2ATLT-ITAG16ITAG16

shenzhen dibet technology co.,LTD Room 101, 1st Floor, Block D, No. 1 Chuangjin, Block 28, Dalang Community, Xin'an Street, Bao'an District, Shenzhen, (Guangdong ) U.S. Agent Letter of Attestation 7435 Oakland Mills Road, Columbia, MD 21046, USA To: Federal Communications Commission Date: Sep. 7, 26 Ref: Attestation Statement –Part2.911(d)(7) filing FCC ID:2ATLT-ITAG16 [shenzhen dibet technology 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 ourresponsibility 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: shenzhen dibet technology co.,LTD Address: Room 101, 1st Floor, Block D, No. 1 Chuangjin, Block 28, Dalang Community, Xin'an Street, Bao'an District, Shenzhen, Guangdong FRN: 0028550374 Signature: Contact Person: jiang jianju Email: [email protected] Tel: 0755-86097629

(shenzhen dibet technology co.,LTD) (September 7, 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: 2ATLT-ITAG16) [shenzhen dibet technology 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) jiang jianju (shenzhen dibet technology co.,LTD) (September 7, 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: 2ATLT-ITAG16) [shenzhen dibet technology 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) jiang jianju

shenzhen dibet technology co.,LTD Model Difference Data: September 11, 2026 Product description: ITAG16 Model name: ITAG16, iTag3, iTag4, iTag9, iTag7, iTag8, iTagPower, iTag5, iTag6, iTag1, iTag6, iTag10, iTag10L, iTagPower 1, iTagPower 2, iTag11, iTag12, iTag13, iTag 2, iTag R1, iTag T1, iTag CH1, iTag P1, iTag P2, iTag 14, iTag 15, iTag 16, iTag 16L, iTag CP1, iTag SC1, iTag W1, iTag 17, iTag 18, iTag 19, iTag 20, iTag 21, iTag 22, iTag 23, iTag 24, iTag 25 Trade Name: N/A FCC ID: 2ATLT-ITAG16 All the model are the same circuit and RF module, only the model name are different. Regards Sincerely Client’s signature: Client’s name / title: jiang jianju (Manager) Contact information / address: Room 101, 1st Floor, Block D, No. 1 Chuangjin, Block 28, Dalang Community, Xin'an Street, Bao'an District, Shenzhen, Guangdong

shenzhen dibet technology co.,LTD (September 7, 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: jiang jianju Title: Manager

shenzhen dibet technology co.,LTD (September 10, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (ITAG16 / ITAG16, iTag3, iTag4, iTag9, iTag7, iTag8, iTagPower, iTag5, iTag6, iTag1, iTag6, iTag10, iTag10L, iTagPower 1, iTagPower 2, iTag11, iTag12, iTag13, iTag 2, iTag R1, iTag T1, iTag CH1, iTag P1, iTag P2, iTag 14, iTag 15, iTag 16, iTag 16L, iTag CP1, iTag SC1, iTag W1, iTag 17, iTag 18, iTag 19, iTag 20, iTag 21, iTag 22, iTag 23, iTag 24, iTag 25) 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: jiang jianju Title: Manager

External Appendix FCC ID: 2ATLT-ITAG16 Model: ITAG16

Label Location: ITAG16 FCC ID: 2ATLT-ITAG16 Model: ITAG16

shenzhen dibet technology co.,LTD FCC ID: 2ATLT-ITAG16 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 3 2.00 4±1 5.00 3.16 <5 0.98020 3.00 YES 2.44 3.19 2.08 4±1 5.00 3.16 <5 0.98793 3.00 YES 2.480 3.94 2.48 4±1 5.00 3.16 <5 0.99599 3.00 YES 2.402 3.46 2.22 4±1 5.00 3.16 <5 0.98020 3.00 YES 2.44 3.74 2.37 4±1 5.00 3.16 <5 0.98793 3.00 YES 2.480 4.29 2.69 5±1 6.00 3.98 <5 1.25388 3.00 YES GFSK(1M Hz) GFSK(2M Hz) Conclusion: For the max result: 1.25388≤ FCC Limit 3.0 for 1g SAR.

1 Antenna specification 1、Antenna introduction The Bluetooth module antenna is directly used on the PCB. Manufacturer：shenzhen dibet technology co.,LTD Address：Room 101, 1st Floor, Block D, No. 1 Chuangjin, Block 28, Dalang Community, Xin'an Street, Bao'an District, Shenzhen, Guangdong 2、Antenna shape 2 3、Antenna parameter The Bluetooth antenna operates at 2402-2480 MHz and generates resonance in this band. The table below shows the main parameters of the antenna. Frequency(MHz) 2400 ~ 2500 MHz VSWR ≤ 1.95 Impedance 50 Ohm Nominal Return Loss -15 dB Max Radiation Omni-directional Gain (Peak) 0.77dBi Polarization Linear, Vertical Admitted Power 1MW Connector Tin 3 4、Test Equipment List 5、Test Setup 4 6、Antenna gain report Spectrum Detector: PK Test Date : Feb 18, 2022 Test By: Mark Temperature : 25°C Test Result: PASS Humidity : 52 % Modulation: GFSK Frequency Separation Read Separation Limit (MHz) E Total. dB(dB) Gain.dBi (Peak) 2400MHz 0.04 -0.47 2410MHz 0.08 -0.42 2420MHz 0.26 -0.20 2430MHz 0.19 -0.15 2440MHz 0.26 0.28 2450MHz 0.07 0.77 2460MHz 0.36 0.51 2470MHz 0.55 -0.38 2480MHz 0.64 -0.93 2490MHz 1.05 -1.52 2500MHz 1.08 -1.68 Direction map： PHI 0° 5 PHI 90° THETA 90° 6

V1.0 Report No.: DACE260902007RF001 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 69 RF TEST REPORT For shenzhen dibet technology co.,LTD Product Name: ITAG16 Test Model(s): ITAG16 Report Reference No. : DACE260902007RF001 FCC ID : 2ATLT-ITAG16 Applicant’s Name : shenzhen dibet technology co.,LTD Address : Room 101, 1st Floor, Block D, No. 1 Chuangjin, Block 28, Dalang Community, Xin'an Street, Bao'an District, Shenzhen, Guangdong Testing 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 Date of Receipt : September 1, 2026 Date of Test : September 1, 2026 to September 3, 2026 Date of Issue : September 3, 2026 Result : Pass Note: 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.: DACE260902007RF001 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 69 Apply for company information Applicant’s Name : shenzhen dibet technology co.,LTD Address : Room 101, 1st Floor, Block D, No. 1 Chuangjin, Block 28, Dalang Community, Xin'an Street, Bao'an District, Shenzhen, Guangdong Product Name : ITAG16 Test Model(s) : ITAG16 Series Model(s) : iTag3, iTag4, iTag9, iTag7, iTag8, iTagPower, iTag5, iTag6, iTag1, iTag6, iTag10, iTag10L, iTagPower 1, iTagPower 2, iTag11, iTag12, iTag13, iTag 2, iTag R1, iTag T1, iTag CH1, iTag P1, iTag P2, iTag 14, iTag 15, iTag 16, iTag 16L, iTag CP1, iTag SC1, iTag W1, iTag 17, iTag 18, iTag 19, iTag 20, iTag 21, iTag 22, iTag 23, iTag 24, iTag 25 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 Arron Liu / Project Engineer Tom Chen / Manager September 3, 2026 September 3, 2026 September 3, 2026 V1.0 Report No.: DACE260902007RF001 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 69 Revision History Of Report Version Description REPORT No. Issue Date V1.0 Original DACE260902007RF001 September 3, 2026 V1.0 Report No.: DACE260902007RF001 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 69 CONTENTS 1 TEST SUMMARY ........................................................................................................................................... 6 1.1 TEST STANDARDS .................................................................................................................................. 6 1.2 SUMM ARY OF TEST RESULT .................................................................................................................... 6 2 GENERAL INFORMATION ............................................................................................................................ 8 2.1 CLIENT INFORMATION ............................................................................................................................. 8 2.2 DESCRIPTION OF DEVICE (EUT) .............................................................................................................. 8 2.3 DESCRIPTION OF TEST MODES ................................................................................................................ 8 2.4 DESCRIPTION OF SUPPORT UNITS ........................................................................................................... 8 2.5 OPERATION FREQUENCY EACH OF CHANNEL ............................................................................................ 9 2.6 EQUIPMENTS USED DURING THE TEST .................................................................................................. 10 2.7 STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................... 12 3 EVALUATION RESULTS (EVALUATION) ................................................................................................... 13 3.1 ANTENNA REQUIREMENT ....................................................................................................................... 13 3.1.1 Conclusion: ............................................................................................................................. 13 4 RADIO SPECTRUM MATTER TEST RESULTS (RF) ................................................................................. 14 4.1 6DB BANDWIDTH .................................................................................................................................. 14 4.1.1 E.U.T. Operation: .................................................................................................................... 14…

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Setup Appendix FCC ID: 2ATLT-ITAG16 Model: ITAG16