OSDAVENTHO200Wireless Over-Ear Headphones

Safety | Compliance | Warranty AVENTHO 200 WIRELESS OVER-EAR HEADPHONES PLROHUSKKOCSJA MAN_AVENTHO200-CB_EN-DE-FR-ES-IT-SV-CS-HU-PL-RO-SK-JA-KO-ZH_.indd 1MAN_AVENTHO200-CB_EN-DE-FR-ES-IT-SV-CS-HU-PL-RO-SK-JA-KO-ZH_.indd 103.09.2025 08:34:3903.09.2025 08:34:39 beyerdynamic GmbH & Co. KG Theresienstraße 8 74072 Heilbronn Germany www.beyerdynamic.com MAN_AVENTHO200-CB_EN-DE-FR-ES-IT-SV-CS-HU-PL-RO-SK-JA-KO-ZH_.indd 2MAN_AVENTHO200-CB_EN-DE-FR-ES-IT-SV-CS-HU-PL-RO-SK-JA-KO-ZH_.indd 203.09.2025 08:34:3903.09.2025 08:34:39 3 AVENTHO 200 EN SAFETY INSTRUCTIONS � Please read these safety instructions carefully and completely before using the AVENTHO 200. � Please observe all instructions given, especially those concerning the safe use of the AVENTHO 200. � Please also observe the detailed operating instructions for the AVENTHO 200. You can download the instructions from the beyerdynamic website at www.beyerdynamic.com/p/aventho-200 � Do not use the AVENTHO 200 if it is defective. Intended use � Only use the AVENTHO 200 as described in this product manual. The company beyerdynamic GmbH & Co. KG accepts no liability for damage to the AVENTHO 200 or injury to persons caused by careless, improper or incorrect use of the AVENTHO 200, or by use for purposes not specified by the manufacturer. � beyerdynamic is not liable for damage to USB devices that do not comply with the USB specifications. � beyerdynamic is not liable for damage resulting from connection interruptions due to batteries being empty or too old, or due to exceeding the Bluetooth® transmission range. � Please also observe the relevant country- specific regulations before using the AVENTHO 200. Adjusting the volume High volumes and long listening can permanently damage your hearing. � Before putting on the AVENTHO 200, set the volume to minimum. Only increase the volume afterwards. � When listening and speaking normally with the AVENTHO 200, your voice should still be perceptible. � In case of tinnitus, decrease the volume. If necessary, consult a doctor. � Excessively high volumes and long listening times may cause hearing damage. � As a rule of thumb, the higher the volume, the shorter the listening time. Damage from liquids Liquid penetration can damage the AVENTHO 200. � Make sure that no liquids penetrate the AVENTHO 200 (e.g. when cleaning). � Do not use solvent-based or aggressive cleaning agents. Risk of swallowing � Keep small parts, such as packaging and accessories, away from children and pets. They constitute a choking hazard if swallowed! Using the batteries Danger from heat, water and mechanical stress Excessive heat, water and mechanical stress may cause explosion, heat, fire, smoke or fumes. Injuries and irreversible damage to the battery may result. � Do not expose the battery to excessive heat, fire or extremely low air pressure. There is a risk of explosion, fire, smoke or gas. � Do not subject the battery to mechanical stress (e.g. crushing). � Do not open the housing or remove the battery. � Only use a USB 2.0/3.0 standard-compliant 5 V power supply to charge the battery via the integrated USB Type-C port. Storing the battery � If the battery is not going to be used for an extended period, set the charge level to approximately 50 % of the maximum capacity and store it at temperatures up to max. 30 °C. Charging � Disconnect the USB connecting cable from the charging unit once the device is fully charged. Environmental conditions � Do not expose the product to rain, snow, liquids or moisture. MAN_AVENTHO200-CB_EN-DE-FR-ES-IT-SV-CS-HU-PL-RO-SK-JA-KO-ZH_.indd 3MAN_AVENTHO200-CB_EN-DE-FR-ES-IT-SV-CS-HU-PL-RO-SK-JA-KO-ZH_.indd 303.09.2025 08:34:3903.09.2025 08:34:39 4 AVENTHO 200 DISPOSAL � This symbol on the product, in the operating instructions or on the packaging means that electrical and electronic devices must be disposed of separately from household waste at the end of their life cycle. � Always dispose of used equipment in accordance with applicable regulations. For sale within the EU only: � For the return of old equipment, batteries and rechargeable batteries, there are free collection points or a free return to beyerdynamic, as well as other acceptance points for reuse. The addresses are available at the local city or municipal administration. � Dealers for electronic equipment are generally obliged to take back waste electrical/electronic equipment free of charge. Disposal of batteries � Dispose of batteries separately after use from the product in accordance with applicable regulations. They must not be disposed of in household waste. The return is free of charge for consumers/end users. � Before disposal, discharge the battery. CAUTION: For this product a non-destructive removal of the battery by the end user is not possible. Please contact beyerdynamic or consult independent professional staff. The properly removed battery must be disposed of in a container intended for this purpose with tape put on the terminals; do not dispose of it with household waste or municipal waste. � You will find instructions for changing the battery at the end of this compliance booklet. CONFORMITY AND GUARANTEE EU Declaration of conformity beyerdynamic hereby declares that this radio transmission device complies with the EU Directive 2014/53/EU and the EU Directive 2011/65/EU. � The full text of the EU declaration of conformity can be found on the Internet at: www.beyerdynamic.com/cod Warranty conditions beyerdynamic provides a limited guarantee for the original beyerdynamic product you have purchased. � You can find detailed information about beyerdynamic’s warranty conditions on the Internet at www.beyerdynamic.com/service/warranty PRODUCT REGISTRATION You can register your AVENTHO 200 online at www.beyerdynamic.com/p/aventho-200 by entering the serial number. TECHNICAL SPECIFICATIONS Bluetooth® frequency range 2,402 – 2,480 MHz Transmitting power< 10 dBm Operating temperature range -10 to +50 °C Charging temperature range 0 t…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A02 Rev. A/1 Aug 16,2024 Report No.: SZCR250800343404 Page: 1 of 6 Appendix D Photographs 1. SAR measurement System 2. Photographs of Tissue Simulate Liquid 3. Photographs of EUT test position 4. EUT Antenna Locations 5. EUT Constructional Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A02 Rev. A/1 Aug 16,2024 Report No.: SZCR250800343404 Page: 2 of 6 1. SAR measurement System SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A02 Rev. A/1 Aug 16,2024 Report No.: SZCR250800343404 Page: 3 of 6 2. Photographs of Tissue Simulate Liquid Photo 1: Tissue Simulant Liquid for HBBL600-10000MHz NA NA SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A02 Rev. A/1 Aug 16,2024 Report No.: SZCR250800343404 Page: 4 of 6 3. Photographs of EUT test position Photo 2: Rear 0mm Photo 3: Touch 0mm SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A02 Rev. A/1 Aug 16,2024 Report No.: SZCR250800343404 Page: 5 of 6 4. EUT Antenna Locations SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A02 Rev. A/1 Aug 16,2024 Report No.: SZCR250800343404 Page: 6 of 6 5. EUT Constructional Details Details please Refer to Appendix – Photographs for SZCR2508003434AT. - End of the Appendix –

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A04 Rev.A/0 Page: 1 of 3 Setup Photos for SZCR2508003434AT FCC ID: OSDAVENTHO200 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A04 Rev.A/0 Page: 2 of 3 Test Setup Photo Conducted Emissions at AC Power Line (150kHz-30MHz) Radiated Spurious Emissions Below 1GHz SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A04 Rev.A/0 Page: 3 of 3 Radiated Spurious Emissions Above 1GHz - End of the Appendix -

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR250800343403 Page: 1 of 77 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2508003434AT Applicant: Beyerdynamic Address of Applicant: 56 Central Avenue Farmingdale New York 11735 United States Manufacturer: beyerdynamic GmbH & Co.KG Address of Manufacturer: Theresienstrasse 8, 74072 Heilbronn, Germany Factory: Honsenn Technology Co., Ltd Address of Factory: No.70, Erheng Road, Wentang Zhuanyao Industrial Zone, Dongcheng District, Dongguan City, Guangdong Province Equipment Under Test (EUT): EUT Name: Wireless Over-Ear Headphones Model No.: AVENTHO 200 Trade Mark: beyerdynamic FCC ID: OSDAVENTHO200 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2025-08-04 Date of Test: 2025-08-06 to 2025-08-09 Date of Issue: 2025-08-18 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR250800343403 Page: 2 of 77 Revision Record Version Chapter Date Modifier Remark 01 2025-08-18 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR250800343403 Page: 3 of 77 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Emissions at AC Power Line (150kHz-30MHz) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2020) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2020) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2020) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2020) Section 6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Conducted Peak Output Power ANSI C63.10 (2020) Section 11.9.1 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2020) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectrum Density ANSI C63.10 (2020) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2020) Section 6.10.4 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2020) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR250800343403 Page: 4 of 77 3 Contents Page 1 Cover Page ......................................................................................................................................... 1 2 Test Summary ..................................................................................................................................... 3 3 Contents ............................................................................................................................................. 4 4 General Information............................................................................................................................ 6 4.1 Details of E.U.T. ........................................................................................................................... 6 4.2 Description of Support Units ......................................................................................................... 6 4.3 Measurement Uncertainty ............................................................................................................ 7 4.4 Test Location ............................................................................................................................... 8 4.5 Test Facility .................................................................................................................................. 8 4.6 Deviation from Standards ............................................................................................................. 8 4.7 Abnormalities from Standard Conditions ....................................................................................... 8 5 Equipment List ................................................................................................................................... 9 6 Radio Spectrum Technical Requirement ..........................................................................................11 6.1 Antenna Requirement .................................................................................................................11 6.1.1 Test Requirement: ..................................................................................................................11 6.1.2 Conclusion ..............................................................................................................................11 7 Radio Spectrum Matter Test Results ................................................................................................12 7.1 Conducted Emissions at AC Power Line (150kHz-30MHz) ..........................................................12 7.1.1 E.U.T. Operation .....................................................................................................................12 7.1.2 Test Mode Description ............................................................................................................12 7.1.3 Test Setup Diagram ................................................................................................................13 7.1.4 Measurement Procedure and Data .........................................................................................13 7.2 Radiated Emissions which fall in the restricted ba…

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I-TOPDESIGNTECHNOLOGYCO.,LTD APPLICATIONFORAPPROVAL CustomerName HonsennTechnologyCo..Ltd ModelName. BN970_Bluetooth_Antenna PartNO. FPCAntenna CustomerP/N. 58AA.0004T.10300 EnvironmentalRequirement RoHS Description BT-2400MHZ-2500MHZ/φ0.64MM/L=30MM PublishDate 2025.07.30 Versions V8.0 approvalcause NewProduct Manufacturersign APPROVEDBYCHECKEDBYDRAWNBY Customersign Structural Validation Electronic Verification Acoustic Validation Engineering Verification Quality Validation I-TOPDESIGNTECHNOLOGYCO.,LTD Room711,Building2GaoxinqilndustrailPark2,LongchangRoad, Bao'anDistrict,ShenzhenCity,China TEL:13760173603 BN970 DateofIssue:2025-7-30 FPCantenna Page(2)of(13) i-TopDrawing#20250730Revision#:Initial Release Index 一、Cover···········································································1 二、Index···········································································2 三、Changehistory ····························································· 3 四、Thebasicparameters ····················································· 4 五、TestEquipment&Conditions············································5 六、Performancetesting···················································6-11 七、ProductDrawing··························································12 八、RoHS ·········································································· 13 九、Productpackaginginstructions ·································· 13 BN970 DateofIssue:2025-7-30 FPCantenna Page(3)of(13) i-TopDrawing#20250730Revision#:Initial Release 三、Changehistor Number Effectivedate Changerecord R12025.06.06Initialrelease R22025.07.30Antenna change BN970 DateofIssue:2025-7-30 FPCantenna Page(4)of(13) i-TopDrawing#20250730Revision#:Initial Release 四、Thebasicparameters A.ElectricalCharacteristics Frequency2400MHZ-2500MHZ VSWR<3.0 AvgEfficiency>30% Impedance50±25Ohm PolarizationLinear PeakGain2.4GHZ:3.65dBi B.Material&MechanicalCharacteristics MaterialofRadiatorFPCblack CableTypeFour ConnectorTypeΦ0.64L=30MM Dimension25.00*18.00±0.15MM C.Environmental OperationTemperature-20 ̊C~+60 ̊C StorageTemperature-20 ̊ C~+60 ̊ C BN970 DateofIssue:2025-7-30 FPCantenna Page(5)of(13) i-TopDrawing#20250730Revision#:Initial Release 五、Introduction Microwavedarkroomandnoreflectionchamber,absorbingshortwavedarkroom darkroom.Microwavedarkroombyelectromagneticshieldingroom,filteringand isolation,groundingdevice,theventilationduct,indoordistributionsystem, monitoringsystem,ceilingwavematerialpart.Itisbasedonthewaveabsorbing materialastheliningoftheshieldroom,itcanabsorbthemostofthe electromagneticenergyintothesixwallisabettersimulationofthefree spaceconditions. Themainworkingprincipleofmicrowaveanechoicchamberisaccordingtothe electromagneticwaveinthemediumfromthelowmagneticguidemagnetic directionofpropagationrules,absorbingmaterialstoguidethe electromagneticwaveusinghighpermeability,throughresonance,asubstantial absorptionofelectromagneticwaveradiationenergy,bycouplingthe electromagneticenergyintoheatenergy. mainperformance： Frequencyrange:400MHz~6GHzceilingreflectedwavelossmaterials:400MHz~ 6GHzisequaltoormorethan15dB(microwaveabsorbingmaterialbycomposite waveabsorbingmaterials,namelytaperedcontainingcarbonspongesuctionwave materialpasteinferrite). BN970 DateofIssue:2025-7-30 FPCantenna Page(6)of(13) i-TopDrawing#20250730Revision#:Initial Release 六、TestReport ThosespecificationswerespeciallydefinedforBN970model. 1.Prototypeposition: 2.Environmentaltreatment: Theoriginalassemblysetupremainsunchanged BN970 DateofIssue:2025-7-30 FPCantenna Page(7)of(13) i-TopDrawing#20250730Revision#:Initial Release 3.VSWR 1.MeasuringMethod A50Ωcoaxialcableisconnectedtotheantenna.Thenthis cableisconnectedtoanetworkanalyzertomeasuretheVSWR. Keepingthisjigawayfrommetalatleast20cm 2.MeasurementfrequencypointsandVSWRvalue BN970 DateofIssue:2025-7-30 FPCantenna Page(8)of(13) i-TopDrawing#20250730Revision#:Initial Release 3.2D/3Dfieldpatterndiagram BN970 DateofIssue:2025-7-30 FPCantenna Page(9)of(13) i-TopDrawing#20250730Revision#:Initial Release 4.Passiveefficiency&Gain 5.OTAactive Frequency (MHz) Efficiency (%) Gain (dBi) 240039.583.03 241041.483.16 242042.643.16 243046.163.57 244044.413.46 245046.283.65 246045.563.55 247042.763.22 248042.933.12 249043.332.97 250040.282.42 BN970 DateofIssue:2025-7-30 FPCantenna Page(10)of(13) i-TopDrawing#20250730Revision#:Initial Release 6.Active3D&2Dfieldpatterndiagrams FreespaceTRP FreespaceTIS BN970 DateofIssue:2025-7-30 FPCantenna Page(11)of(13) i-TopDrawing#20250730Revision#:Initial Release Headmodelspace-TRP Headmodelspace-TIS BN970 DateofIssue:2025-7-30 FPCantenna Page(12)of(13) i-TopDrawing#20250730Revision#:Initial Release 七、ProductDrawing BN970 DateofIssue:2025-7-30 FPCantenna Page(13)of(13) i-TopDrawing#20250730Revision#:Initial Release 八、RoHS AntennaD7.TXBK9703meetsRoHSrequirementsSeeelectronicfilefordetails. 九、Productpackaginginstructions A.packingshouldmeetthemoistureproof,vibration,pressureand mildewproof,etc. B.thesmallestpackingunitlogomusthavethemanufacturertrademarks, productmodel,name,codeandquantity. C.intheattachedpackinglist,certificateofapproval,andthefactory inspectionreport. ***************************END****************************

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A01 Rev. A/1 Aug 16,2024 Report No.: SZCR250800343404 Page: 1 of 33 Appendix C Calibration certificate 1. Dipole D2450V2-SN 733 2. DAE DAE4-SN 1830 3. Probe EX3DV4-SN 7838 4. dipole extend

Dipole D2450V2 SN 733 Head Liquid Date of Measurement Return Loss(dB) Δ % Impedance (Ω) ΔΩ() 2022/11/2 -28.7 / 50.2 / 2024/10/31 -28.1 2.14% 50.7 0.5Ω - End of Appendix -

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/1 Report No.: SZCR250800343404 Page: 1 of 34 Keny Xu EMC Laboratory Manager FCC SAR TEST REPORT Application No.: SZCR2508003434AT Applicant: Beyerdynamic Address of Applicant: 56 Central Avenue Farmingdale New York 11735 United States Manufacturer: beyerdynamic GmbH & Co.KG Address of Manufacturer: Theresienstrasse 8, 74072 Heilbronn, GermanyAVENTHO 200 EUT Description: Wireless Over-Ear Headphones Model No.: AVENTHO 200 Trade Mark: beyerdynamic FCC ID: OSDAVENTHO200 Standards: FCC 47CFR §2.1093 Date of Receipt: 2025-08-12 Date of Test: 2025-08-14 Date of Issue: 2025-08-20 Test Result : PASS * * In the configuration tested, the EUT detailed in this report complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/1 Report No.: SZCR250800343404 Page: 2 of 34 Revision Record Version Description Date Remark 01 2025-08-20 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu / Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/1 Report No.: SZCR250800343404 Page: 3 of 34 TEST SUMMARY Frequency Band Maximum Reported SAR(W/kg) Head Extremity BT 0.071 0.11 SAR Limited(W/kg) 1.6 4.0 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/1 Report No.: SZCR250800343404 Page: 4 of 34 Contents TEST SUMMARY .............................................................................................................................. 3 1 General Information .......................................................................................................... 6 1.1 General Description of EUT ........................................................................................ 6 1.1.1 DUT Antenna Locations ....................................................................................... 7 1.2 Test Specification ......................................................................................................... 8 1.3 RF exposure limits........................................................................................................ 9 1.4 Test Location ............................................................................................................... 10 1.5 Test Facility ................................................................................................................. 10 2 Laboratory Environment ............................................................................................... 11 3 SAR Measurements System Configuraion ............................................................... 12 3.1 The SAR Measurement System .............................................................................. 12 3.2 Isotropic E-field Proble EX3DV4 .............................................................................. 14 3.3 Data Acquisition Electronics (DAE) ......................................................................... 15 3.4 SAM Twin Phantom ................................................................................................... 15 3.5 ELI Phantom................................................................................................................ 16 3.6 Device Holder for Transmitters ................................................................................ 17 3.7 Measurement Procedure ........................................................................................... 18 3.7.1 Scanning procedure ............................................................................................ 18 3.7.2 Data storage ......................................................................................................... 20 3.7.3 Data Evaluation by SEMCAD ............................................................................ 20 4 SAR measurement variability and uncertainty ....................................................... 22 4.1 SAR measurement variability ................................................................................... 22 4.2 SAR measurement uncertainty ................................................................................ 22 5 Desciption of Test Position .......................................................................................... 23 5.1 The EUT Test Position .............................................................................................. 23 6 SAR System Verificaion Procedure ........................................................................... 24 6.1 Tissue Simulate Liquid .............................................................................................. 24 6.1.1 Recipes for Tissue Simulate Liquid .................................................................. 24 6.1.2 Measurement for Tissue Simulate Liquid ........................................................ 25 6.2 SAR System Check.................................................................................................... 26 6.2.1 Justification for Extended SAR Dipole Calibrations ....................................... 27 6.2.2 Summary System Check Result(s)................................................................... 28 6.2.3 Detailed System Check Results ........................................................................ 28 7 Test Configuration .......................................................................................................... 29 7.1 Operation Configurations .......................................................................................... 29 7.1.1 BT Test Configuration ......................................................................................... 29 8 Test Result ........................................................................................................................ 30 8.1 Measurement of RF Conducted Power ................................................…

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FCC COVERED LIST DECLARATION LETTER Page 1 of 1 Revision 1.0 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name Beyerdynamic Address 56 Central Avenue Farmingdale New York 11735 United States FRN 0006993679 Grantee Code OSD FCC ID: OSDAVENTHO200 Authorized Contact Name Ulrich Roth Contact Phone 631-293-3200 Contact Email [email protected] Beyerdynamic (“the applicant”) certifies: - 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. - as of the date of the filing of the application, the applicant [is not] identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. - the software to be loaded prior to marketing of the equipment identified above is not “covered” software manufactured by any entity including predecessors, successors, parents, subsidiaries, affiliates or any entity which has rebranded or relabeled the software produced by the entity(ies) identified on the “Covered List”. - the device is not capable of storing or running software listed on the covered list and therefore is inherently compliant. NOTE: Justification/evidence explaining how complian ce is met must accompany this letter Link to the Covered List: Covered List Applicant Signature: Date: 2025-08-18 Print Name: Ulrich Roth Title: Manager Product Compliance & IP *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A04 Rev. A/0 Aug 16,2024 Report No.: SZCR250600240804 Page: 1 of 3 Appendix B Detailed Test Results 1.BT BT SGS-SAR LabDate: 2025-08-14 AVENTHO 200 Bluetooth DH5 0CH Rear cheek 0mm AVENTHO 200 Communication System: ISM 2.4 GHz Band; Frequency: 2402.000 Medium: Head Simulating Liquid. Medium parameters used: f= 2402.000 MHz; σ= 1.78 S/m; ε r = 38.7 DASY8 Configuration: - Probe: EX3DV4 - SN7838; ConvF(7.13, 6.8, 7.01); Calibrated: 2024-11-20 - Sensor-Surface: 1.4 mm - Electronics: DAE4ip Sn1830; Calibrated: 2024-10-18 - Phantom: Twin-SAM V8.0 (30deg probe tilt); Serial: 2156 - Measurement Software: cDASY8 V16.4.0.5005 Area Scan (120.0 mm x 144.0 mm): Measurement Grid: 12.0 mm x 12.0 mm SAR (1g) = 0.174 W/kg; SAR (10g) = 0.071 W/kg; Zoom Scan (30.0 mm x 30.0 mm x 30.0 mm): Measurement Grid: 5.0 mm x 5.0 mm x 1.5 mm Power Drift = -0.07 dB SAR (1g) = 0.172 W/kg; SAR (10g) = 0.066 W/kg; M2/M1 [%]=67.5 Dist 3dB Peak [mm]=5.2 SGS-SAR LabDate: 2025-08-14 AVENTHO 200 Bluetooth DH5 39CH Touch cheek 0mm AVENTHO 200 Communication System: ISM 2.4 GHz Band; Frequency: 2441.000 Medium: Head Simulating Liquid. Medium parameters used: f= 2441.000 MHz; σ= 1.80 S/m; ε r = 38.6 DASY8 Configuration: - Probe: EX3DV4 - SN7838; ConvF(7.13, 6.8, 7.01); Calibrated: 2024-11-20 - Sensor-Surface: 1.4 mm - Electronics: DAE4ip Sn1830; Calibrated: 2024-10-18 - Phantom: Twin-SAM V8.0 (30deg probe tilt); Serial: 2156 - Measurement Software: cDASY8 V16.4.0.5005 Area Scan (120.0 mm x 144.0 mm): Measurement Grid: 12.0 mm x 12.0 mm SAR (1g) = 0.049 W/kg; SAR (10g) = 0.025 W/kg; Zoom Scan (30.0 mm x 30.0 mm x 30.0 mm): Measurement Grid: 5.0 mm x 5.0 mm x 1.5 mm Power Drift = -0.06 dB SAR (1g) = 0.051 W/kg; SAR (10g) = 0.026 W/kg; M2/M1 [%]=80.2 Dist 3dB Peak [mm]=10.2 - End of Appendix -

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01-A03 Rev. A/0 Aug 16,2024 Report No.: SZCR250800343404 Page: 1 of 2 Appendix A Detailed System Check Results 1. System Performance Check System Performance Check 2450 MHz Head Date: 2025-08-14 SGS-SAR Lab System Performance Check 2450 MHz Head D2450V2-SN 733 Communication System: ; Frequency: 2450.000 Medium: Head Simulating Liquid. Medium parameters used: f= 2450.000 MHz; σ= 1.81 S/m; ε r = 38.6 DASY8 Configuration: - Probe: EX3DV4 - SN7838; ConvF(7.13, 6.8, 7.01); Calibrated: 2024-11-20 - Sensor-Surface: 1.4 mm - Electronics: DAE4ip Sn1830; Calibrated: 2024-10-18 - Phantom: Twin-SAM V8.0 (30deg probe tilt); Serial: 2156 - Measurement Software: cDASY8 V16.4.0.5005 Area Scan (40.0 mm x 96.0 mm): Measurement Grid: 10.0 mm x 12.0 mm SAR (1g) = 13.2 W/kg; SAR (10g) = 6.47 W/kg; Zoom Scan (30.0 mm x 30.0 mm x 30.0 mm): Measurement Grid: 5.0 mm x 5.0 mm x 1.5 mm Power Drift = -0.02 dB SAR (1g) = 13.…

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