2A84F-SU76ULTRA WIRELESS 2 - Wireless Over-Ear Headphones

1 / 11 ULTRAWIRELESS2 - WirelessOver-EarHeadphones UserManual Model:ULTRAWIRELESS2 Brand: Manufacturer:AVCTECHNOLOGY(INTERNATIONAL)LTD Address:6thFloor,EnterpriseSquareThree,39WangChiuRoad,Kowloon Bay,HongKong,China FCC ID：2A84F-SU76 Welcome 2/11 3/11 4/11 5/11 6/11 7/11 8/11 9/11 BluetoothVersion:V5.2 Profile:A2DP,AVRCPandHFP Range:10meters(33feet) Chargingtime(Fullcharge):Approx.3hour Playtime:Upto30hours;ANC:Upto20hours(Variesbyvolumeandcontent) Standbytime:Upto15daysDimensions68.7Wx191.2Hx81.2D(mm) Weight:209g 10/11 NOTE:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigital device,pursuanttopart15oftheFCCRules.Theselimitsare designedtoprovidereasonableprotectionagainstharmfulinterferenceina residentialinstallation.Thisequipmentgeneratesusesandcanradiateradio frequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycause harmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterference willnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferenceto radioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,the userisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowingmeasures: -Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentandreceiver. -Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. 11/11 -Consultthedealeroranexperiencedradio/TVtechnicianforhelp Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecould voidtheuser'sauthoritytooperatetheequipment. ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwo conditions: (1)thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause undesiredoperation.

Agent Authorization Company: AVC TECHNOLOGY (INTERNATIONAL) LTD Address: 6th Floor, Enterprise Square Three, 39 Wang Chiu Road, Kowloon Bay, Hong Kong, China Product Name: ULTRA WIRELESS 2 - Wireless Over-Ear Headphones Model Number(s): ULTRA WIRELESS 2, SU76 Product Description: ULTRA WIRELESS 2 - Wireless Over-Ear Headphones 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: Jan. 12, 2023 Name: Ken Chung Title: Senior Product Development Manager Company: AVC TECHNOLOGY (INTERNATIONAL) LTD

AVC TECHNOLOGY (INTERNATIONAL) LTD 6th Floor, Enterprise Square Three, 39 Wang Chiu Road, Kowloon Bay, Hong Kong, China Jan. 12, 2023 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID: 2A84F-SU76 Models: ULTRA WIRELESS 2, SU76 To Whom It May Concern: We, The AVC TECHNOLOGY (INTERNATIONAL) LTD hereby declare that all the series models are the same as the test model except for the model names and the color of appearance. Except for the different above, no other modification is performed. Sincerely, AVC TECHNOLOGY (INTERNATIONAL) LTD Signature: [Ken Chung, General Manager]

AVG TECHNOLOGY (INTERNATIONAL) LTD 6th Floor, Enterprise Square Three, 39 Wang Chiu Road, Kowloon Bay, Hong Kong, China Office of Enginee「ingTechnology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID:’2A84F>SU76 To Whom It May Concern, Date: Ja「1才2,2023 Pursuant to the provisio门sof 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 info「mationin 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. 因SchematicDiagram 因BlockDiagram 因OperationalDescription 因PartsList 口A阳nnaSpecification FCC一Confidential 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 ensu门ngthat business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Sho时Te「mConfidentiality of the following attachment(s); 口ξxternalPhotos 口TestSetup Photos 口InternalPhot口S 口UserManual 口For45 days, pursuant to Public Notice DA 04-1705. OR 口For才80days pursuant to KDB 726920 001. 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, e: l~ ff bM~（／ Name: ｜〈川h叫l Title: Senior Product Development Manager

Report No.: AGC07105221104AP02 Page 1 of 4 EXTERNAL PHOTOS All VIEW OF EUT TOP VIEW OF EUT Report No.: AGC07105221104AP02 Page 2 of 4 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC07105221104AP02 Page 3 of 4 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC07105221104AP02 Page 4 of 4 RIGHT VIEW OF EUT ****************************************End of Report****************************************

FCC ID Label Location 15mm*15mm FCC ID: 2A84F-SU76

Report No.: AGC07105221104AP03 Page 1 of 7 INTERNAL PHOTOS OPEN VIEW OF EUT (FIGURE 1) OPEN VIEW OF EUT (FIGURE 2) Report No.: AGC07105221104AP03 Page 2 of 7 OPEN VIEW OF EUT (FIGURE 3) VIEW OF BATTERY Report No.: AGC07105221104AP03 Page 3 of 7 ANTENNA CLOSE-UP PHOTO-1 INTERNAL VIEW OF EUT (FIGURE 1) Antenna Report No.: AGC07105221104AP03 Page 4 of 7 INTERNAL VIEW OF EUT (FIGURE 2) INTERNAL VIEW OF EUT (FIGURE 3) Report No.: AGC07105221104AP03 Page 5 of 7 INTERNAL VIEW OF EUT (FIGURE 4) INTERNAL VIEW OF EUT (FIGURE 5) Report No.: AGC07105221104AP03 Page 6 of 7 INTERNAL VIEW OF EUT (FIGURE 6) INTERNAL VIEW OF EUT (FIGURE 7) Report No.: AGC07105221104AP03 Page 7 of 7 INTERNAL VIEW OF EUT (FIGURE 7) INTERNAL VIEW OF EUT (FIGURE 8) ****************************************End of Report****************************************

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description ULTRA WIRELESS 2 - Wireless Over-Ear Headphones Model Name ULTRA WIRELESS 2 FCC ID 2A84F-SU76 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 BR/EDR P t =4.374dBm=2.74mW 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=(2.74mW /5mm) .[√2.480GHz)]=0.86<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. .5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

1 Gain&Efficiency 增益和效率 frequencygainmingainCOGainCPGainefficiencyefficiency 24003.35-21.032.551.99-1.562.81% 24103.47-20.232.292.09-1.7367.16% 24204.14-24.372.632.63-1.4461.84% 24304.4-31.052.622.79-1.4964.93% 24404.63-31.942.663.13-1.563.77% 24504.34-29.052.933.59-1.3468.49% Antennadescription model SU76 Antennatype PCBAntenna Brand SOUL Antennasize 5.5mm*11.4mm Manufacturer AVCTECHNOLOGY(INTERNATIONAL)LTD Antennaschemaic 2 24604.04-26.842.983.76-1.472.39% 24704.28-30.933.264.09-1.2471.24% 24804.53-23.913.554.43-165.48% 24904.35-20.053.314.15-1.3168.95% 25004.49-18.923.684.49-0.9866.78% 25104.44-18.813.734.47-0.9167.08% 25204.26-19.133.664.34-0.9161.02% 25304.32-18.913.794.45-0.6665.87% 25404.11-18.643.644.31-0.6765.64% 25503.93-19.513.534.2-0.6166.96% 25603.98-20.563.644.34-0.363.35% 25703.69-21.323.44.13-0.3462.41% 25803.25-22.372.963.79-0.5667.86% 25903.41-22.723.13.91-0.2464.61% 26003.97-22.712.763.29-0.6366.55% 3 4

Page 1 of 58 FCC Test Report Report No.: AGC07105221104FE03 FCC ID : 2A84F-SU76 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : ULTRA WIRELESS 2 - Wireless Over-Ear Headphones BRAND NAME : SOUL MODEL NAME : ULTRA WIRELESS 2, SU76 APPLICANT : AVC TECHNOLOGY (INTERNATIONAL) LTD DATE OF ISSUE : Dec. 05, 2022 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC07105221104FE03 Page 2 of 58 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Dec. 05, 2022 Valid Initial Release Report No.: AGC07105221104FE03 Page 3 of 58 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 ........................................................................................................................................ 18 8.1. MEASUREMENT PROCEDURE ............................................................................................................. 18 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 18 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 19 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 23 9.1. MEASUREMENT PROCEDURE ............................................................................................................. 23 Report No.: AGC07105221104FE03 Page 4 of 58 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 23 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 23 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 23 10. RADIATED EMISSION ................................................................................................................................. 37 10.1. MEASUREMENT PROCEDURE ........................................................................................................... 37 10.2. TEST SETUP ......................................................................................................................................... 39 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 40 10.4. TEST RESULT........................................................................................................................................ 40 11. NUMBER OF HOPPING FREQUENCY ............................…

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Report No.: AGC07105221104AP02 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC07105221104AP02 Page 2 of 2 RF CONDUCTED TEST SETUP ****************************************End of Report*************************************