2BVPV-HALOPROHalo Pro

Zhongshan Enbo Optoelectronics Co.,Ltd (304 Room third floor, 4 Building, No.1 Shatan South Road, Tanzhou Town, Zhongshan City, Guangdong Province, China) U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: Apr. 27, 26 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BVPV-HALOPRO [Zhongshan Enbo Optoelectronics Co.,Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, [HOPEK CORPORATION INC] (“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. [HOPEK CORPORATION INC] ("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: HOPEK CORPORATION INC FRN: 0034562900 GC: N/A Address: 16755 Coyote Bush Dr Unit 84, San Diego, CA 92127 United States Signature: Contact Person: Yangyang Xu Tel: 561-875-9826 Email: [email protected] Applicant Company Name: Zhongshan Enbo Optoelectronics Co.,Ltd Address: 304 Room third floor, 4 Building, No.1 Shatan South Road, Tanzhou Town, Zhongshan City, Guangdong Province, China FRN: 0038310363 Signature: Contact Person: Dave Tang Tel: 13048874510 Email: [email protected]

(Zhongshan Enbo Optoelectronics Co.,Ltd) (April 17, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BVPV-HALOPRO) [Zhongshan Enbo Optoelectronics Co.,Ltd] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) Dave Tang (Zhongshan Enbo Optoelectronics Co.,Ltd) (April 17, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BVPV-HALOPRO) [Zhongshan Enbo Optoelectronics Co.,Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Dave Tang

Zhongshan Enbo Optoelectronics Co.,Ltd (April 17, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize ( Shenzhen DACE Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Dave Tang Title: Manager

Zhongshan Enbo Optoelectronics Co.,Ltd ( April 17, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Halo Pro / H alo Pro / FCC ID: 2BVPV- HALOPRO) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☒ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Dave Tang Title: Manager

External Appendix Model: Halo Pro FCC ID: 2BVPV-HALOPRO

Label Location: Halo Pro Model: Halo Pro FCC ID: 2BVPV-HALOPRO

Zhongshan Enbo Optoelectronics Co.,Ltd FCC ID: 2BVPV-HALOPRO Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f(GHZ) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. BLE: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 1.48 1.411±12.001.58<50.491273.00YES 2.44 0.39 1.091±12.001.58<50.495143.00YES 2.480 0.29 1.071±12.001.58<50.499183.00YES 2.402 1.35 1.361±12.001.58<50.491273.00YES 2.44 0.45 1.111±12.001.58<50.495143.00YES 2.480 0.33 1.081±12.001.58<50.499183.00YES GFSK(1M Hz) GFSK(2M Hz) 2.4GWIFI: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.412 8.88 7.738±19.007.94<52.467283.00YES 2.437 8.57 7.198±19.007.94<52.480033.00YES 2.462 8.49 7.068±19.007.94<52.492723.00YES 2.412 8.29 6.758±19.007.94<52.467283.00YES 2.437 8.19 6.598±19.007.94<52.480033.00YES 2.462 8.46 7.018±19.007.94<52.492723.00YES 2.412 7.42 5.527±18.006.31<51.959833.00YES 2.437 7 5.017±18.006.31<51.969963.00YES 2.462 7.62 5.787±18.006.31<51.980043.00YES 802.11b 802.11g 802.11n( HT20) Conclusion: For the max result: 2.49272≤ FCC Limit 3.0 for 1g SAR.

深圳市深超通讯电子有限公司 第 1 页共 7 页 客户  : 品名规格 DESCRIPTION: 料号 PARTNO. ： 客户料号 CUSPARTNO.： 日期 DATE ： 呈样签章 工程 ENGINEERINGDEPARTMENT 品保 QCDEPARTMENT 业务 SALESDEPARTMENT 朱龙翁胜王彩文 客户承认签章 工程 ENGINEERINGDEPARTMENT 品保 QCDEPARTMENT 采购 PURCHASINGDEPARTMENT 联系电话：13360407372 ж承认书一式两份，惠蒙贵司承认签章 жApprovalinduplicate,pleasesignedbyyourcompany. 承認書 APPROVALSHEET IPEX一代-同轴天线-L60-1.13黑 2026-3-18 深圳市深超通讯电子有限公司 第 2 页共 7 页 深圳市深超通讯电子有限公司 第 3 页 共 7 页 电器技术参数 电 性 能 指 标 Electrical Specifications 频率范围2400~2500MHzFrequency Range2400~2500MHz 电压驻波比≤1.5VSWR≤1.5 输入阻抗50 ΩInput Impedance50 Ω 增益 1.5dBi Gain 1.5dBi 最大输入功率50WMaximum Input Power 50W 机 械 指 标Mechanical Specifications 天线线材RF113Cable TypeRF113 接口形式IPEXInput connectorIPEX 天线线长60mmCable length60mm 工作温度-40°C~+85°CWorking Temperature -40°C~+85°C 工作湿度20~80%Working Humidity20~80% 3D 深圳市深超通讯电子有限公司 第 4 页共 7 页 网络测试图（V.S.W.R） 深圳市深超通讯电子有限公司 第 5 页共 7 页 RF113规格 深圳市深超通讯电子有限公司 第 6 页共 7 页 深圳市深超通讯电子有限公司 第 7 页共 7 页 环境性能测试（Environmentperformancetest）: 项目测试条件测试结果 储存环境 在没有指定的情况下测试温度、湿度、气压如下： 1.温度为-30°C～+80°C 2.相对湿度为45%-85% 3.气压为86kpa-106kpa 电气机械性能正常 高低温试验 在70°C与-40°C之间进行5次循环，然后在正常条件下 1-2H，检查外观质量。 尺寸应满足规定并应 满足 于机械、电气性能 耐恒定湿热 试验 相对湿度95±3%，试验温度：40°C.持续2H作用后， 试品取出后5min之内测定电气性能，试品在正常条 件下1-2H，检查外观质量 尺寸应满足规定并应 满足 于机械、电气性能 振动试验 振频范围10-55HZ，位移幅值：0.35MM，加速度幅值： 50.0M/S，扫频循环次数：30次 电气机械性能正常 跌落试验1M高空按照互相垂直的轴方向自由跌落3次电气机械性能正常 ProjectTestconditionTestresults Storage environment Testtemperature,humidity,pressurewithout statedconditionasfollwings:1.Temperature:-30°C～ +80°C;2.Relativehumidity:45%-85%;3,Pressure: 86kpa-106kpa Electricaland mechanical performancenormal Highandlow temperaturetest Having5timescyclebetween-40°Cto70°C,Thenincommon condition1-2hourstestexteriorquality. Measurement satisfiedwith electricaland mechanical performancenormal. Resistance constanthotand humidtest Relativehumidity:95±3%,Testtemperature:40°C,last2 hours,putitafter5mintesttheelectricalfunction.Test productsduringcommoncondition1-2hours,Thentest exteriorquality. Measurement satisfiedwith electricaland mechanical performancenormal. Vibrationtest VibrateFrequency:10-55HZ; Distance:0.35mm;Acceleration:50.0m/s;Sweepfrequency cycle:30times Electricaland mechanical performancenormal FalltestFrom1mheightfalldown3timesfreely(verticaldirection) Electricaland mechanical performancenormal

V1.0 Report No.: DACE260401004RF001 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 1 of 73 RF TEST REPORT For Zhongshan Enbo Optoelectronics Co.,Ltd Product Name: Halo Pro Test Model(s): Halo Pro Re port Reference No. : DACE260401004RF001 FCC ID : 2BVPV- HALOPRO Ap plicant’s Name : Zhongshan Enbo Optoelectronics Co.,Ltd Address : 304 Room third floor, 4 Building, No.1 Shatan South Road, Tanzhou Town, Zhongshan City, Guangdong Province, China Te sting Laboratory : Shenzhen DACE Testing Technology Co., Ltd. Address : 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Test Specification Standard : 47 CFR Part 15.247 Dat e of Receipt : April 1, 2026 Date of Test : April 1, 2026 to April 13, 2026 Date of Issue : April 15, 2026 Result : Pass Not e: This report shall not be reproduced except in full, without the written approval of Shenzhen DACE Testing Technology Co., Ltd. This document may be altered or revised by Shenzhen DACE Testing Technology Co., Ltd. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample V1.0 Report No.: DACE260401004RF001 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 2 of 73 Apply for company information Applicant’s Name : Zhongshan Enbo Optoelectronics Co.,Ltd Address : 304 Room third floor, 4 Building, No.1 Shatan South Road, Tanzhou Town, Zhongshan City, Guangdong Province, China Product Name : Halo Pro Test Model(s) : Halo Pro Test Specification Standard(s) : 47 CFR Part 15.247 NOTE1: The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. Compiled by: Supervised by: Approved by: Lucy Mo / Test Engineer Ben Tang / Project Engineer Tom Chen / Manager April 15, 2026 April 15, 2026 April 15, 2026 V1.0 Report No.: DACE260401004RF001 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 3 of 73 Revision History Of Report Version Description REPORT No. Issue Date V1.0 Original DACE260401004RF001 April 15, 2026 V1.0 Report No.: DACE260401004RF001 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 4 of 73 CONTENTS 1 TEST SUMMARY ........................................................................................................................................... 6 1.1 TEST STANDARDS .................................................................................................................................. 6 1.2 SUMMARY OF TEST RESULT .................................................................................................................... 6 2 GENERAL INFORMATION ............................................................................................................................ 7 2.1 CLIENT INFORMATION ............................................................................................................................. 7 2.2 DESCRIPTION OF DEVICE (EUT) .............................................................................................................. 7 2.3 DESCRIPTION OF TEST MODES ................................................................................................................ 7 2.4 DESCRIPTION OF SUPPORT UNITS ........................................................................................................... 7 2.5 OPERATION FREQUENCY EACH OF CHANNEL ............................................................................................ 8 2.6 EQUIPMENTS USED DURING THE TEST .................................................................................................... 9 2.7 STATEMENT OF THE MEASUREMENT UNCERTAINTY ................................................................................ 11 3 EVALUATION RESULTS (E VA L U AT I O N ) ................................................................................................... 12 3.1 ANTENNA REQUIREMENT ....................................................................................................................... 12 3.1.1 Conclusion: ............................................................................................................................. 12 4 RADIO SPECTRUM MATTER TEST RESULTS (RF) ................................................................................. 13 4.1 CONDUCTED EM I S S I O N AT AC POWER LINE ........................................................................................... 13 4.1.1 E.U.T. Operation: .................................................................................................................... 13 4.1.2 Test Setup Diagram: ............................................................................................................... 13 4.1.3 Test Data: ............................................................................................................................... 14 4.2 6DB BANDWIDTH ............................................................................…

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V1.0 Report No.: DACE260401004RF002 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 1 of 79 RF TEST REPORT For Zhongshan Enbo Optoelectronics Co.,Ltd Product Name: Halo Pro Test Model(s): Halo Pro Re port Reference No. : DACE260401004RF002 FCC ID : 2BVPV- HALOPRO Ap plicant’s Name : Zhongshan Enbo Optoelectronics Co.,Ltd Address : 304 Room third floor, 4 Building, No.1 Shatan South Road, Tanzhou Town, Zhongshan City, Guangdong Province, China Te sting Laboratory : Shenzhen DACE Testing Technology Co., Ltd. Address : 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Test Specification Standard : 47 CFR Part 15.247 Dat e of Receipt : April 1, 2026 Date of Test : April 1, 2026 to April 13, 2026 Date of Issue : April 15, 2026 Result : Pass Not e: This report shall not be reproduced except in full, without the written approval of Shenzhen DACE Testing Technology Co., Ltd. This document may be altered or revised by Shenzhen DACE Testing Technology Co., Ltd. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample V1.0 Report No.: DACE260401004RF002 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 2 of 79 Apply for company information Applicant’s Name : Zhongshan Enbo Optoelectronics Co.,Ltd Address : 304 Room third floor, 4 Building, No.1 Shatan South Road, Tanzhou Town, Zhongshan City, Guangdong Province, China Product Name : Halo Pro Test Model(s) : Halo Pro Test Specification Standard(s) : 47 CFR Part 15.247 NOTE1: The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. Compiled by: Supervised by: Approved by: Lucy Mo / Test Engineer Ben Tang / Project Engineer Tom Chen / Manager April 15, 2026 April 15, 2026 April 15, 2026 V1.0 Report No.: DACE260401004RF002 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 3 of 79 Revision History Of Report Version Description REPORT No. Issue Date V1.0 Original DACE260401004RF002 April 15, 2026 V1.0 Report No.: DACE260401004RF002 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 4 of 79 CONTENTS 1 TEST SUMMARY ........................................................................................................................................... 6 1.1 TEST STANDARDS .................................................................................................................................. 6 1.2 SUMMARY OF TEST RESULT .................................................................................................................... 6 2 GENERAL INFORMATION ............................................................................................................................ 7 2.1 CLIENT INFORMATION ............................................................................................................................. 7 2.2 DESCRIPTION OF DEVICE (EUT) .............................................................................................................. 7 2.3 DESCRIPTION OF TEST MODES ................................................................................................................ 7 2.4 DESCRIPTION OF SUPPORT UNITS ........................................................................................................... 7 2.5 OPERATION FREQUENCY EACH OF CHANNEL ............................................................................................ 8 2.6 EQUIPMENTS USED DURING THE TEST .................................................................................................... 9 2.7 STATEMENT OF THE MEASUREMENT UNCERTAINTY ................................................................................ 11 3 EVALUATION RESULTS (EVALUAT I O N ) ................................................................................................... 12 3.1 ANTENNA REQUIREMENT ....................................................................................................................... 12 3.1.1 Conclusion: ............................................................................................................................. 12 4 RADIO SPECTRUM MATTER TEST RESULTS (RF) ................................................................................. 13 4.1 CONDUCTED EM I S S I O N AT AC POWER LINE ........................................................................................... 13 4.1.1 E.U.T. Operation: .................................................................................................................... 13 4.1.2 Test Setup Diagram: ............................................................................................................... 13 4.1.3 Test Data: ............................................................................................................................... 14 4.2 6DB BANDWIDTH ................................................................................…

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Setup Appendix Model: Halo Pro FCC ID: 2BVPV-HALOPRO