Unless specifically required by the published RF exposure KDB procedures, standalone 1‐g head or body and 10‐g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source‐based time‐averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune‐up tolerance, and the minimum test separation distance required for the exposure conditions. The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander. 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 The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Test data Bluetooth Mode BR+EDR GFSK π/4-DQPSK 8-DPSK Peak Power (dBm) -0.60 1.47 2.03 Note: This report listed the worst case peak power value, please refer to RF test report for more details. Turn-up power Mode Power Range (dBm) Bluetooth (-1.0) - (2.5) RF Exposure Evaluation Result Mode Tune-up limit power (dBm) Distance (mm) Calculation Frequency (MHz) Calculation Results Threshold Value Verdict Bluetooth 2.5 5 2480 0.56 3.0 Compliance ‐‐END OF REPORT‐‐

Report No.: BL-SZ2110415-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 75 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe West Road, Nanshan District, ShenZhen, GuangDong Province, China TEST REPORT Applicant: 5-Link Technology Co., Ltd. Address: No. 7, Xingwang Road, Xiwang Industrial District, Tiantangwei, Fenggang Town, Dongguan City, Guangdong, China Equipment Type: ANC Gaming Headphone Model Name: Bloody M320 (refer section 2.4) Brand Name: Bloody, 2drumtek, Ziibi FCC ID: 2AXWI-M320 Test Standard: 47 CFR Part 15 Subpart C (refer section 3.1) Test Date Feb. 01, 2021 - Mar. 14, 2021 Date of Issue: Jun. 21, 2022 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Yu Yingyuan Checked by: Ye Hongji Approved by: Liao Jianming (Technical Director) _______________ _______________ _______________ Report No.: BL-SZ2110415-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 75 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe West Road, Nanshan District, ShenZhen, GuangDong Province, China Revision History Version Issue Date Revisions Rev. 01 Aug. 17, 2021 Initial Issue Rev. 02 Jun. 17, 2022 Updated Network and Wireless Connectivity in Section 2.5 Rev. 03 Jun. 21, 2022 Update the Test Plots in Chapter A.1 TABLE OF CONTENTS 1 GENERAL INFORMATION ......................................................................................................... 4 1.1 Identification of the Testing Laboratory .......................................................................... 4 1.2 Identification of the Responsible Testing Location ......................................................... 4 2 PRODUCT INFORMATION ......................................................................................................... 5 2.1 Applicant Information ...................................................................................................... 5 2.2 Manufacturer Information ............................................................................................... 5 2.3 Factory Information ........................................................................................................ 5 2.4 General Description for Equipment under Test (EUT) ................................................... 5 2.5 Technical Information ..................................................................................................... 6 2.6 Additional Instructions .................................................................................................... 8 3 SUMMARY OF TEST RESULTS ................................................................................................. 9 3.1 Test Standards ............................................................................................................... 9 3.2 Test Verdict .................................................................................................................... 9 4 GENERAL TEST CONFIGURATIONS ...................................................................................... 10 4.1 Test Environments ....................................................................................................... 10 4.2 Test Equipment List ...................................................................................................... 10 4.3 Test Software List ......................................................................................................... 12 4.4 Measurement Uncertainty ............................................................................................ 12 4.5 Description of Test Setup ............................................................................................. 13 4.6 Measurement Results Explanation Example ................................................................ 16 5 TEST ITEMS .............................................................................................................................. 17 5.1 Antenna Requirements ................................................................................................. 17 5.2 Frequency Hopping Systems ....................................................................................... 18 Report No.: BL-SZ2110415-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 75 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe West Road, Nanshan District, ShenZhen, GuangDong Province, China 5.3 Number of Hopping Frequencies ................................................................................. 20 5.4 Peak Output Power ...................................................................................................... 21 5.5 Occupied Bandwidth .................................................................................................... 22 5.6 Carrier Frequency Separation ...................................................................................... 23 5.7 Time of Occupancy (Dwell time) .................................................................................. 24 5.8 Conducted Spurious Emission & Authorized-band band-edge .................................... 26 5.9 Conducted Emission .................................................................................................... 27 5.10 Radiated Spurious Emission ........................................................................................ 28 5.11 Band Edge (Restricted-band band-edge) ..................................................................... 30 ANNEX A TEST RESULT ............................................................................................................. 31 A.1 Number of Hopping Frequency .................................................................................... 31 A.2 Peak Output Power ..…

Text truncated - open the document above for the full version.

Report No.: BL-SZ2110415-AR 1 / 4 TEST SETUP PHOTOS 1 Radiated Test Photo Below 30MHz 30MHz-1GHz Report No.: BL-SZ2110415-AR 2 / 4 Close-up Above 1GHz Report No.: BL-SZ2110415-AR 3 / 4 Close-up 2 Conducted Test Photo Conducted Test Report No.: BL-SZ2110415-AR 4 / 4 3 Conducted Emissions Test Photo 1 Test Photo 2