2AWCQ-AB02-2350-IK2Ikko ActiveBuds

1 FCC Warning 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 interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: 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. Specific Absorption Rate (SAR) information: This Ikko ActiveBuds meets the government's requirements for exposure to radio waves. The guidelines are based on standards that were developed by independent scientific organizations through periodic and thorough evaluation of scientific studies. The standards include a substantial safety margin designed to assure the safety of all persons regardless of age or health. FCC RF Exposure Information and Statement The SAR limit of USA (FCC) is 1.6 W/kg averaged over one gram of tissue. Device types: smart phone (2AWCQ-AB02-2350-IK1) has also been tested against this SAR limit. The highest SAR value reported under this standard during product certification for use on the body is 0.702W/kg.. This device was tested for typical body-worn operations with the back of the handset kept 5mm from the body. To maintain compliance with FCC RF exposure requirements, use accessories that maintain a 5mm separation distance between the user's body and the back of the handset. The use of belt clips, holsters and similar accessories should not contain metallic components in its assembly. The use of accessories that do not satisfy these requirements may not comply with FCC RF exposure requirements, and should be avoided. Body-worn Operation This device was tested for typical body-worn operations. To comply with RF exposure requirements, a minimum separation distance of 5mm must be maintained between the user’s body and the handset, including the antenna. Third-party belt-clips, holsters, and similar accessories used by this device should not contain any metallic components. Body-worn accessories that do not meet these requirements may not comply with RF exposure requirements and should be avoided. Use only the supplied or an approved antenna.

Attestation Statements 2023-12-14 TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID:2AWCQ-AB02-2350-IK2) Ikko audio technology (sz) co., LTD, the undersigned, hereby authorize HOPEK CORPORATION INC to act as our designated U.S. agent for service of process, Ikko audio technology (sz) 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 the equipment. HOPEK CORPORATION INC accepts the responsibility to act as designated U.S. agent for service of process. Applicant Information： Company name: Ikko audio technology (sz) co., LTD Contact Name: Edison Du FRN: 0029550720 Address: 805, 8th Floor, Heungkong Financial Center, Intersection of Linhai Avenue and Xinghai Avenue,Nanshan, Telephone No: 15622856338 Email: [email protected] Signature: Edison Du U.S. Agent Information: Company Name: HOPEK CORPORATION INC Address:4358 S BANNOCK ST ENGLEWOOD, CO 80110 United States FRN: 0034562900 Contact Name: Peter Davis Tel.: 561-235-6113 Email: [email protected] Signed by (printed name): Peter Davis Signature:

Ikko audio technology (sz) co., LTD Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date:12/26/2023 FCC ID: 2AWCQ-AB02-2350-IK2 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Ikko audio technology (sz) co., LTD 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. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing Ikko audio technology (sz) co., LTD 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. Applicant: Ikko audio technology (sz) co., LTD Address: 805, 8th Floor, Heungkong Financial Center, Intersection of Linhai Avenue and Xinghai Avenue,Nanshan, Contact Person: Edison Du Tel.: 15622856338 Email: [email protected] Sincerely, Signature:

2.4GHz2012ChipAntenna:RF201221 _ Application: WLAN,802.11b/g,Bluetooth,etc... Features SMD,highreliability,ultraImpact,Omni-directional... Partnumber RF201221 (1)(2)(3)(4) (1)ProductTypeChipAntenna (2)SizeCode2.0x1.2mm (3)Frequency2.45GHz (4)Internalcode1 ElectricalSpecification WorkingFrequencyRange2400~2484MHz PeakGain1.06dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature(°C)-40~85°C ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding P.S:Top&downandleft&right sidearesymmetrical,Nodirection TF Dimension(mm) L2.05+-0.15 W1.20+-0.15 T0.50+-0.10 A0.20+-0.10 TF 2.4GHz2012ChipAntenna:RF201221 _ eturnLoss 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm Unit:mm ElectricalCharacteristics ReturnLoss&Radiation R Trc2dBMag10dB/Ref0dBInvisible1 Trc3dBMag10dB/Ref0dBCalintOffs Frequency S11(dB) (MHz) 2400-10.78 2442-24.81 2484-10.24 S11 M1 M2 2.4000 2.4420 00GHz 00GHz -10.77 -24.81 6dB 2dB 41 31 21 11 0 M32.484000GHz-10.243dB M 1 M3 -9 -19 M2 -29 -39 Ch1Start2GHzPwr0dBmStop3GHz Radiation TF 2.4GHz2012ChipAntenna:RF201221 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEA ψ B ψ C ψ D W ψ M 20127”5K/Reel2.0±0.513.5±1.021±1.060±1.011.5±2.0178±2.0 TappingSpecification PackagingTypeABWEFGHTψDP PaperType32161.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 +0.10 1.50 -0 4.0±0.1 2.4GHz2012ChipAntenna:RF201221 _ ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10 °C /1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30 °C to+85 °C ;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30 °C to+85 °C ),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85 °C . 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30 °C . 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 2.4GHz2012ChipAntenna:RF201221 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12015/8/20Newissue 22017/4/20Updatedetaildimensiononantennalayout 32018/3/1Partnumberandcodingruleupdated

Ikko audio technology (sz) co., LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: December 26, 2023 Subject; Request for Confidentiality FCC ID: 2AWCQ-AB02-2350-IK2 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 Parts List Operational Description 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, Signature: Name: Edison Du Title: General MANAGER

Effective Date: April 2, 2020 QSF 7.6.4-8 – Agent Authorization Letter Template Page 1 of 1 Revision Date: Revision: 0 Ikko audio technology (sz) co., LTD Date：12/26/2023 Product Model Number: Ikko ActiveBuds FCC ID：2AWCQ-AB02-2350-IK2 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: • Testing • Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. Signature: By: Edison Du Contact Listed on FCC Wesbite Title: General MANAGER Email: [email protected] On behalf of: Ikko audio technology (sz) co., LTD

Page 1 of 3 Report No.: LGT23K031 Appendix - External Photographs of EUT Constructional Details FCC ID: 2AWCQ-AB02-2350-IK2 Model: Ikko ActiveBuds Photo 1 Photo 2 Page 2 of 3 Report No.: LGT23K031 Photo 3 Photo 4 Page 3 of 3 Report No.: LGT23K031 Photo 5 Photo 6

Label FCC ID: 2AWCQ-AB02-2350-IK2

Page 1 of 6 Report No.: LGT23K031 Appendix - Internal Photographs of EUT Constructional Details FCC ID: 2AWCQ-AB02-2350-IK2 Model: Ikko ActiveBuds Photo 1 Photo 2 ANT Page 2 of 6 Report No.: LGT23K031 Photo 3 Photo 4 Page 3 of 6 Report No.: LGT23K031 Photo 5 Photo 6 Page 4 of 6 Report No.: LGT23K031 Photo 7 Photo 8 Page 5 of 6 Report No.: LGT23K031 Photo 9 Photo 10 ANT Page 6 of 6 Report No.: LGT23K031 Photo 11 Photo 12

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Shenzhen LGT Test Service Co., Ltd. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China RF TEST REPORT Product Name: Ikko ActiveBuds Model Name: Ikko ActiveBuds FCC ID: 2AWCQ-AB02-2350-IK2 Issued For : Ikko audio technology (sz) co., LTD 805, 8th Floor, Heungkong Financial Center, Intersection of Linhai Avenue and Xinghai Avenue, Nanshan, Shenzhen, China Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Report Number: LGT23K031HA02 Sample Received Date: Nov. 10, 2023 Date of Test: Nov. 10, 2023 – Dec. 18, 2023 Date of Issue: Dec. 18, 2023 Report No.: LGT23K031HA02 Page 2 of 9 TEST REPORT CERTIFICATION Applicant: Ikko audio technology (sz) co., LTD Address: 805, 8th Floor, Heungkong Financial Center, Intersection of Linhai Avenue and Xinghai Avenue, Nanshan, Shenzhen, China Manufacture: Ikko audio technology (sz) co., LTD Address: 805, 8th Floor, Heungkong Financial Center, Intersection of Linhai Avenue and Xinghai Avenue, Nanshan, Shenzhen, China Product Name: Ikko ActiveBuds Trademark: Model Name: Ikko ActiveBuds Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC 47CFR §2.1093 KDB 447498 D01 General RF Exposure Guidance v06 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT23K031HA02 Page 3 of 9 TABLE OF CONTENTS 1 . GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST LABORATORY 5 2 . FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 8 Report No.: LGT23K031HA02 Page 4 of 9 Revision History Rev. Issue Date Revisions 00 Dec. 18, 2023 Initial Issue Report No.: LGT23K031HA02 Page 5 of 9 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name: Ikko ActiveBuds Trademark: Model Name: Ikko ActiveBuds Series Model: N/A Model Difference: N/A Frequency Bands: Bluetooth 2402-2480MHz Battery: Capacity: 40mAh Rated Voltage: 3.6V Hardware Version: V1.1 Software Version: HTS275_ABK_Active_sw_v1.2 1.2 TEST LABORATORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Accreditation Certificate A2LA Certificate No.: 6727.01 FCC Registration No.: 746540 CAB ID: CN0136 Report No.: LGT23K031HA02 Page 6 of 9 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in KDB 447498 D01 General RF Exposure Guidance v06 is followed. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. 2.2 LIMIT Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. Report No.: LGT23K031HA02 Page 7 of 9 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. Report No.: LGT23K031HA02 Page 8 of 9 2.3 TEST RESULT Turn up Result Mode Turn up Power BT-GFSK 2±1dBm BT-π/4-DQPSK 4.5±1dBm BT-8DPSK 5±1dBm BLE-GFSK 2.5±1dBm Report No.: LGT23K031HA02 Page 9 of 9 The MPE result of worst mode: Note: 1. The estimated SAR≤ 3.0 for 1-g SAR, Separation distance ≤ 5mm, complies with the exemption requirements. ※※※※※END OF THE REPORT※※※※※ RF Function Frequency (MHz) Max Turn up Power (dBm) Max Turn up Power (mW) ANT Gain (dBi) Estimated SAR Limit Ratio Result BT 2402 6 3.98 1.06 1.234 3 0.411 Pass BLE 2402 3.5 2.24 1.06 0.694 3 0.231 Pass

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Shenzhen LGT Test Service Co., Ltd. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China RF TEST REPORT Product Name: Ikko ActiveBuds Model Name: Ikko ActiveBuds FCC ID: 2AWCQ-AB02-2350-IK2 Issued For : Ikko audio technology (sz) co., LTD 805, 8th Floor, Heungkong Financial Center, Intersection of Linhai Avenue and Xinghai Avenue, Nanshan, Shenzhen, China Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Report Number: LGT23K031RF01 Sample Received Date: Nov. 10, 2023 Date of Test: Nov. 10, 2023 – Dec. 18, 2023 Date of Issue: Dec. 18, 2023 Report No.: LGT23K031RF01 Page 2 of 78 TEST REPORT CERTIFICATION Applicant: Ikko audio technology (sz) co., LTD Address: 805, 8th Floor, Heungkong Financial Center, Intersection of Linhai Avenue and Xinghai Avenue, Nanshan, Shenzhen, China Manufacturer: Ikko audio technology (sz) co., LTD Address: 805, 8th Floor, Heungkong Financial Center, Intersection of Linhai Avenue and Xinghai Avenue, Nanshan, Shenzhen, China Product Name: Ikko ActiveBuds Trademark: Model Name: Ikko ActiveBuds Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC Part 15.247, Subpart C ANSI C63.10-2013 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT23K031RF01 Page 3 of 78 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 10 2.4 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 12 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 12 2.6 EQUIPMENTS LIST 13 3. EMC EMISSION TEST 14 3.1 CONDUCTED EMISSION MEASUREMENT 14 3.2 RADIATED EMISSION MEASUREMENT 18 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 30 4.1 LIMIT 30 4.2 TEST PROCEDURE 30 4.3 TEST SETUP 31 4.4 EUT OPERATION CONDITIONS 31 4.5 TEST RESULTS 31 5. NUMBER OF HOPPING CHANNEL 32 5.1 LIMIT 32 5.2 TEST PROCEDURE 32 5.3 TEST SETUP 32 5.4 EUT OPERATION CONDITIONS 32 5.5 TEST RESULTS 32 6. AVERAGE TIME OF OCCUPANCY 33 6.1 LIMIT 33 6.2 TEST PROCEDURE 33 6.3 TEST SETUP 33 6.4 EUT OPERATION CONDITIONS 33 6.5 TEST RESULTS 33 7. HOPPING CHANNEL SEPARATION MEASUREMEN 34 7.1 LIMIT 34 7.2 TEST PROCEDURE 34 Report No.: LGT23K031RF01 Page 4 of 78 Table of Contents Page 7.3 TEST SETUP 34 7.4 EUT OPERATION CONDITIONS 34 7.5 TEST RESULTS 34 8. BANDWIDTH TEST 35 8.1 LIMIT 35 8.2 TEST PROCEDURE 35 8.3 TEST SETUP 35 8.4 EUT OPERATION CONDITIONS 35 8.5 TEST RESULTS 35 9. OUTPUT POWER TEST 36 9.1 LIMIT 36 9.2 TEST PROCEDURE 36 9.3 TEST SETUP 36 9.4 EUT OPERATION CONDITIONS 36 9.5 TEST RESULTS 36 10. ANTENNA REQUIREMENT 37 10.1 STANDARD REQUIREMENT 37 10.2 EUT ANTENNA 37 APPENDIX I - TEST RESULTS 38 DUTY CYCLE 38 MAXIMUM PEAK CONDUCTED OUTPUT POWER 42 -20DB BANDWIDTH 43 OCCUPIED CHANNEL BANDWIDTH 47 CARRIER FREQUENCIES SEPARATION 51 BAND EDGE 55 BAND EDGE(HOPPING) 60 CONDUCTED RF SPURIOUS EMISSION 65 NUMBER OF HOPPING CHANNEL 72 DWELL TIME 74 APPENDIX II - TEST SETUP PHOTOS 77 Report No.: LGT23K031RF01 Page 5 of 78 Revision History Rev. Issue Date Contents 00 Dec. 18, 2023 Initial Issue Report No.: LGT23K031RF01 Page 6 of 78 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247, Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247(a)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(1)(iii) Number of Hopping Frequency PASS -- 15.247(a)(1)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/Part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Report No.: LGT23K031RF01 Page 7 of 78 1.1 TEST FACTORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Accreditation Certificate A2LA Certificate No.: 6727.01 FCC Registration No.: 746540 CAB ID: CN0136 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.68dB 2 Unwanted Emissions, conducted ±2.988dB 3 All emissions, radiated 9K-30MHz ±2.84dB 4 All emissions, radiated 30M-1GHz ±4.39dB 5 All emissions, radiated 1G-6GHz ±5.10dB 6 All emissions, radiated>6G ±5.48dB 7 Conducted Emission (9KHz-150KHz) ±2.79dB 8 Conducted Emission (150KHz-30MHz) ±2.80dB 9 Occupied Channel Bandwidth ±3.2 % Note: The measurement uncertainty is not included in the test result. Report No.: LGT23K031RF01 Page 8 of 78 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name: Ikko ActiveBuds Trademark: Model Name: Ikko ActiveBuds Series Model: N/A Model Difference: N/A Channel List: Please refer to the Note 3. Bluetooth: Frequency:2402 – 2480 MHz Modulation: GFSK(1Mbps), π/4-DQPSK(2Mbps), 8DPSK(3Mbps) Antenna Type: Chip Antenna Gain: 1.06dBi Battery: Capacity: 40mAh Rated Voltage: 3.6V…

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Appendix Set-up for Radiated Spurious Set-up for Radiated Spurious Page 1 of 2 Report No.: ppendix - Test Setup photos purious Emission, Below 1GHz(Right earphone) purious Emission, Above 1GHz(Right earphone) Report No.: LGT23K031 (Right earphone) (Right earphone) Set Page 2 of 2 Report No.: Set-up for Conducted Emission Report No.: LGT23K031