2BKHB-M20Os Verdadeiros Fones de Ouvido Sem Fio

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 u ndesired operation. Changes or modifications to this unit 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. This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement in portable exposure condition without restriction. Product Model: M20 PMN: Os Verdadeiros Fones de Ouvido Sem Fio ISED statement English: This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. French: Cet appareil contient des émetteurs/récepteurs exempts de licence qui sont conformes aux RSS exemptés de licence d'Innovation, Sciences et Développement économique Canada. L'exploitation est soumise aux deux conditions suivantes : (1) Cet appareil ne doit pas provoquer d'interférences. (2) Cet appareil doit accepter toute interférence, y compris les interférences susceptibles de provoquer un fonctionnement indésirable de l'appareil. This device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with RSS 102 RF exposure, users can obtain Canadian information on RF exposure and compliance. cet appareil est conforme à l'exemption des limites d'évaluation courante dans la section 2.5 du cnr - 102 et conformité avec rss 102 de l'exposition aux rf, les utilisateurs peuvent obtenir des données canadiennes sur l'exposition aux champs rf et la conformité. This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment. Cet équipement est conforme aux limites d'exposition aux rayonnements du Canada établies pour un environnement non contrôlé. The device has been evaluated to meet general RF exposure requirement. This equipment should be installed and operated with minimum distance 0mm between the radiator & your body. L'appareil a été évalué pour répondre aux exigences générales d'exposition aux RF. Cet équipement doit être installé et utilisé avec une distance minimale de 0 mm entre le radiateur et votre corps.

SonicMax Inc 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: SonicMax Inc Address: 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 Product Name: Os Verdadeiros Fones de Ouvido Sem Fio FCC ID: 2BKHB-M20 Model(s): M20 2.911(d)(5)(i) Equipment Type We, SonicMax Inc (“the applicant”) certify that the equipment for which authorization is sought through certification is not: • Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules. • Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Date: August 22, 2024 Name: Jane Chen Title: General Manager Company: SonicMax Inc NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

SonicMax Inc 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: SonicMax Inc Address: 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 Product Name: Os Verdadeiros Fones de Ouvido Sem Fio FCC ID: 2BKHB-M20 Model(s): M20 2.911(d)(5)(ii) Applicant filing We, SonicMax Inc (“the applicant”) certify that, as of the date of the filing of the application, the applicant is is not identified on the “Covered List” NOTE 1 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Signature: Date: 2024/8/22 Name: Jane Chen Title: General Manager Company: SonicMax Inc NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the- communications-supply-chain-through-the

SonicMax Inc 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084, United States of America 2.911 (d)(7)USA Agent v1.5 Section 2.911(d)(7) USA Agent for Service of Process Company name: SonicMax Inc Address: 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084, United States of America Product Name: True Wireless Earbuds FCC ID: 2BKHB-M20 2.911(d)(7) USA Designated Agent for Service of Process We, [SonicMax Inc] (“the applicant”) designate [SonicMax Inc] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either we the grantee have permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Company name: SonicMax Inc USA Address: 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084, United States of America FRN Number: 0035844026 Contact Name: Jane Chen Telephone No: +1 8328336822 Email: [email protected] Applicant Company name: SonicMax Inc Address: 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084, United States of America Grantee FRN Number: 0035844026 FCC Grantee Code: 2BKHB Contact Name: Jane Chen Telephone No: +1 8328336822 Email: [email protected] SonicMax Inc 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084, United States of America 2.911 (d)(7)USA Agent v1.5 Signature: Title: Signature: Title: General Manager Date: 2024-9-5 Date: 2024-9-5 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

SonicMax Inc 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 Letter of Authorization Company name: SonicMax Inc Address: 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 Product Name: Os Verdadeiros Fones de Ouvido Sem Fio FCC ID: 2BKHB-M20 Model(s): M20 Product Description: Os Verdadeiros Fones de Ouvido Sem Fio We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2024/8/22 Name: Jane Chen Title: General Manager Company: SonicMax Inc

SonicMax Inc 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024/8/22 Subject; Request for Confidentiality FCC ID: 2BKHB-M20 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 Operational Description 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: Jane Chen Title: General Manager

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 5 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 5 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 5 Fig.5 Fig.6 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 4 of 5 Fig.7 Fig.8 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 5 of 5 Fig.9

Label & Label Location Size: 20mm(L)*5mm(W) Model: M20 IC: 32959-M20 HVIN: M20 FCC ID: 2BKHB-M20

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 4 INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Bluetooth Antenna Bluetooth Antenna Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 4 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 4 Fig.5 Fig.6 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 4 of 4 Fig.7

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 RADIO FREQUENCY EXPOSURE Limit According to section B.4 of 447498 D04 Interim General RF Exposure Guidance v01 SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time-averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Where and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 The example values shown in Table B.2 are for illustration only. Frequency (MHz) Distance (mm) 5 10 15 20 25 30 35 40 45 50 300 39 65 88 110 129 148 166 184 201 217 450 22 44 67 89 112 135 158 180 203 226 835 9 25 44 66 90 116 145 175 207 240 1900 3 12 26 44 66 92 122 157 195 236 2450 3 10 22 38 59 83 111 143 179 219 3600 2 8 18 32 49 71 96 125 158 195 5800 1 6 14 25 40 58 80 106 136 169 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Conducted Power Results Test Mode Antenna Frequency[MHz] Result[dBm] DH5 Ant1 2402 1.03 DH5 Ant1 2441 0.81 DH5 Ant1 2480 -0.21 2DH5 Ant1 2402 1.78 2DH5 Ant1 2441 1.55 2DH5 Ant1 2480 0.52 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 0.5 0.5 -0.5 Tolerance ±(dB) 1 1 1 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 1.5 1 0 Tolerance ±(dB) 1 1 1 Results Test Mode Max Conducted Tune Up Power(dBm) Max of ERP and Conducted Power including Tune Up (dBm) Max of ERP and Conducted Power including Tune Up (mW) Exemption Limit(mW) GFSK 1.5 1.5 1.41 3 π/4-DQPSK 2.5 2.5 1.78 3 Max of ERP and Conducted Power including Tune Up (dBm) = Max Conducted Tune Up Power(dBm) and Max Conducted Tune Up Power(dBm) + Antenna Gain(dBi)-2.15), whichever is greater. The antenna gain of the EUT for BT is 0dBi (Max). the Maximum Eirp is used for Routine Evaluation Exemption according to B.4 of 447498 D04 Interim General RF Exposure Guidance v01. So, the SAR evaluation is not required.

天线规格书 Antenna Specific 制造商(Manufacturer) ： RAIN International Technology Co., Ltd. 地址(address) ： Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 产品种类：Internal Antenna Product Type: Internal Antenna 产品技术指标(Technical parameter) Electronic Parameter 频率范围(Frequency Range) 2400~2500MHz 输入阻抗(input impedance) 50Ω 驻波比(VSWR) ≤2 增益(Gain) Max 0.0dBi Physical Parameter 材料(Material) PCB/Cu 工作温度(operation temperature) -30°C~+80°C 储存温度(store temperature) -30°C~+80°C 产品规格图(Antenna Specification chart) Test Result: Frequency Gain.dBi Frequency Efficiency 2400MHz -0.312400MHz 28% 2450MHz 0.0 2450MHz 31% 2500MHz -0.712500MHz 36% Direction: Smith Chart: VSWR:

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 1 of 35 Appendix Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Os Verdadeiros Fones de Ouvido Sem Fio Trade Mark: N/A Test Model: M20 FCC ID: 2BKHB-M20 Environmental Conditions Temperature: 23.8°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Hugo Chen NOTE N/A Appendix A: 20dB Emission Bandwidth Test Result TestMode Antenna Frequency[MHz] 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 1.029 2401.514 2402.543 --- --- DH5 Ant1 2441 0.996 2440.544 2441.540 --- --- DH5 Ant1 2480 1.005 2479.523 2480.528 --- --- 2DH5 Ant1 2402 1.317 2401.379 2402.696 --- --- 2DH5 Ant1 2441 1.296 2440.400 2441.696 --- --- 2DH5 Ant1 2480 1.302 2479.382 2480.684 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 2 of 35 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 3 of 35 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 4 of 35 2DH5-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 5 of 35 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.88996 2401.5953 2402.4852 --- --- DH5 Ant1 2441 0.89118 2440.5945 2441.4857 --- --- DH5 Ant1 2480 0.89228 2479.5946 2480.4869 --- --- 2DH5 Ant1 2402 1.1996 2401.4387 2402.6383 --- --- 2DH5 Ant1 2441 1.2004 2440.4386 2441.6390 --- --- 2DH5 Ant1 2480 1.1883 2479.4456 2480.6339 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 6 of 35 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 7 of 35 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 8 of 35 2DH5-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 9 of 35 Appendix C: Maximum peak conducted output power Test Result Test Mode Antenna Frequency[MHz] Conducted Peak Power[dBm] Conducted Limit[dBm] Verdict DH5 Ant1 2402 1.03 ≤20.97 PASS DH5 Ant1 2441 0.81 ≤20.97 PASS DH5 Ant1 2480 -0.21 ≤20.97 PASS 2DH5 Ant1 2402 1.78 ≤20.97 PASS 2DH5 Ant1 2441 1.55 ≤20.97 PASS 2DH5 Ant1 2480 0.52 ≤20.97 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 10 of 35 Test Graphs DH5-Ant1-2402-PASS DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 11 of 35 DH5-Ant1-2480-PASS 2DH5-Ant1-2402-PASS 2DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 12 of 35 2DH5-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 13 of 35 Appendix D: Carrier frequency separation Test Result TestMode Antenna Frequency[MHz] Result[MHz] Limit[MHz] Verdict DH5 Ant1 Hop 1.012 ≥0.686 PASS 2DH5 Ant1 Hop 0.976 ≥0.878 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 14 of 35 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 15 of 35 Appendix E: Time of occupancy Test Result TestMode Antenna Frequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH5 Ant1 Hop 2.885 130 0.375 ≤0.4 PASS 2DH5 Ant1 Hop 2.891 130 0.376 ≤0.4 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 16 of 35 Test Graphs DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 17 of 35 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 18 of 35 Appendix F: Number of hopping channels Test Result TestMode Antenna Frequency[MHz] Result[Num] Limit[Num] Verdict DH5 Ant1 Hop 79 ≥15 PASS 2DH5 Ant1 Hop 79 ≥15 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 19 of 35 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 20 of 35 Appendix G: Band edge measurements Test Result TestMode Antenna ChName Frequency[MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 0.57 -50.07 ≤-19.43 PASS DH5 Ant1 High 2480 -0.65 -48.63 ≤-20.65 PASS DH5 Ant1 Low Hop_2402 -0.24 -49.75 ≤-20.24 PASS DH5 Ant1 High Hop_2480 -0.84 -49.5 ≤-20.84 PASS 2DH5 Ant1 Low 2402 0.67 -49.14 ≤-19.33 PASS 2DH5 Ant1 High 2480 -1.50 -49.44 ≤-21.5 PASS 2DH5 Ant1 Low Hop_2402 -2.79 -50.46 ≤-22.79 PASS 2DH5 Ant1 High Hop_2480 -3.43 -49.19 ≤-23.43 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 21 of 35 Test Graphs DH5-Ant1-2402-PASS DH5-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 22 of 35 DH5-Ant1-Hop_2402-PASS DH5-Ant1-Hop_2480-PASS 2DH5-Ant1-2402-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 23 of 35 2DH5-Ant1-2480-PASS 2DH5-Ant1-Hop_2402-PASS 2DH5-Ant1-Hop_2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BKHB-M20 Report No.: TZ0001240802FRF01 Page 24 of 35 Appendix H: Conducted Spurious Emission Test Result TestMode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 2402 0~Reference 0.50 0.50 --- PASS DH5 Ant1 2402 30~1000 0.50 -62.31 ≤-19.5 PASS DH5 Ant1 2402 1000~26500 0.50 -41.64 ≤-19.5 PASS DH5 Ant1 2441 0~Reference -0.26 -0.26 --- PASS DH5 Ant1 2441 30~1000 -0.26 -62.04 ≤-20.26 PASS DH5 Ant1 2441 1000~26500 -0.26 -39.35 ≤-20.26 PASS DH5 Ant1 2480 0~Reference -1.45 -1.45 --- PASS DH5 Ant1 2480 30~…

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FCC TEST REPORT Test report On Behalf of SonicMax Inc For Os Verdadeiros Fones de Ouvido Sem Fio Model No.: M20 FCC ID: 2BKHB-M20 Prepared for : SonicMax Inc 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 Prepared By : Shenzhen Tongzhou Testing Co.,Ltd. 1st Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: 2024/8/3 ~ 2024/8/8 Date of Report: 2024/8/9 Report Number: TZ0001240802FRF01 The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: TZ0001240802FRF01 Page 2 of 35 TEST RESULT CERTIFICATION Applicant’s name ................. : SonicMax Inc Address .................................. : 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 Manufacture's Name ............ : SonicMax Inc Address .................................. : 16365 Park Ten Place Drive, Suite 250, Houston, Texas 77084 Product description Trade Mark ................................ : N/A Product name ............................ : Os Verdadeiros Fones de Ouvido Sem Fio Model and/or type reference . : M20 Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing 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. Date of Test ........................................... : Date (s) of performance of tests ............. : 2024/8/3 ~ 2024/8/8 Date of Issue .......................................... : 2024/8/9 Test Result .............................................. : Pass Testing Engineer : (Allen Lai) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Report No.: TZ0001240802FRF01 Page 3 of 35 Revision History Revision Issue Date Revisions Revised By 00 2024/8/9 Initial Issue Andy Zhang Report No.: TZ0001240802FRF01 Page 4 of 35 TABLE OF CONTENTS 1 GENERAL INFORMATION ................................................................................................ 5 1.1 Description of Device (EUT) ................................................................................................... 5 1.2 Wireless Function Tested in this Report ................................................................................. 5 1.3 EUT configuration ................................................................................................................... 6 1.4 Description of Test Facility ...................................................................................................... 6 1.5 Statement of the Measurement Uncertainty ............................................................................ 6 1.6 Measurement Uncertainty ....................................................................................................... 7 1.7 Description of Test Modes ...................................................................................................... 7 1.8 Frequency of Channels........................................................................................................... 7 2 TEST METHODOLOGY ..................................................................................................... 8 2.1 EUT Configuration .................................................................................................................. 8 2.2 EUT Exercise ......................................................................................................................... 8 2.3 Test Sample ........................................................................................................................... 8 3 SYSTEM TEST CONFIGURATION .................................................................................... 9 3.1 Justification ............................................................................................................................. 9 3.2 EUT Exercise Software........................................................................................................... 9 3.3 Special Accessories ............................................................................................................... 9 3.4 Block Diagram/Schematics ..................................................................................................... 9 3.5 Equipment Modifications ......................................................................................................... 9 3.6 Test Setup .............................................................................................................................. 9 4 SUMMARY OF TEST RESULTS ...................................................................................... 10 5 MEASUREMENT RESULTS ............................................................................................ 11 5.1 Maximum Peak Conducted Output Power ............................................................................ 11 5.2 Frequency Separation and 20 dB Bandwidth ........................................................................ 12 5.3 Number of Hopping Frequency ............................................................................................. 13 5.4 Time of Occupancy (Dwell Time) .......................................................................................... 14 5.5 Conducted Spurious Emissions and Band Edges Test ......................................................... 16 5.6 Restricted Band Emission Limit ......................................................................…

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