2BWWX-NB-01XINGZHE Mini

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company name: HOPEK CORPORATION INC FRN: 0034562900 Contact Name: Yangyang Xu Address: 16755 Coyote Bush Dr Unit 84, San Diego, CA 92127 United States Telephone No: 561-875-9826 Email: [email protected] Applicant: Company name: Skyward Exploration Technologies Co. Ltd. Grantee Code: 2BWWX FCC ID: 2BWWX-NB-01 FRN: 0038616868 Contact Name: Yawei Wang Address: Room 1009, Satellite Tower, Haidian District, Beijing, 102627, China Telephone No: 15589582351 Fax No: / Email: [email protected] Skyward Exploration Technologies Co. Ltd. certifies that, as of the date of this filing of the application with the TCB, [HOPEK CORPORATION INC] is our designated US agent for service of process for the above referenced FCC ID. Skyward Exploration Technologies Co. Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [HOPEK CORPORATION INC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2026-07-10 Applicant’s Name: Yawei Wang US Agent’s Name: Yangyang Xu Title: manager Title: manager Signature: Signature:

Attestation Statement. Old Code: C5266091 24 New Code: 00015544 Ed.3 Change reason: FRN is added to the Applicant information section. 1/1 TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Skyward Exploration Technologies Co. Ltd. Grantee Code: 2BWWX FCC ID: 2BWWX-NB-01 FRN: 0038616868 Contact Name: Yawei Wang Address: Room 1009, Satellite Tower, Haidian District, Beijing, 102627, China Telephone No: 15589582351 Fax No: / Email: [email protected] i. [Skyward Exploration Technologies 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. The applicant must sign this certification. ii. [Skyward Exploration Technologies Co. Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [ is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [Skyward Exploration Technologies 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 . Date: 2026/07/10 Applicant’s Name: Skyward Exploration Technologies Co. Ltd. Title: manager Signature The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Skyward Exploration Technologies Co. Ltd. Code 00018768 Ed. 1 Item 1. The device is able to install software/program installation? ☐ Yes, go to Item 2. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybersecurity or anti-virus software. Device XINGZHE Mini Company name Skyward Exploration Technologies Co. Ltd. Grantee code 2BWWX FCC ID 2BWWX-NB-01 FRN 0038616868 Contact name Yawei Wang Address Room 1009, Satellite Tower, Haidian District, Beijing, 102627, China Telephone number 15589582351 E-mail [email protected] Chipset/module information FR8003D Operating System (if applicable) / Storage Capacity (hard drive or other permanent memory storage, if applicable) / 2 Item 2. Technical Requirements for Kaspersky Cybersecurity Software: # General Requirements (For all Devices) Yes / No or N/A Comments 1 Internet connection for activation and updates (For all Operating Systems) NO # General Requirements (For Windows Devices) Yes / No or N/A Comments 1 Storage: 1500 MB free space on the hard drive N/A 2 Operating System: Microsoft Windows 8, 8.1, 10 & 11 Home / Pro / Enterprise Microsoft Windows 7 Starter / Home Basic & Premium / Professional / Ultimate SP1 or higher N/A 3 Processor: 1 GHz or higher (x86 or x64) N/A 4 Memory (RAM)1 GB (32-bit) or 2 GB (64-bit) N/A 5 Screen Resolution: Minimum resolution of 1024 x 768 N/A # General Requirements (For macOS devices) Yes / No or N/A Comments 1 Operating System macOS® 13 – 14 N/A 2 Memory (RAM)4 GB N/A 3 Storage: 3455 MB free space on the hard drive N/A # General Requirements (For Android Devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A / 2 Operating System: Android™ 10 – 14 N/A / 3 Screen Resolution: Minimum resolution of 320 x 480 N/A / # General Requirements (for iOS devices) Yes / No or N/A Comments 3 1 Storage: 150 MB free space N/A 2 Operating System: iOS® 17 N/A # General Requirements (For Linux system) Yes / No or N/A Comments 1 Hard drive: 1 GB of free space N/A 2 CPU: Intel Pentium 1 GHz or higher 3 RAM: 1 GB 4 Minimum software requirements: AlmaLinux OS 8 or later; AlterOS 7.5 or later; Astra Linux Common Edition 2.12 or later; CentOS 6.7 or later; Debian GNU/Linux 10.0 or later; EulerOS 2.0 or later; Oracle Linux 7.3 or later ; Red Hat Enterprise Linux 6.7 or later ; Rocky Linux 8.5 or later ; SUSE Linux Enterprise Server 12.5 or later; Ubuntu 12.04 or later ; Uncom OS Home / Business / Education / Enterprise 2.2 or later; ALT Linux Workstaton / Workstation K / Server / Education 8 or later; ROSA Linux Workstation / Server 12 or later ; RED OS 7.3 and later ; After reviewed the technical requirements, is the device capable of supporting the installation of Kaspersky software? 4 ☐ Yes, go to Item 3. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky software Item 3. Connectivity Capabilities: # Physical Interface Purpose Justification 1 1 2 # Wireless Interface Purpose Justification 1 1 After the review of this items, the device: ☐ Cannot support installation of any cybersecurity or anti-virus software on the covered list. ☒ Potentially can operate with any cybersecurity or anti-virus software on the covered list – additional third- party proof is provided to demonstrate compliance with requirements as of 2.911(d)5(i),(ii) – “Proof of Compliance with Covered List Software Requirements” of this document applies Signature: Name: Yawei Wang Date: 2026.7.10 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications.

TCBCALLpágina1 FileFCCID:2BWWX-NB-01 PleaseuploadanexhibitthatexplainshowdoestheTCBverifythenewagentinformation: 1-IstheaddressoftheagentavalidphysicalUSmailingaddress(notaUSpostofficebox,notavirtualmailbox,notP.O.Boxes,notavacantlot,notapublicbuilding, etc.) ○Wehavecheckediftheaddressexistsinarealandpotentialbuilding(Googlemaps)+officialUSregister,afterthisverificationandtheevidencebelowwecan guaranteethefollowing: notaUSpostofficebox notavirtualmailbox notP.O.Boxes notavacantlot notapublicbuilding(note) ►WecheckedtheFCCFRNSearchbasedontheinformationprovidedbythegrantee. Ontheofficialregisterfrom:https://www.coloradosos.gov/biz/BusinessEntityCriteriaExt.do TCBCALLpágina2 TCBCALLpágina3 TCBCALLpágina4 TCBCALLpágina5 TCBCALLpágina6 TCBCALLpágina7 ►CONCLUSIONbyTCB:TheASOPdefinedandprovidedbygranteeisVALIDandconfirmed.Thereforetheexhibit"C5266091_X23_Ed1_US_Agent_Letter" includedinthefileisok. 2-IstheagentphysicallylocatedatthatvalidUSaddresssuchthattheagentcanbelegallyservedatthataddress? Yes,checkabove 3-Hasthelistedagentclearlyagreedinwritingtoserveastheagentforthegranteeatthataddress? Yes,itisincludedintheexhibit"C5266091_X23_Ed1_US_Agent_Letter" >

C5266091_X10_Ed.2 1/1 Skyward Exploration Technologies Co. Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026.7 10 Subject: Request for Confidentiality FCC ID: 2BWWX-NB-01 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. 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 NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. 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. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of __180____ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Yawei Wang Title: manager

C5266091_X8_Ed.1 1/1 Letter of Authorization Skyward Exploration Technologies Co. Ltd. Company: Skyward Exploration Technologies Co. Ltd. Address: Room 1009, Satellite Tower, Haidian District, Beijing, 102627, China Product Name: XINGZHE Mini Model Number: TXTS-NB-01 FCC Identifier: 2BWWX-NB-01 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Yawei Wang Date: 2026.07.10 Title: manager Signature of applicant:

30mm*20mm

FCC ID: 2BWWX-NB-01 RF Exposure Evaluation TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01 and 47CRF part 2.1093. 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. 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: (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). FCC ID: 2BWWX-NB-01 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 centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as a single source (separation is not required). This exemption may not be used in conjunction with other exemption criteria other than those is paragraph (b)(3)(i)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(i)(A). (B) in the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation. Where: a = number of fixed, mobile, or portable RF sources claiming exemption using paragraph (b)(3)(i)(B) of Part 1.1307 for Pth, including existing exempt transmitters and those being added. b = number of fixed, mobile, or portable RF sources claiming exemption using paragraph (b)(3)(i)(C) of Part 1.1307 for Threshold ERP, including existing exempt transmitters and those being added. c = number of existing fixed, mobile, or portable RF sources with known evaluation for the specified minimum distance including existing evaluated transmitters. Pi = the available maximum time-averaged power or the ERP, whichever is greater, for fixed, mobile, or portable RF source i at a distance between 0.5 cm and 40 cm (inclusive). Pth,i = the exemption threshold power (Pth) according to paragraph (b)(3)(i)(B) of this section for fixed, mobile, or portable RF source i. FCC ID: 2BWWX-NB-01 ERPj = the ERP of fixed, mobile, or portable RF source j. ERPth,j = exemption threshold ERP for fixed, mobile, or portable RF source j, at a distance of at least λ/2π according to the applicable formula of paragraph (b)(3)(i)(C) of Part 1.1307. Evaluatedk = the maximum reported SAR or MPE of fixed, mobile, or portable RF source k either in the device or at the transmitter site from an existing evaluation at the location of exposure. Exposure Limitk = either the general population/uncontrolled maximum permissible exposure (MPE) or specific absorption rate (SAR) limit for each fixed, mobile, or portable RF source k, as applicable from § 1.1310. Test Result of RF Exposure Evaluation Protocol Fre. (GHz) Output power (dBm) Tune-up power (dBm) Max tune-up power (dBm) ANT Gain ( dBi) Max EIRP (dBm) Max ERP (dBm) Max ERP (mW) Separati distance (cm) Limit (mW) Result BLE 2.440 1.32 1±1 2 3.74 5.74 3.59 2.29 0.5 2.75 PASS Note: 1. This device is portable device. 2. ERP= EIRP(dBm)-2.15 3. The source of the evaluation data results is based on the test report ET-26062820E 4. The Maxinum power is less than the limit, complies with the exemption requirements.

Report No.: ET-26062820E This test report is valid for the tested samples only. It cannot be reproduced except in full without prior written consent of Shenzhen ETR Standard Technology Co., Ltd. TEST REPORT Applicant: Skyward Exploration Technologies Co. Ltd. Address of Applicant: Room 1009, Satellite Tower, Haidian District, Beijing, 102627, China Manufacturer: Skyward Exploration Technologies Co. Ltd. Address of Manufacturer: Room 1009, Satellite Tower, Haidian District, Beijing, 102627, China Product Name: XINGZHE Mini Model No.: TXTS-NB-01 Trade Mark: FCC ID: 2BWWX-NB-01 Applicable standards: CFR Title 47 Part 15.247 Date of Test: Jun.18, 2026-Jul.01, 2026 Date of report issued: Jul.02, 2026 Remark: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver Prepared By Shenzhen ETR Standard Technology Co., Ltd. Address: No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Compiled by: Reviewed by: Approved by: Project Engineer Project Manager Authorized Signature - Page 2 of 39 - Report No.: ET-26062820E Tel:(86-0755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Report Revision History Report No. Description Issue Date ET-26062820E Original Jul.02, 2026 - Page 3 of 39 - Report No.: ET-26062820E Tel:(86-0755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Contents Page 1. TEST SUMMARY ......................................................................................................................................4 2. GENERAL INFORMATION .......................................................................................................................5 2.1 GENERAL DESCRIPTION OF EUT .................................................................................................................5 2.2 TEST MODE ................................................................................................................................................7 2.3 DESCRIPTION OF SUPPORT UNITS ...............................................................................................................7 2.4 TEST FACILITY ............................................................................................................................................7 2.5 ADDITIONAL INSTRUCTIONS .........................................................................................................................7 3. TEST INSTRUMENTS LIST ......................................................................................................................8 4. TEST RESULTS AND MEASUREMENT DATA .......................................................................................9 4.1 ANTENNA REQUIREMENT .............................................................................................................................9 4.2 CONDUCTED EMISSIONS ...........................................................................................................................10 4.3 DUTY CYCLE .............................................................................................................................................13 4.4 CONDUCTED OUTPUT POWER ...................................................................................................................14 4.5 6DB BANDWIDTH ......................................................................................................................................17 4.6 POWER SPECTRAL DENSITY ......................................................................................................................20 4.7 BAND EDGES ............................................................................................................................................23 Conducted Emission Method ...................................................................................................................23 Radiated Emission Method ......................................................................................................................26 4.8 SPURIOUS EMISSION .................................................................................................................................28 Conducted Emission Method ...................................................................................................................28 Radiated Emission Method ......................................................................................................................32 5. TEST SETUP PHOTO .............................................................................................................................39 6. EUT CONSTRUCTIONAL DETAILS .......................................................................................................39 - Page 4 of 39 - Report No.: ET-26062820E Tel:(86-0755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 1. Test Summary Test Item Section Result Test by Antenna requirement 47CFR part 15.203/15.247 (b)(4) Pass / AC Power Line Conducted Emission 47CFR part 15.207 Pass Jason Huang Conducted Peak Output Power 47CFR part 15.247 (b)(3) Pass Oliver Wang 6dB Bandwidth 47CFR part 15.247 (a)(2) Pass Oliver Wang Power Spectral Density 47CFR part 15.247 (e) Pass Oliver Wang Band Edge 47CFR part 15.247(d) 47CFR part 15.205/15.209 Pass Oliver Wang Spurious Emission 47CFR part 15.247(d) 47CFR part 15.205/15.209 Pas…

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OA-C07 Guangzhou Cambrian Electronic Technology Co., Ltd. OA-C07_V01 1 OverAir ® SMD RoHS PN:OA-C07 2.4 GHz ISM SMD Antenna Specification Address: Hongda Commercial and Creative Park 1, No. 96 Yuanxiang Road, Yunpu Street, Huangpu District, Guangzhou City OA-C07 OA-C07_V01 2 (mm) L3.5±0.2 w1.7±0.1 T1.2±0.1 a0.4±0.1 Guangzhou Cambrian Electronic Technology Co., Ltd. OA-C07 OA-C07_V01 3 Electrical Characteristics OA-C07Specification 工作频率范围Working Frequency2450±50MHz 带宽Band Width >100MHz 阻抗Impedance50Ω 增益Gain(dBi)3.74（peak） 驻波比VSWR <2 工作温度Operation Temperature-40°C~+95°C 可承受功率Power Capacity 3W Antenna Pad & PCB Routing Design Guangzhou Cambrian Electronic Technology Co., Ltd. OA-C07 OA-C07_V01 4 Guangzhou Cambrian Electronic Technology Co., Ltd. OA-C07 OA-C07_V01 5 Test Board Information VSWR Guangzhou Cambrian Electronic Technology Co., Ltd. OA-C07 OA-C07_V01 6 Radiation Efficiency & Radiation Pattern All efficiency, radiation pattern and gain data are measured on the designated test PCB within an ETS 3D microwave anechoic chamber. Test results cover the 2.4 GHz – 2.5 GHz bandwidth. Performance Parameter 2.4G-2.5GHz Peak Gain 3.74dBi Average Gain across the band 3.66dBi Gain Range across the band 3.42dBi~3.74dBi Peak Efficiency 58.9% Average Efficiency across the band 55.9% Z Y X Guangzhou Cambrian Electronic Technology Co., Ltd. OA-C07 OA-C07_V01 7 Efficiency Range across the band 53.0%~58.9% Theta @2.45 GHz Phi @2.45 GHz Total @2.45 GHz Guangzhou Cambrian Electronic Technology Co., Ltd.