2BFT2-KESAIYIS8RKESAIYI Open Year Headphones Wireless Bluetooth

Charge . charge in the case. The charging compartment uses the TYPE-C port to charge. . . TYPE-C . 1. The music play/pause: click on either side 2. Double click on the left ear add volume 3. Double click on the right ear reduce volume 4. Answer/hang up/reject : click on either side 5. Phone call voice remind 6. Pow er tips 7. Long press on t he left ear: last song 8. Long press the right ear :next song 9, Three strike any ear: Siri voice assistant Wireless headset BT version: JL5.3 Drive unit：φ13.5MM Impedance: 32ohm ±15% Grade of Waterproof：IPX 4 MIC：2718 Silicone microphone Earphone Battery：30mAH，IC with protection board； Earbuds battery：200mAH、with protection board； Earphone charge time：1H Earbuds charge time：1.5Hs (4 times for earphone) Distance：≥10M（barrier free） Playing time：5-6Hs Charge Port： Type-c Product Specification Operating instruction Compatible with iOS & Android devices MADE IN CHINA Safety tips R o charge the charging case, please use the included USB cable and plug it into the USB power supply for charging When the charging box is fully charged, the ea rcan be fully charged for 3 additional times o charge the earphones, please put them in the charging case and close the cover. Power indicatorTroubleshooting 1. Make sure the charging case is full of power 2. Put the earbuds to the case to charge for a while 3. 4. Connection failed,check whether the earbuds are paired or not ,turn of other 5. 6. Take the earphones out of the case till the red and led light flash alternately,this method is only applicable when the le nd right earbuds can’t pair to the device bluetooth device and turn it to the proper volume The earphones should be used correctly according to the requirements,in order to ensure smooth connection,pay attention to the influence of the use environment on the earphone.It is suggested that the distance between the cellphone and the earphones should be within 10M. phone FCC ID: 2BFT2-KESAIYIS8R FCC Statement 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. 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Attestation Statements (2024/5/16) 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 (GC: 2BFT2) (Stylus Limited ), the undersigned, hereby authorize Wilson Tech Service LLC to act as our designated U.S. agent for service of process, (Stylus Limited) 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. Wilson Tech Service LLC accepts the responsibility to act as designated U.S. agent for service of process. Applicant Information： Company Name: Stylus Limited Contact Name: LAW, Kwok Kee Address: 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong FRN: 0035276799 Telephone No: +852 62182702 Email: [email protected] Signature [LAW, Kwok Kee] U.S. Agent Information: Company Name: Wilson Tech Service LLC Address: 1312 17th Street Suite 692, Denver, CO, 80202, US FRN: 0033402033 Contact Name: Wilson Cheung Telephone No: +1-716-965-5112 Email: [email protected] Signature [Wilson Cheung]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BFT2-KESAIYIS8R KESAIYI S8 We, Applicant Company Name: Stylus Limited Address: 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Phone: +852-62182702 certify 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. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. We certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-12-04 Signature Date Name / Title: LAW Kwok Kee / Director Company: Stylus Limited Address: 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Phone: +852-62182702 Fax Number: N/A E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2BFT2-KESAIYIS8R KESAIYI S8 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Part List • the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-12-04 Signature Date Name / Title: LAW Kwok Kee / Director Company: Stylus Limited Address: 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Phone: +852-62182702 Fax Number: N/A E-Mail: [email protected]

FCC ID:2BFT2-KESAIYIS8R Fig. 1 Fig. 2 FCC ID:2BFT2-KESAIYIS8R Fig. 3 Fig. 4 FCC ID:2BFT2-KESAIYIS8R Fig. 5 Fig. 6 FCC ID:2BFT2-KESAIYIS8R Fig. 7

_____________________________________________________________________________________________________ LABEL AND LOCATION (Size: L4.00cm x 2.00cm) Label Location

FCC ID:2BFT2-KESAIYIS8R Fig. 1 Fig. 2 Antenna FCC ID:2BFT2-KESAIYIS8R Fig. 3 Fig. 4 FCC ID:2BFT2-KESAIYIS8R Fig. 5

Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong RF Exposure evaluation Report Reference No. .................... : FCC ID. ............................................ : GTS20240903013-1-02 2BFT2-KESAIYIS8R Compiled by ( position+printed name+signature) .. : File administrators Peter Xiao Supervised by ( position+printed name+signature) .. : Test Engineer Evan Ouyang Approved by ( position+printed name+signature) .. : Manager Jason Hu Date of issue ..................................... : Oct. 14, 2024 Representative Laboratory Name : Shenzhen Global Test Service Co.,Ltd. Address ............................................. : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ............................ : Stylus Limited Address ............................................. : 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Test specification .......................... : Standard ........................................... : 47CFR §1.1310 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ....................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .................... : KESAIYI Open Year Headphones Wireless Bluetooth Trade Mark ....................................... : KESAIYI Manufacturer ..................................... : Stylus Limited Model/Type reference ....................... : KESAIYI S8 Listed Models ................................... : N/A Exposure category ............................ : General population/uncontrolled environment EUT Type .......................................... : Portable Hardware Version ............................ : N/A Software Version .............................. : N/A Rating ............................................... : DC 3.7V by Battery Recharged by DC 5.0V Result ................................................ : PASS Report No.: GTS20240903013-1-02 Page 2 of 10 T E S T R E P O R T Test Report No. : GTS20240903013-1-02 Oct. 14, 2024 ______________________________________________________________________________________________ Date of issue Equipment under Test : KESAIYI Open Year Headphones Wireless Bluetooth Model /Type : KESAIYI S8 Listed model : N/A Applicant : Stylus Limited Address : 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Manufacturer : Stylus Limited Address : 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20240903013-1-02 Page 3 of 10 Contents 1. S U M M A R Y .................................................................................. 4 1.1. Product Description .................................................................................................................................... 4 2. T E S T E N V I R O N M E N T ................................................................... 5 2.1. Address of the test laboratory ................................................................................................................... 5 2.2. Test Facility .................................................................................................................................................. 5 2.3. Environmental conditions .......................................................................................................................... 5 2.4. Statement of the measurement uncertainty ............................................................................................. 5 3 . M E T H O D O F M E A S U R EM E N T ......................................................... 6 3.1. Applicable Standard .................................................................................................................................... 6 3.2. Evaluation Method and Limit...................................................................................................................... 6 4. C O N D U C T E D P O W E R R E S U L T S ...................................................... 7 5. M A N U F A C T U R I N G T O L E R ANCE ...................................................... 8 6 . E V A L U A T I O N R E S U L TS ................................................................ 9 6.1. Standalone Evaluation ................................................................................................................................ 9 7. C O N C L U S I O N ............................................................................ 10 Report No.: GTS20240903013-1-02 Page 4 of 10 1. S U M M A R Y 1.1. Product Description Product Name: KESAIYI Open Year Headphones Wireless Bluetooth Trade Mark: KESAIYI Model/Type reference: KESAIYI S8 List Model: N/A Model Declaration N/A Power supply: DC 3.7V by Battery Recharged by DC 5.0V Hardware Version N/A Software Version N/A Sample ID GTS20240903013-1-S0001-1# &GTS20240903013-1-S0001-2# Bluetooth Frequency Range 2402MHz ~ 2480MHz Channel Number 79 chan…

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2.4GHz3216ChipAntenna:RANT3216F245X02 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT3216F245X02 (A)(B)(C)(D)(E)(F) ElectricalSpecification ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 3.2x1.6mm( ± 0.2mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=0X WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGain2.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280 °C ) TerminationNi/Au(Leadless) Dimension(mm) L 3.20±0.20 W 1.60±0.20 T 0.45±0.20 咏成國際科技有限公司電話:13530576606 RAINInternationalTechnologyCo.,Ltd. 7/F,BuildingF,ZhichuangPark,Tong'an,Gushu,Shenzhen, China  2.4GHz3216ChipAntenna:RANT3216F245X02 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ReturnLoss Frequency(MHz) S11(dB) 2400-10.50 2450-30.62 2500-11.47 Radiation X Y Z 2.4GHz3216ChipAntenna:RANT3216F245X02 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 32167”5K/Reel 9.0±0.5 60±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType3216 1.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 1.50±0.10 4.0±0.1 2.4GHz3216ChipAntenna:RANT3216F245X02 _ 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°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+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 2.4GHz3216ChipAntenna:RANT3216F245X02 _ 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 12019/03/01NewDatasheet 22020/02/22Add2Dradiationcharacteristic

FCC ID:2BFT2-KESAIYIS8R 1 Case No. : GTS20240903013-1-01 Ambient Condition: 23 °C, 52 %RH According Standard: ■Part15C Test Date: 2024.9.24 Test Engineer: Evan ouyang Appendix A.1: 20dB Emission Bandwidth Test Result TestMode Antenna Freq(MHz) 20dB EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH1 Ant1 2402 0.852 2401.568 2402.420 --- --- 2441 0.858 2440.556 2441.414 --- --- 2480 0.846 2479.562 2480.408 --- --- 2DH1 Ant1 2402 1.290 2401.337 2402.627 --- --- 2441 1.227 2440.370 2441.597 --- --- 2480 1.245 2479.370 2480.615 --- --- FCC ID:2BFT2-KESAIYIS8R 2 Test Graphs DH1_Ant1_2402 DH1_Ant1_2441 DH1_Ant1_2480 FCC ID:2BFT2-KESAIYIS8R 3 2DH1_Ant1_2402 2DH1_Ant1_2441 FCC ID:2BFT2-KESAIYIS8R 4 2DH1_Ant1_2480 FCC ID:2BFT2-KESAIYIS8R 5 Appendix A.2: Occupied Channel Bandwidth Test Result TestMode Antenna Freq(MHz) OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH1 Ant1 2402 0.83357 2401.5807 2402.4142 --- --- 2441 0.83079 2440.5876 2441.4184 --- --- 2480 0.84089 2479.5788 2480.4197 --- --- 2DH1 Ant1 2402 1.1589 2401.4127 2402.5716 --- --- 2441 1.1616 2440.4128 2441.5744 --- --- 2480 1.1652 2479.4107 2480.5759 --- --- FCC ID:2BFT2-KESAIYIS8R 6 Test Graphs DH1_Ant1_2402 DH1_Ant1_2441 DH1_Ant1_2480 FCC ID:2BFT2-KESAIYIS8R 7 2DH1_Ant1_2402 2DH1_Ant1_2441 FCC ID:2BFT2-KESAIYIS8R 8 2DH1_Ant1_2480 FCC ID:2BFT2-KESAIYIS8R 9 Appendix A.3: Maximum conducted output power Test Result Peak Test Mode Antenna Freq(MHz) Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict DH1 Ant1 2402 -4.21 ≤20.97 PASS 2441 -3.42 ≤20.97 PASS 2480 -3.60 ≤20.97 PASS 2DH1 Ant1 2402 -3.31 ≤20.97 PASS 2441 -2.64 ≤20.97 PASS 2480 -2.82 ≤20.97 PASS FCC ID:2BFT2-KESAIYIS8R 10 Appendix A.4: Carrier frequency separation Test Result TestMode Antenna Freq(MHz) Result[MHz] Limit[MHz] Verdict DH1 Ant1 Hop_2402 0.816 ≥0.572 PASS Hop_2441 0.994 ≥0.572 PASS Hop_2480 0.998 ≥0.572 PASS 2DH1 Ant1 Hop_2402 1 ≥0.860 PASS Hop_2441 0.872 ≥0.860 PASS Hop_2480 0.996 ≥0.860 PASS FCC ID:2BFT2-KESAIYIS8R 11 Test Graphs DH1_Ant1_Hop_2402 DH1_Ant1_Hop_2441 DH1_Ant1_Hop_2480 FCC ID:2BFT2-KESAIYIS8R 12 2DH1_Ant1_Hop_2402 2DH1_Ant1_Hop_2441 FCC ID:2BFT2-KESAIYIS8R 13 2DH1_Ant1_Hop_2480 FCC ID:2BFT2-KESAIYIS8R 14 Appendix A.5: Time of occupancy Test Result TestMode Antenna Freq(MHz) BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH1 Ant1 Hop 0.375 330 0.124 ≤0.4 PASS DH3 Ant1 Hop 1.631 180 0.294 ≤0.4 PASS DH5 Ant1 Hop 2.883 120 0.346 ≤0.4 PASS 2DH1 Ant1 Hop 0.385 330 0.127 ≤0.4 PASS 2DH3 Ant1 Hop 1.631 140 0.228 ≤0.4 PASS 2DH5 Ant1 Hop 2.883 100 0.288 ≤0.4 PASS FCC ID:2BFT2-KESAIYIS8R 15 Test Graphs DH1_Ant1_Hop DH3_Ant1_Hop FCC ID:2BFT2-KESAIYIS8R 16 DH5_Ant1_Hop FCC ID:2BFT2-KESAIYIS8R 17 2DH1_Ant1_Hop 2DH3_Ant1_Hop FCC ID:2BFT2-KESAIYIS8R 18 2DH5_Ant1_Hop FCC ID:2BFT2-KESAIYIS8R 19 FCC ID:2BFT2-KESAIYIS8R 20 Appendix A.6: Number of hopping channels Test Result TestMode Antenna Freq(MHz) Result[Num] Limit[Num] Verdict DH1 Ant1 Hop 79 ≥15 PASS 2DH1 Ant1 Hop 79 ≥15 PASS FCC ID:2BFT2-KESAIYIS8R 21 Test Graphs DH1_Ant1_Hop 2DH1_Ant1_Hop FCC ID:2BFT2-KESAIYIS8R 22 Appendix A.7: Band edge measurements Test Result TestMode Antenna ChName Freq(MHz) RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH1 Ant1 Low 2402 -4.47 -49.63 ≤-24.47 PASS High 2480 -3.84 -48.7 ≤-23.84 PASS Low Hop_2402 -4.58 -48.18 ≤-24.58 PASS High Hop_2480 -4.23 -48.46 ≤-24.23 PASS 2DH1 Ant1 Low 2402 -4.61 -49.41 ≤-24.61 PASS High 2480 -3.85 -47.84 ≤-23.85 PASS Low Hop_2402 -4.62 -49 ≤-24.62 PASS High Hop_2480 -5.21 -48.35 ≤-25.21 PASS FCC ID:2BFT2-KESAIYIS8R 23 Test Graphs DH1_Ant1_Low_2402 DH1_Ant1_High_2480 DH1_Ant1_Low_Hop_2402 FCC ID:2BFT2-KESAIYIS8R 24 DH1_Ant1_High_Hop_2480 2DH1_Ant1_Low_2402 FCC ID:2BFT2-KESAIYIS8R 25 2DH1_Ant1_High_2480 2DH1_Ant1_Low_Hop_2402 2DH1_Ant1_High_Hop_2480 FCC ID:2BFT2-KESAIYIS8R 26 FCC ID:2BFT2-KESAIYIS8R 27 Appendix A.8: Conducted Spurious Emission Test Result TestMode Antenna Freq(MHz) FreqRange [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH1 Ant1 2402 Reference -4.81 -4.81 --- PASS 30~1000 -4.81 -60.98 ≤-24.81 PASS 1000~26500 -4.81 -46.93 ≤-24.81 PASS 2441 Reference -3.99 -3.99 --- PASS 30~1000 -3.99 -59.77 ≤-23.99 PASS 1000~26500 -3.99 -45.33 ≤-23.99 PASS 2480 Reference -4.17 -4.17 --- PASS 30~1000 -4.17 -60.57 ≤-24.17 PASS 1000~26500 -4.17 -47.53 ≤-24.17 PASS 2DH1 Ant1 2402 Reference -4.88 -4.88 --- PASS 30~1000 -4.88 -60.23 ≤-24.88 PASS 1000~26500 -4.88 -48.05 ≤-24.88 PASS 2441 Reference -3.98 -3.98 --- PASS 30~1000 -3.98 -58.57 ≤-23.98 PASS 1000~26500 -3.98 -46.97 ≤-23.98 PASS 2480 Reference -4.31 -4.31 --- PASS 30~1000 -4.31 -60.84 ≤-24.31 PASS 1000~26500 -4.31 -46.37 ≤-24.31 PASS FCC ID:2BFT2-KESAIYIS8R 28 Test Graphs DH1_Ant1_2402_0~Reference DH1_Ant1_2402_30~1000 DH1_Ant1_2402_1000~26500 FCC ID:2BFT2-KESAIYIS8R 29 DH1_Ant1_2441_0~Reference DH1_Ant1_2441_30~1000 FCC ID:2BFT2-KESAIYIS8R 30 DH1_Ant1_2441_1000~26500 DH1_Ant1_2480_0~Reference DH1_Ant1_2480_30~1000 FCC ID:2BFT2-KESAIYIS8R 31 DH1_Ant1_2480_1000~26500 2DH1_Ant1_2402_0~Reference FCC ID:2BFT2-KESAIYIS8R 32 2DH1_Ant1_2402_30~1000 2DH1_Ant1_2402_1000~26500 2DH1_Ant1_2441_0~Reference FCC ID:2BFT2-KESAIYIS8R 33 2DH1_Ant1_2441_30~1000 2DH1_Ant1_2441_1000~26500 FCC ID:2BFT2-KESAIYIS8R 34 2DH1_Ant1_2480_0~Reference 2DH1_Ant1_2480_30~1000 2DH1_Ant1_2480_1000~26500 FCC ID:2BFT2-KESAIYIS8R 35 FCC ID:2BFT2-KESAIYIS8R 36 Appendix A.9: Emissions in Restricted Bands Test Result TestMode Antenna ChName Freq(MHz ) Detector Freq [MHz] Result [dBm] Limit [dBm] Result [dBuV/m] Limit [dBuV/m] Verdict DH1 Ant1 Low 2402 AV 2310.000 -49.44 ≤-41.20 45.76 ≤54 PASS AV 2387.780 -48.87 ≤-41.20 46.33 ≤54 PASS AV 2390.000 -49.08 ≤-41.20 46.12 ≤54 PASS Peak 2310.000 -42.03 ≤-21.20 53.17 ≤74 PASS Peak 2312.180 -38.98 ≤-21.20 56.22 ≤74 PASS Peak 2390.000 -40.44 ≤-21.20 54.76 ≤74 PASS High 2480 AV 2483.500 -48.88 ≤-41.20 46.32 ≤54 PASS AV 2498.160 -48.65 ≤-41.20 46.55 ≤54 PASS AV 2500.000 -48.75 ≤-41.20 46.45 ≤54 PASS Peak 2483.500 -41.6 ≤-21.20 53.60 ≤74 PASS Peak 2490.560 -38.15 ≤-21.20 57.05 ≤74 PASS Pe…

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Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ..................... : FCC ID. ........................................... : GTS20240903013-1-01 2BFT2-KESAIYIS8R Compiled by ( position+printed name+signature).. : File administrators Peter Xiao Supervised by ( position+printed name+signature).. : Test Engineer Evan Ouyang Approved by ( position+printed name+signature).. : Manager Jason Hu Date of issue ..................................... : Oct. 14, 2024 Representative Laboratory Name . : Shenzhen Global Test Service Co.,Ltd. Address ............................................ : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ............................ : Stylus Limited Address ............................................ : 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Test specification ........................... : Standard ........................................... : FCC Part 15.247: Operation within the bands 902-928 MHz, 2400- 2483.5 MHz and 5725-5850 MHz TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ....................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : KESAIYI Open Year Headphones Wireless Bluetooth Trade Mark ....................................... : KESAIYI Manufacturer .................................... : Stylus Limited Model/Type reference ...................... : KESAIYI S8 List Models .................................... : N/A Modulation Type ............................... : GFSK, π/4-DQPSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version ........................... : N/A Software Version .............................. : N/A Rating ............................................... : DC 3.7V by Battery Recharged by DC 5.0V Result ............................................... : PASS Report No.: GTS20240903013-1-01 Page 2 of 35 T E S T R E P O R T Test Report No. : GTS20240903013-1-01 Oct. 14, 2024 ____________________________________________________________________________________________ Date of issue Equipment under Test : KESAIYI Open Year Headphones Wireless Bluetooth Model /Type : KESAIYI S8 Listed model : N/A Applicant : Stylus Limited Address : 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Manufacturer : Stylus Limited Address : 2404, 24/F, World-Wide House, 19 Des Voeux Road Central, Central, Hong Kong, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20240903013-1-01 Page 3 of 35 Contents 1. TEST STANDARDS ......................................................................................................................................... 4 2. SUMMARY ....................................................................................................................................................... 5 2.1. General Remarks ................................................................................................................................... 5 2.2. Product Description ................................................................................................................................ 5 2.3. Equipment Under Test ........................................................................................................................... 6 2.4. Short description of the Equipment under Test (EUT) ........................................................................... 6 2.5. EUT operation mode .............................................................................................................................. 6 2.6. Block Diagram of Test Setup ................................................................................................................. 7 2.7. Related Submittal(s) / Grant (s) ............................................................................................................. 7 2.8. EUT Exercise Software .......................................................................................................................... 7 2.9. Special Accessories ............................................................................................................................... 7 2.10. External I/O Cable ................................................................................................................................ 7 2.11. Modifications ........................................................................................................................................ 7 3. TEST ENVIRONMENT ..................................................................................................................................... 8 3.1. Address of the test laboratory ................................................................................................................ 8 3.2.…

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