2A4MJ-S800wireless headset

S880 S880 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.

CONFIDENTIALITYREQUEST forCertificationServiceinUSA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21046 Date:<2023-12-15> PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)and Section§552(b)(4)oftheFreedomofInformationAct,werequestsconfidentialityfor thefollowingproducts: FCCIDModelname 2A4MJ-S800S800 Fortheproductstatedabove,werequestthatthefollowinginformationbeheld confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term ConfidentialityDays ExternalPhotos InternalPhotos BlockDiagram Schematics TestSetupPhotos User’sManual PartsList TuneUp OperationalDescriptions Thelong-termconfidentialityexhibitscontainourtradesecretsandproprietary informationthatcouldbeofbenefittoourcompetitors. Theshort-termconfidentialityonthebasisofensuringthatbusinesssensitive informationremainsconfidentialuntiltheactualmarketingofournewdevice. Ifyouhaveanyquestions,pleasefeelfreetocontactmeattheaddressshownbelow.

FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Photo 5 Appearance of EUT Photo 6 Appearance of EUT

FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Appendix IID Label FCC ID: 2A4MJ-S800 FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Appendix II ID Label Location

FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Appendix IV EUT Internal Photographs Photo 7 Internal of EUT Photo 8 Internal of EUT FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Photo 9 Appearance of PCB Photo 10 Appearance of Antenna BT Antenna

Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202311-0095-9 Page: 1 of 3 TB-RF-074-1.0 1 A/F., Building.6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao’an, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 RF Exposure Evaluation FCC ID: 2A4MJ-S800 1. Client Information Applicant : Jiaxing Yuejia Trading Co.,Ltd Address : Room 1201-A3, Suyin Building, No. 999, Hongxing Road, Economic and Technological Development Zone, Jiaxing City, Zhejiang Province China Manufacturer : Jiaxing Yuejia Trading Co.,Ltd Address : Room 1201-A3, Suyin Building, No. 999, Hongxing Road, Economic and Technological Development Zone, Jiaxing City, Zhejiang Province China 2. General Description of EUT EUT Name : wireless headset Model(s) No. : S800, MY002U, MY002, MY001, MY001S, MY002S, MY002U, Pro999, C9, S880, MD528, MD538, Y50, X21S, X21BT, Q26, Pro-X6, X6-Pro, J28, B4, W11, W13, T30, TWS-48, TWS-B18, P3, QD-7, A68, SP-31, S29, H02, PW09, S518, TWS-19, BY-8, X7, YX06, SK19, A6s, TWST20, MS-B4, T40, M618, X57, X55, mini12, mini13 Model Difference : All PCB boards and circuit diagrams are the same, the only difference is that appearance. Product Description : Operation Frequency: Bluetooth V5.4: 2402MHz~2480MHz Number of Channel: Bluetooth 5.4: 79 channels Antenna Gain: 1.2dBi FPC Antenna Modulation Type: GFSK, Pi/4-DQPSK, 8-DPSK Bit Rate of Transmitter: 1/2/3Mbps Power Supply (Charging Box) : Input: DC 5V DC 3.7V by 180mAh Rechargeable Li-ion battery Power Supply (Earphone) : 3.7V by 25mAh Rechargeable Li-ion battery Software Version : v2 Hardware Version : v1 Remark: The antenna gain provided by the applicant, the adapter and verified for the RF conduction test and adapter provided by TOBY test lab. Note: More test information about the EUT please refer the RF Test Report. Report No.: TBR-C-202311-0351-2 Page: 2 of 3 TB-RF-074-1.0 SAR Test Exclusion Calculations 1. FCC: According to KDB 447498 D01 Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies v06. (1) Clause 4.3: General SAR test reduction and exclusion guidance Sub clause 4.31: Standalone SAR test exclusion considerations 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6GHz at test separation distance≤5 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤3.0 for 1-g SAR [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤7.5.0 for 10-g SAR Report No.: TBR-C-202311-0351-2 Page: 3 of 3 TB-RF-074-1.0 2. Calculation: Test separation: 5mm Bluetooth Mode (GFSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (dBm) Max power of tune up tolerance (mw) Calculation Value Threshold Value 2.402 2.622 3±1 4 2.512 0.779 3.0 2.441 2.548 3±1 4 2.512 0.785 3.0 2.480 1.971 2±1 3 1.995 0.628 3.0 Bluetooth Mode (Pi/4-DQPSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (dBm) Max power of tune up tolerance (mw) Calculation Value Threshold Value 2.402 3.226 3±1 4 2.512 0.779 3.0 2.441 3.044 3±1 4 2.512 0.785 3.0 2.480 2.44 2±1 3 1.995 0.628 3.0 Bluetooth Mode (8-DPSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (dBm) Max power of tune up tolerance (mw) Calculation Value Threshold Value 2.402 3.753 4±1 5 3.162 0.980 3.0 2.441 3.582 4±1 5 3.162 0.988 3.0 2.480 3.001 3±1 4 2.512 0.791 3.0 Conclusion: The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06. -----END OF REPORT-----

Productspecification Productnumber：S880 Productname：2.4GHZ/BT-ANT Productitemnumber： Pleaseacceptyoursignatureandsealandreturnonecopytoourcompanyforfiling.Thankyouforyourcooperation! ProducerAuditDate HuangjiajunWuYanlong 2023-12-05 Customerconfirmation: Customername: Approval： Date： Notes： Shenzhenxingtongwirelesstechnologyco., Telephone：+86-755-27850514Fax：+86-0755-27850514 Address:3/F,BuildingA1,QiangrongdongIndustrialZone, Jiuwei,Xixiang,BaoanDistrict,Shenzhen ShenzhenXingtongWieressTechnologyCo.,Ltd Date 2023-12-05 Version A0 Filenumber XT-YF-004 Productmodel S880-BT-ANT Product number S880-BT-2.4GHZ auxiliarywordforordinalnumbers1page/common7page 1.ProductConstrution 1.Antennamaterial：Phosphorusbronze+gold-plated 2.Adhesivetype：3M-9471 3.Antennasize：13.37*10.69*0.1mm(tolerance±0.05) 4.Appearancetreatment:surfaceoxidationresistancetreatment 2.parameters Scopeofuse:customer-suppliedmachines Antennafrequency:2.4-2.48Ghz Antennafreespacegain:2.4≥0.4dbi Installationmode:Toppinconnectedtoantenna Packingmethod:usePEbag+packingbox 3.S11valueofantenna  3.1： Antennastandingwaveratio/Antennareturnlossvalue  3.2：Antennaparameters Frequencypoint2400mhz2450mhz2480mhz SWR(dbm）2.01.11.5 LOG（dbm）-9.26-23.4-13.1 ShenzhenXingtongWieressTechnologyCo.,Ltd Date 2023-12-05 Version A0 Filenumber XT-YF-004 Productmodel S880-BT-ANT Product number S880-BT-2.4GHZ auxiliarywordforordinalnumbers2page/common7page 4.Antennaperformance(OTA) 4.1：Antennamatchingrecommendations Vectorimpedancemodulationcanbeperformed。 4.2：AntennaOTA/efficiency/gain(testinstruments:networkanalyzer,oscilloscope, customerengineeringprototype,variousstandardcards,etc.) ShenzhenXingtongWieressTechnologyCo.,Ltd Date 2023-12-05 Version A0 Filenumber XT-YF-004 Productmodel S880-BT-ANT Product number S880-BT-2.4GHZ auxiliarywordforordinalnumbers3page/common7page  4.3： AntennaOTA-2.4G-3D 2.4GHz ：Maximumgain 0.47dBi ShenzhenXingtongWieressTechnologyCo.,Ltd Date 2023-12-05 Version A0 Filenumber XT-YF-004 Productmodel S880-BT-ANT Product number S880-BT-2.4GHZ auxiliarywordforordinalnumbers4page/common7page 2.45GHz ：Maximumgain 0.6dBi ShenzhenXingtongWieressTechnologyCo.,Ltd Date 2023-12-05 Version A0 Filenumber XT-YF-004 Productmodel S880-BT-ANT Product number S880-BT-2.4GHZ auxiliarywordforordinalnumbers5page/common7page 2.48GHz ：Maximumgain 1.11dBi ShenzhenXingtongWieressTechnologyCo.,Ltd Date 2023-12-05 Version A0 Filenumber XT-YF-004 Productmodel S880-BT-ANT Product number S880-BT-2.4GHZ auxiliarywordforordinalnumbers6page/common7page 5.Figure： 5.1：Finishedantennadrawing ShenzhenXingtongWieressTechnologyCo.,Ltd Date 2023-12-05 Version A0 Filenumber XT-YF-004 Productmodel S880-BT-ANT Product number S880-BT-2.4GHZ auxiliarywordforordinalnumbers7page/common7page 6Mattersneedingattention Afteropening,pleasecarefullycheckwhetherthegoodsarecomplete.Ifthereisanydamage, pleasecontactusimmediately.

Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 1 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 RF Test Data for Bluetooth(BDR+EDR) (Conducted Measurements) General Description of EUT Product Name: wireless headset Test Model: S800 Sample ID: HC-C-202311-0095-02-02 Environmental Conditions Temperature: 25°C Relative Humidity: 55% Test Voltage: DC 3.7V Test Engineer: Zhou zhen Note: For a more detailed features description, please refer to the report TBR-C-202311-0095-7 The report only show the worst case data. Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 2 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Contents 1.Duty Cycle ............................................................................................................................................................................................ 3 2.Maximum Conducted Output Power .................................................................................................................................................. 9 3.-20dB Bandwidth ............................................................................................................................................................................... 15 4.Occupied Channel Bandwidth .......................................................................................................................................................... 21 5.Band Edge ......................................................................................................................................................................................... 27 6.Band Edge(Hopping) ......................................................................................................................................................................... 34 7.Conducted RF Spurious Emission ................................................................................................................................................... 41 8.Restrict Band ..................................................................................................................................................................................... 51 9.Carrier Frequencies Separation ....................................................................................................................................................... 58 10.Number of Hopping Channel .......................................................................................................................................................... 61 11.Dwell Time ........................................................................................................................................................................................ 64 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 3 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 1.Duty Cycle Condition Mode Frequency (MHz) Antenna Duty Cycle (%) Correction Factor (dB) 1/T (kHz) NVNT 1-DH1 2402 Ant1 32.8 4.84 2.44 NVNT 1-DH1 2441 Ant1 32.8 4.84 2.44 NVNT 1-DH1 2480 Ant1 32.8 4.84 2.44 NVNT 2-DH1 2402 Ant1 33.6 4.74 2.38 NVNT 2-DH1 2441 Ant1 33.6 4.74 2.38 NVNT 2-DH1 2480 Ant1 33.6 4.74 2.38 NVNT 3-DH1 2402 Ant1 33.6 4.74 2.38 NVNT 3-DH1 2441 Ant1 33.6 4.74 2.38 NVNT 3-DH1 2480 Ant1 33.6 4.74 2.38 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 4 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Test Graphs Duty Cycle NVNT 1-DH1 2402MHz Ant1 Duty Cycle NVNT 1-DH1 2441MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 5 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Duty Cycle NVNT 1-DH1 2480MHz Ant1 Duty Cycle NVNT 2-DH1 2402MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 6 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Duty Cycle NVNT 2-DH1 2441MHz Ant1 Duty Cycle NVNT 2-DH1 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 7 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Duty Cycle NVNT 3-DH1 2402MHz Ant1 Duty Cycle NVNT 3-DH1 2441MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 8 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Duty Cycle NVNT 3-DH1 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 9 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 2.Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Limit (dBm) Verdict NVNT 1-DH1 2402 Ant1 2.622 21 Pass NVNT 1-DH1 2441 Ant1 2.548 21 Pass NVNT 1-DH1 2480 Ant1 1.971 21 Pass NVNT 2-DH1 2402 Ant1 3.226 21 Pass NVNT 2-DH1 2441 Ant1 3.044 21 Pass NVNT 2-DH1 2480 Ant1 2.44 21 Pass NVNT 3-DH1 2402 Ant1 3.753 21 Pass NVNT 3-DH1 2441 Ant1 3.582 21 Pass NVNT 3-DH1 2480 Ant1 3.001 21 Pass Shenzhen Toby Technology…

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Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 35 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Test Graphs Band Edge(Hopping) NVNT 1-DH1 2402MHz Ant1 Hopping Ref Band Edge(Hopping) NVNT 1-DH1 2402MHz Ant1 Hopping Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 36 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Band Edge(Hopping) NVNT 1-DH1 2480MHz Ant1 Hopping Ref Band Edge(Hopping) NVNT 1-DH1 2480MHz Ant1 Hopping Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 37 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Band Edge(Hopping) NVNT 2-DH1 2402MHz Ant1 Hopping Ref Band Edge(Hopping) NVNT 2-DH1 2402MHz Ant1 Hopping Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 38 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Band Edge(Hopping) NVNT 2-DH1 2480MHz Ant1 Hopping Ref Band Edge(Hopping) NVNT 2-DH1 2480MHz Ant1 Hopping Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 39 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Band Edge(Hopping) NVNT 3-DH1 2402MHz Ant1 Hopping Ref Band Edge(Hopping) NVNT 3-DH1 2402MHz Ant1 Hopping Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 40 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Band Edge(Hopping) NVNT 3-DH1 2480MHz Ant1 Hopping Ref Band Edge(Hopping) NVNT 3-DH1 2480MHz Ant1 Hopping Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 41 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 7.Conducted RF Spurious Emission Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT 1-DH1 2402 Ant1 -26.61 -20 Pass NVNT 1-DH1 2441 Ant1 -28.1 -20 Pass NVNT 1-DH1 2480 Ant1 -23.73 -20 Pass NVNT 2-DH1 2402 Ant1 -25.24 -20 Pass NVNT 2-DH1 2441 Ant1 -29.85 -20 Pass NVNT 2-DH1 2480 Ant1 -32.3 -20 Pass NVNT 3-DH1 2402 Ant1 -26.61 -20 Pass NVNT 3-DH1 2441 Ant1 -23.89 -20 Pass NVNT 3-DH1 2480 Ant1 -28.7 -20 Pass Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 42 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Test Graphs Tx. Spurious NVNT 1-DH1 2402MHz Ant1 Ref Tx. Spurious NVNT 1-DH1 2402MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 43 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Tx. Spurious NVNT 1-DH1 2441MHz Ant1 Ref Tx. Spurious NVNT 1-DH1 2441MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 44 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Tx. Spurious NVNT 1-DH1 2480MHz Ant1 Ref Tx. Spurious NVNT 1-DH1 2480MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 45 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Tx. Spurious NVNT 2-DH1 2402MHz Ant1 Ref Tx. Spurious NVNT 2-DH1 2402MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 46 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Tx. Spurious NVNT 2-DH1 2441MHz Ant1 Ref Tx. Spurious NVNT 2-DH1 2441MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 47 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Tx. Spurious NVNT 2-DH1 2480MHz Ant1 Ref Tx. Spurious NVNT 2-DH1 2480MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 48 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Tx. Spurious NVNT 3-DH1 2402MHz Ant1 Ref Tx. Spurious NVNT 3-DH1 2402MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 49 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Tx. Spurious NVNT 3-DH1 2441MHz Ant1 Ref Tx. Spurious NVNT 3-DH1 2441MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202311-0095-7 Page: 50 of 69 FCC ID:2A4MJ-S800 TB-RF-074-1.0 Tx. Spurious NVNT 3-DH1 2480MHz Ant1 Ref Tx. Spurious NVNT 3-DH1 2480MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.…

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Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202311-0095-7 Page: 1 of 59 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 Radio Test Report FCC ID:2A4MJ-S800 Original Grant Report No. : TBR-C-202311-0095-7 Applicant : Jiaxing Yuejia Trading Co.,Ltd Equipment Under Test (EUT) EUT Name : wireless headset Model No. : S800 Series Model No. : Please refer to page 6 Brand Name : ----- Sample ID : HC-C-202311-0095-02-01# & HC-C-202311-0095-02-02 Receipt Date : 2023-12-07 Test Date : 2023-12-07 to 2023-12-19 Issue Date : 2023-12-19 Standards : FCC Part 15 Subpart C 15.247 Test Method : ANSI C63.10: 2013 KDB 558074 D01 15.247 Meas Guidance v05r02 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above. Witness Engineer : Camille Li Engineer Supervisor : Ivan Su Engineer Manager : Ray Lai This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TBR-C-202311-0095-7 Page: 2 of 59 TB-RF-074-1.0 Contents CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT.............................................................................. 6 1.1 Client Information ................................................................................................................. 6 1.2 General Description of EUT (Equipment Under Test) ................................................... 6 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 9 1.4 Description of Support Units .............................................................................................. 9 1.6 Description of Test Software Setting .............................................................................. 11 1.7 Measurement Uncertainty ................................................................................................ 11 1.8 Test Facility ......................................................................................................................... 12 2. TEST SUMMARY ..................................................................................................................... 13 3. TEST SOFTWARE ................................................................................................................... 13 4. TEST EQUIPMENT .................................................................................................................. 14 5. CONDUCTED EMISSION ....................................................................................................... 16 5.1 Test Standard and Limit .................................................................................................... 16 5.2 Test Setup ........................................................................................................................... 16 5.3 Test Procedure ................................................................................................................... 16 5.4 Deviation From Test Standard ......................................................................................... 17 5.5 EUT Operating Mode ........................................................................................................ 17 5.6 Test Data ............................................................................................................................. 17 6. RADIATED AND CONDUCTED UNWANTED EMISSIONS ............................................ 18 6.1 Test Standard and Limit .................................................................................................... 18 6.2 Test Setup ........................................................................................................................... 19 6.3 Test Procedure ................................................................................................................... 20 6.4 Deviation From Test Standard ......................................................................................... 22 6.5 EUT Operating Mode ........................................................................................................ 22 6.6 Test Data ............................................................................................................................. 22 7. EMISSIONS IN RESTRICTED BANDS ............................................................................... 23 7.1 Test Standard and Limit .................................................................................................... 23 7.2 Test Setup ........................................................................................................................... 23 7.3 Test Procedure ................................................................................................................... 24 7.4 Deviation From Test Standard ......................................................................................... 26 7.5 EUT Operating Mode ........................................................................................................ 26 Report No.: TBR-C-202311-0095-7 Page: 3 of 59 TB-RF-074-1.0 7.6 Test Data ............................................................................................................................. 26 8. 99% OCCUPIED AND 20DB BANDWIDTH ........................................................................ 27 8.1 Test Standard and Limit .................................................................................................... 27 8.2 Test Setup .............................…

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FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Appendix V EUT Test Photographs Photo of Setup for Radiated Emission (Below 1 GHz) Photo of Setup for Radiated Emission (Above 1 GHz) FCC ID: 2A4MJ-S800 TB-RF-074-1.0 Photo of Setup for Conducted Emission -----END OF REPORT-----