2ADKA-ERGOWEAREErgoAI Wearable Device

Kingfar International Inc. Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Apr. 16, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2ADKA-ERGOWEARE Kingfar International Inc. (“the applicant”) 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: Qichao Zhao Title: General Manager Address: Room 2001T2, Building 24, No. 8 Dongbeiwang West Road, HaidianDistrict, Beijing,100086, China Email: [email protected]

Kingfar International Inc. 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Apr. 16, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: 2ADKA-ERGOWEARE Product Name: ErgoAI Wearable Device 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: Qichao Zhao Title: General Manager Address: Room 2001T2, Building 24, No. 8 Dongbeiwang West Road, HaidianDistrict, Beijing,100086, China Email: [email protected] Kingfar International Inc. 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) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

Kingfar International Inc. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [April 17, 2026] U.S. Agent Designation [Kingfar International Inc.] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought FCC ID: 2ADKA-ERGOWEARE Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [Kingfar International Inc.]. [Kingfar International Inc.] with the FRN [0024068116] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature Signature [Qichao Zhao] [Huiying Fan] [General Manager] [Director] [Kingfar International Inc.] [GLOCERTS TECHNOLOGY INC]

Kingfar International Inc. (April 16, 2026) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID:2ADKA-ERGOWEARE 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. Pursuant to DA 04-1705, the applicant also requests temporary confidential treatment of the exhibits outlined below for a period of (up to 180) days from the date of equipment authorization and prior to marketing in the United States to prevent the premature release of any sensitive information. Applicant is aware of their responsibility to notify DERYCOM in the event information regarding the product or the product is made available to the public before the requested period has expired.  User Manual  Internal Photos Sincerely, Applicant Signature Printed Name: Qichao Zhao Title: General Manager Address: Room 2001T2, Building 24, No. 8 Dongbeiwang West Road, HaidianDistrict, Beijing,100086, China Email: [email protected]

Kingfar International Inc. April 16, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2ADKA-ERGOWEARE I, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (Shenzhen CTB Testing Technology 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 Kingfar International Inc. 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, Applicant Signature Printed Name: Qichao Zhao Title: General Manager Address: Room 2001T2, Building 24, No. 8 Dongbeiwang West Road, HaidianDistrict, Beijing,100086, China Email: [email protected]

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: ErgoLAB EarClip External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location: FCC ID: 2ADKA-ERGOWEARE Model No.: ErgoLAB EarClip

Shenzhen CTB Testing Co., Ltd. FCC ID: 2ADKA-ERGOWEARE 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 1.397 1.38 1±1 2.00 1.58 <5 0.49127 3.00 YES 2.44 1.539 1.43 1±1 2.00 1.58 <5 0.49514 3.00 YES 2.480 0.928 1.24 0±1 1.00 1.26 <5 0.39651 3.00 YES GFSK Conclusion: For the max result : 0.49514≤ FCC Limit 3.0 for 1g SAR.

October 2011 Page 1 1999-2011 © FRACTUS, S.A. Fractus Compact Reach Xtend™ Bluetooth ® , 802.11b/g WLAN Chip Antenna Antenna Part Number: FR05-S1-N-0-102 October 2011 Page 2 1999-2011 © FRACTUS, S.A. TABLE OF CONTENTS NOTES ______________________________________________________________________ 2 ANTENNA DESCRIPTION ________________________________________________________ 3 QUICK REFERENCE GUIDE _______________________________________________________ 3 ELECTRICAL PERFORMANCE _____________________________________________________ 4 FRACTUS EVALUATION BOARD __________________________________________________ 4 CAPABILITIES AND MEASUREMENT SYSTEMS ______________________________________ 6 MECHANICAL CHARACTERISTICS _________________________________________________ 7 DIMENSIONS, TOLERANCES & MATERIALS ________________________________________ 7 SPECIFICATIONS FOR INK _____________________________________________________ 8 ASSEMBLY PROCESS __________________________________________________________ 9 ANTENNA FOOTPRINT _______________________________________________________ 11 PACKAGING _______________________________________________________________ 12 Fractus is an ISO 9001:2008 certified company All our antennas are lead-free and RoHS compliant NOTES This product is protected by at least the following patents PAT. US 7,148,850, US 7,202,822 and other domestic and international patents pending. Any update on new patents linked to this product will appear in http://www.fractus.com/index.php/fractus/patents All information contained within this document is property of Fractus and is subject to change without prior notice. Information is provided “as is” and without warranties. It is prohibited to copy or reproduce this information without prior approval. October 2011 Page 3 1999-2011 © FRACTUS, S.A. ANTENNA DESCRIPTION Fractus  Compact Reach Xtend TM chip antenna is engineered specifically for Bluetooth ® , WLAN 802.11 b/g and other wireless devices operating at the ISM 2.4 GHz band. Compact Reach Xtend combines small form factor size and high performance to improve the functionality of your wireless devices. The Compact Reach Xtend is a low-cost antenna solution that combines small form factor and high performance with integration flexibility making it ideal for small consumer electronics devices such as wireless headsets and USB dongles. TOP BOTTOM APPLICATIONS Wireless Headsets WLAN 802.11 b/g USB-dongles Bluetooth USB and serial Dongles Compact Flash (CF) and Secure Digital (SD) cards Cellular handsets Digital Cameras BENEFITS Low cost High efficiency Small form factor QUICK REFERENCE GUIDE Technical Features Frequency range 2.4 GHz - 2.5 GHz Average Efficiency 72 % Radiation Pattern Omnidirectional Peak Gain 1.7 dBi VSWR < 2:1 Polarization Linear Weight (aprox) 0.1 g Temperature -40ºC to + 85ºC Impedance 50 Dimensions (L x W x H) 7 mm x 3 mm x 2 mm Table 1 -Technical Features. Measures from the evaluation board (47 mm x 23 mm x 1 mm PCB) Please contact [email protected] if you require additional information on antenna integration or optimisation on your PCB. FRACTUS S.A. www.fractus.com Tel: +34 935442690 Fax: +34 935442691 3 mm 7 mm 2 mm October 2011 Page 4 1999-2011 © FRACTUS, S.A. ELECTRICAL PERFORMANCE FRACTUS EVALUATION BOARD The Fractus configuration used in testing the Compact Reach Xtend chip antenna is displayed in Figure 1. Figure 1 – Compact Reach Xtend Evaluation Board VSWR and Efficiency VSWR (Voltage Standing Wave Ratio) and Efficiency versus Frequency (GHz) Measure mm A 41.0 B 23.0 C 47.0 D 8.0 E 26.0 Material: the evaluation board is built on FR4 substrate of 1.0 mm of thickness. Note: refer to the Antenna Footprint section on page 10 of this User Manual for additional information about the clearance area and antenna footprint. SMA Connector 50 Ohms feeding line Compact Reach Xtend Antenna Ground Plane (Grey Colour) A B E C D Antenna Clearance Tolerance: ±0.2 mm October 2011 Page 5 1999-2011 © FRACTUS, S.A. Radiation Pattern, Gain and Efficiency 0 30330 60300 90270 120240 150210 180 -30 -25 -20 -15 -10 -5 0 5 Gain (dB): Theta=90º cut Orientation Azimuth Cut θ = 90º Plane XY 0 30330 60300 90270 120240 150210 180 -30 -25 -20 -15 -10 -5 0 5 Gain (dB): Phi=0º cut 0 30330 60300 90270 120240 150210 180 -30 -25 -20 -15 -10 -5 0 5 Gain (dB): Phi=90º cut Elevation Cut  = 0 Plane XZ Elevation Cut  = 90 Plane YZ Radiation patterns at 2.45 GHz Gain Peak Gain 1.7 dBi Average Gain across the band 1.32 dBi Gain Range across the band (min, max) 0.71 dB , 1.7 dB Efficiency Peak Efficiency 75 % Average Efficiency across the band 72 % Efficiency Range across the band 69 % - 75 % Table 2 – Antenna Gain and Efficiency within the 2.4-2.5 GHz band. Measures made in the evaluation board and in the Satimo STARGATE 32. October 2011 Page 6 1999-2011 © FRACTUS, S.A. CAPABILITIES AND MEASUREMENT SYSTEMS Fractus specialises in designing and manufacturing optimised antennas for wireless applications and providing our clients with RF expertise. We offer turn-key antenna products and antenna integration support to minimise your time requirement and maximize your return on investment during your product development efforts. We also provide our clients with the opportunity to leverage our in-house testing and measurement facilities to obtain accurate results quickly and efficiently. 22.533.544.555.56 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 Re turn Lo s s (dB) Fre que nc y (GHz) Le ft Ante nna Rig ht Ante nna Is o latio n VSWR=2 22.533.544.555.56 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 Re turn Lo s s (dB) Fre que nc y (GHz) Le ft Ante nna Rig ht Ante nna Is o latio n VSWR=2 VSWR & S Parameters 0 30330 60300 90270 120240 150210 180 -30 -25 -20 -15 -10 -5 0 5 f=5350MHz 0 30330 60300 90270 120240 150210 180 -30 -25 -20 -15 -10 -5 0 5 f=5350MHz Radiation Pattern & Efficiency SATIMO’s STARGATE 32 Anechoic and semi-anechoic chambers and full equipped in-house lab Agilent E5071B October 2011 Page 7 1999-2011 © FRA…

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Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 35 TEST REPORT Compiled by: Reviewed by: Approved by: Kai Chen Martin Feng Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Test item description: ErgoAI Wearable Device FCC ID: 2ADKA-ERGOWEARE Trademark(s): KINGFAR津发科技 Model/Type reference: ErgoLAB EarClip Applicant’s name: Kingfar International Inc. Address: Room 2001T2, Building 24, No. 8 Dongbeiwang West Road, HaidianDistrict, Beijing,100086, China Manufacturer: Kingfar International Inc. Address: Room 2001T2, Building 24, No. 8 Dongbeiwang West Road, Haidian District, Beijing, 100086, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: May. 06, 2025 Sample tested Date: May. 06, 2025 to Aug. 11, 2025 Issue Date: Aug. 11, 2025 Report No.: CTB25050607404RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB25050607404RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 35 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................ 3 2. TEST SUMMARY ........................................................................................................................... 4 3. MEASUREMENT UNCERTAINTY ................................................................................................. 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................ 6 4.1 Product Information .......................................................................................................................... 6 4.2 Test Setup Configuration .................................................................................................................. 6 4.3 Support Equipment........................................................................................................................... 6 4.4 Channel List ..................................................................................................................................... 7 4.5 Test Mode ........................................................................................................................................ 7 4.6 Test Environment ............................................................................................................................. 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................................................... 8 5.1 Test Facility ...................................................................................................................................... 8 5.2 Test Instrument Used ....................................................................................................................... 8 6. AC POWER LINE CONDUCTED EMISSION ................................................................................ 11 6.1 Block Diagram Of Test Setup ......................................................................................................... 11 6.2 Limit ................................................................................................................................................ 11 6.3 Test procedure ............................................................................................................................... 11 6.4 Test Result ..................................................................................................................................... 13 7. RADIATED SPURIOUS EMISSION ............................................................................................. 15 7.1 Block Diagram Of Test Setup ......................................................................................................... 15 7.2 Limit ................................................................................................................................................ 15 7.3 Test procedure ............................................................................................................................... 15 7.4 Test Result ..................................................................................................................................... 17 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ............................................... 24 8.1 Block Diagram Of Test Setup ......................................................................................................... 24 8.2 Limit ................................................................................................................................................ 24 8.3 Test procedure ............................................................................................................................... 24 8. 4 Test Result ..................................................................................................................................... 25 9. COUDUCTED OUTPUT POWER ..........................................................................................…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: ErgoLAB EarClip Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions