2A58W-M88Bean Earbuds

Dongguan Heng Da Rui Electronic Technology Co., Ltd. Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Apr. 15, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2A58W-M88 Dongguan Heng Da Rui Electronic Technology Co., Ltd. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Ping Luo Title: Manager Address: Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Tel.: 13670287893 Email: [email protected]

Dongguan Heng Da Rui Electronic Technology Co., Ltd. Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Apr. 15, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: 2A58W-M88 Product Name: Bean Earbuds This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Printed Name: Ping Luo Title: 13670287893 Address: Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Tel.: 13670287893 Email: [email protected] Dongguan Heng Da Rui Electronic Technology Co., Ltd. Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

Dongguan Heng Da Rui Electronic Technology Co., Ltd. Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: Apr. 15, 26 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2A58W-M88 [Dongguan Heng Da Rui Electronic Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, [AOGES CO., LIMITED] (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States 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 the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. [AOGES CO., LIMITED] ("the agent) understand it is the agent's obligation 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. Designated U.S. Agent Company Name: AOGES CO., LIMITED FRN: 0033947847 Address: 1624 Market St, Ste 226, #30327 Denver CO, 80202 US Signature: Contact Person: XIAOYAN LAl Tel: 303 623 1940 Email: [email protected] Applicant Company Name: Dongguan Heng Da Rui Electronic Technology Co., Ltd. FRN: 0037785706 Address: Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Signature: Contact Person: Ping Luo Tel: 13670287893 Email: [email protected]

Differences Description We Dongguan Heng Da Rui Electronic Technology Co.,Ltd. state: Product： Bean Earbuds Model Name： MISHUAI MS-M88, MISHUAI MS-M88 Pro Trade Name: MISHUAI The electrical circuit design, layout, components used and internal wiring for above models are identical, Only different in model name and appearance Colors. Signatory Sincerely yours, Applicant Signature Printed Name: Ping Luo Title: Manager Address: Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Tel.: 13670287893 Email: [email protected]

Dongguan Heng Da Rui Electronic Technology Co., Ltd. Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Apr. 15, 26 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2A58W-M88 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below :  Block Diagram  Schematics  Operational Description The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Sincerely, Printed Name: Ping Luo Title: Manager Address: Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Tel.: Manager Email: [email protected]

Dongguan Heng Da Rui Electronic Technology Co., Ltd. Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Apr. 15, 26 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2A58W-M88 I, the undersigned, hereby authorize (SHENZHEN STS TEST SERVICES CO.,LTD.) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (SHENZHEN STS TEST SERVICES CO.,LTD.) shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with (Dongguan Heng Da Rui Electronic Technology Co., Ltd.). We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, Printed Name: Ping Luo Title: Manager Address: Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Tel.: 13670287893 Email: [email protected]

Page 1 of 7 ReportNo.:STS2511228 APPENDIX-PHOTOGRAPHSOFEUTCONSTRUCTIONALDETAILS Photo1 Photo2 Page 2 of 7 ReportNo.:STS2511228 Photo3 Photo4 Page 3 of 7 ReportNo.:STS2511228 Photo5 Photo6 Page 4 of 7 ReportNo.:STS2511228 Photo7 Photo8 Page 5 of 7 ReportNo.:STS2511228 Photo9 Photo10 Page 6 of 7 ReportNo.:STS2511228 Photo11 Photo12 Page 7 of 7 ReportNo.:STS2511228 Photo13 Photo14

FCC ID Label Location The product does not have enough space to place the label, and FCC ID label is reflected in the user manual and package, as below: User Manual: Package:

Page 1 of 4 ReportNo.:STS2511228 APPENDIX-PHOTOGRAPHSOFEUTCONSTRUCTIONALDETAILS Photo1 Photo2 Page 2 of 4 ReportNo.:STS2511228 Photo3 Photo4 BTAntenna Page 3 of 4 ReportNo.:STS2511228 Photo5 Photo6 Page 4 of 4 ReportNo.:STS2511228 Photo7

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. MPE Report Report No.:STS2511228H02 Issued for Dongguan Heng Da Rui Electronic Technology Co.,Ltd. Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Product Name: Bean Earbuds Brand Name: MISHUAI Model Name: MISHUAI MS-M88 Series Model(s): MISHUAI MS-M88 Pro FCC ID: 2A58W-M88 Test Standards: FCC 47CFR §2.1093 Page 2 of 9 Report No.: STS2511227H02 TEST REPORT Applicant’s Name ................. : Dongguan Heng Da Rui Electronic Technology Co.,Ltd. Address .................................. : Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Manufacturer's Name .......... : Dongguan Heng Da Rui Electronic Technology Co.,Ltd. Address .................................. : Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Product Description Product Name ........................ : Bean Earbuds Brand Name ........................... : MISHUAI Model Name........................... : MISHUAI MS-M88 Series Model(s) ...................... : MISHUAI MS-M88 Pro Test Standards ..................... : FCC 47CFR §2.1093 447498 D04 Interim General RF Exposure Guidance v01 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Date of Test ............................................ : Date of receipt of test item ...................... : 27 Nov. 2025 Date (s) of performance of tests.............. : 27 Nov. 2025~23 Mar. 2026 Date of Issue ........................................... : 23 Mar. 2026 Test Result ............................................... : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 9 Report No.: STS2511227H02 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 9 Page 4 of 9 Report No.: STS2511227H02 Revision History Rev. Issue Date Report No. Effect Page Contents 00 23 Mar. 2026 STS2511228H02 ALL Initial Issue Page 5 of 9 Report No.: STS2511227H02 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Bean Earbuds Brand Name MISHUAI Model Name MISHUAI MS-M88 Series Model(s) MISHUAI MS-M88 Pro Model Difference Only different in model name and appearance Colors. Product Description The EUT is Bean Earbuds Operation Frequency: 2402 – 2480 MHz Modulation Type: BT BR(1Mbps): GFSK BT EDR(2Mbps): π/4-DQPSK BT EDR(3Mbps): 8DPSK Antenna Type: chip Antenna Gain: 3dBi Power Rating Input: DC 5V 0.5A Adapter N/A Battery EAR Model:501010 Brand: N/A Rated Voltage: 3.7V Charge Limit Voltage: 4.2V Capacity: 40mAh Charging box: Model:902025 Brand: N/A Rated Voltage: 3.7V Charge Limit Voltage: 4.2V Capacity: 400mAh Hardware Version V5 Software Version V029 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 9 Report No.: STS2511227H02 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 7 of 9 Report No.: STS2511227H02 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). RF Source frequency (MHz) Threshold ERP(watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2R 2 . Page 8 of 9 Report No.: STS2511227H02 For multiple RF sources: Multiple RF sources are exempt if: (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeter…

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深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 1 产品规格承认书 SPECIFICATIONS 客户: CUSTOMER: 产品名称: DESCRIPTION:地磁天线 客户型号: CUSTOMERPARTNO: 产品型号: OURMODELNO:PBX1608MA02 日期: DATE: 确认签字,盖章后请返回承认书一份 PLEASERETURNTOUSONECOPYOF“SPECIFICATIONFORAPPROVAL” WITHYOURAPPROVEDSIGNATURES 核准审核刘飞制作刘小美 客户承认签印 日期 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 2 PBX1608MA02Specification OperatingTemp.:-40°C~+85°C 1. FEATURES : ●Lightweight,compact ●Widebandwidth,lowcost ●Built-inantennawithhighgain 2. APPLICATIONS : ●Bluetooth,WirelessLAN,MobileTV ●HomeRFSystem,etc 3.PRODUCTIDENTIFICATION (1)(2)(3) (1)Producttype:MultilayerchipAntenna (2)CenterFrequency:2450MHz (3)ExternalDimensions(L×W)(mm):1.6*0.8 4.SHAPEANDDIMENSIONS: LWHA 1.6±0.20.8±0.2 0.8 ± 0.20.3 ± 0.1 CH IP45 016 2 08 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 3 ●天线位于PCB板内部或中间位置时（长条式耳机）：（单位：mm） 天线最优放置于中间区域，净空区周围最优需要至少一排过孔。 ●天线位于PCB板边缘位置时（入耳式耳机和部分长条式耳机）： 天线最优放置于PCBA的边缘；天线及其走线设置在单层。 设计标准： 1.图中的尺寸仅作为参考；实际尺寸会根据不同版型进行优化。 2.净空区周围最优需要至少一排过孔，孔径0.3mm，与PCBA上的其它回路或物料进行隔离。 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 4 天线封装方案一（ 3.5mm × 7.5mm） 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 5 天线封装方案二（ 4.5mm × 6mm） 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 6 天线封装方案三（ 1.5mm × 10mm） 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 7 ElectricalCharacteristics CharacteristicCurves 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 8 RadiationPattern 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 9 3DRadiationPattern 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 10 RadiationPattern TheGainpatternismeasuredinFAR-fieldchamber.DUTisplacedonthetableofrotator,a standardhornantennaandVectorNetworkAnalyzerisusedtocollectdata. EnvironmentalCharacteristics (1)ReliabilityTest (2)StorageCondition (a)Atwarehouse: Thetemperatureshouldbewithin0~30°Candhumidityshouldbelessthan60%RH. Theproductshouldbeusedwithin1yearfromthetimeofdelivery. (b)Onboard: Thetemperatureshouldbewithin-40~85°Candhumidityshouldbelessthan85%RH. (3)OperatingTemperatureRange Operatingtemperaturerange:-40 °C to+105 °C . 深圳市朋伴兴业科技有限公司 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THESEDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-1608Specification DOCUMENT NO. 1608 SPECREV. P1 11 8.RecommendedReflowSoldering…

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The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.:STS2511228W02 Issued for Dongguan Heng Da Rui Electronic Technology Co.,Ltd. Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Product Name: Bean Earbuds Brand Name: MISHUAI Model Name: MISHUAI MS-M88 Series Model(s): MISHUAI MS-M88 Pro FCC ID: 2A58W-M88 Test Standards: FCC Part15.247 Page 2 of 102 Report No.: STS2511228W02 TEST REPORT Applicant’s Name ................. : Dongguan Heng Da Rui Electronic Technology Co.,Ltd. Address .................................. : Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Manufacturer's Name ........... : Dongguan Heng Da Rui Electronic Technology Co.,Ltd. Address .................................. : Room 701, Unit 1, Building 2, No. 58, Humen Zhongxing Road, Humen Town, Dongguan City, Guangdong Province, China Product Description Product Name ........................ : Bean Earbuds Brand Name ........................... : MISHUAI Model Name ........................... : MISHUAI MS-M88 Series Model(s) .................... : MISHUAI MS-M88 Pro Standards ............................. : FCC Part15.247 Test Procedure ....................... : ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ............................... : Date of receipt of test item ......... : 27 Nov. 2025 Date (s) of performance of tests : 27 Nov. 2025~23 Mar. 2026 Date of Issue ............................. : 23 Mar. 2026 Test Result ................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 102 Report No.: STS2511228W02 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 10 2.4 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 12 2.5 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 13 2.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 14 2.7 EQUIPMENTS LIST 15 3. EMC EMISSION TEST 16 3.1 CONDUCTED EMISSION MEASUREMENT 16 3.2 RADIATED EMISSION MEASUREMENT 20 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 38 4.1 LIMIT 38 4.2 TEST PROCEDURE 38 4.3 TEST SETUP 39 4.4 EUT OPERATION CONDITIONS 39 4.5 TEST RESULTS 39 5. NUMBER OF HOPPING CHANNEL 40 5.1 LIMIT 40 5.2 TEST PROCEDURE 40 5.3 TEST SETUP 40 5.4 EUT OPERATION CONDITIONS 40 5.5 TEST RESULTS 40 6. AVERAGE TIME OF OCCUPANCY 41 6.1 LIMIT 41 6.2 TEST PROCEDURE 41 6.3 TEST SETUP 41 6.4 EUT OPERATION CONDITIONS 41 6.5 TEST RESULTS 41 7. HOPPING CHANNEL SEPARATION MEASUREMEN 42 7.1 LIMIT 42 Page 4 of 102 Report No.: STS2511228W02 Table of Contents Page 7.2 TEST PROCEDURE 42 7.3 TEST SETUP 42 7.4 EUT OPERATION CONDITIONS 42 7.5 TEST RESULTS 42 8. BANDWIDTH TEST 43 8.1 LIMIT 43 8.2 TEST PROCEDURE 43 8.3 TEST SETUP 43 8.4 EUT OPERATION CONDITIONS 43 8.5 TEST RESULTS 43 9. OUTPUT POWER TEST 44 9.1 LIMIT 44 9.2 TEST PROCEDURE 44 9.3 TEST SETUP 45 9.4 EUT OPERATION CONDITIONS 45 9.5 TEST RESULTS 45 10. ANTENNA REQUIREMENT 46 10.1 STANDARD REQUIREMENT 46 10.2 EUT ANTENNA 46 APPENDIX 1-TEST DATA 47 DWELL TIME 47 MAXIMUM PEAK CONDUCTED OUTPUT POWER 57 -20DB BANDWIDTH 63 CARRIER FREQUENCIES SEPARATION 69 NUMBER OF HOPPING CHANNEL 75 BAND EDGE 78 BAND EDGE(HOPPING) 85 CONDUCTED RF SPURIOUS EMISSION 92 APPENDIX 2-PHOTOS OF TEST SETUP 102 Page 5 of 102 Report No.: STS2511228W02 Revision History Rev. Issue Date Report No. Effect Page Contents 00 23 Mar. 2026 STS2511228W02 ALL Initial Issue Page 6 of 102 Report No.: STS2511228W02 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247(a)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(1)(iii) Number of Hopping Frequency PASS -- 15.247(a)(1)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- Note: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. Page 7 of 102 Report No.: STS2511228W02 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.751dB 2 Unwanted Emissions, conducted ±2.888dB 3 All emissions, radiated 9K-30MHz ±2.48dB 4 All emissions, radiated 30M-1GHz ±2.52dB 5 All emissions, radiated 1G-18GHz ±3.48dB 6 All emissions, radiated>18GHz ±4.18dB 7 Conducted Emission (9KHz-150KHz) ±2.48dB 8 Conducted Emission (150KHz-30MHz) ±2.52dB 9 Occupied Chan…

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Page 1 of 2 FCC ID: 2A58W-M88 Setup photo AC Conduction RF Conduction Page 2 of 2 FCC ID: 2A58W-M88 RE (Below 1GHz) RE (Above 1GHz)