2BFIZ-X4ARPROJECTOR

Chengdu Hotack Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [July 22, 2026] U.S. Agent Designation [Chengdu Hotack Technology Co., Ltd.] 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: 2BFIZ-X4AR 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 [Chengdu Hotack Technology Co., Ltd.]. [Chengdu Hotack Technology Co., Ltd.] with the FRN [0035156322] 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 [Star Hu] [Huiying Fan] [Manager] [Director] [Chengdu Hotack Technology Co., Ltd.] [GLOCERTS TECHNOLOGY INC]

Chengdu Hotack Technology Co., Ltd. (July 21, 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:2BFIZ-X4AR [Chengdu Hotack 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)Star Hu Chengdu Hotack Technology Co., Ltd. (July 21, 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:2BFIZ-X4AR [Chengdu Hotack 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)Star Hu

Chengdu Hotack Technology Co., Ltd. Model Difference Data:July 21, 2026 Product description: PROJECTOR Model name: X4AR, X4 Ultra, X4 Pro Max, X4 Max, X4AI, X4 Plus, M5AR, M5, M5PR0, HT1, HT2, HT3, HT4, HT5, HT6, HT7, HT8, HT9, SKW2603, SDT2603, CW2603, QV2000, WV2000, TP400 NTV, TP400 GTV, X4AR, TP400, X4ER, PL800, PL900, X4 Trade Name: N/A FCC ID: 2BFIZ-X4AR All the model are the same circuit and RF module, only the name, appearance and colors are different. Regards Sincerely Client’s signature : Client’s name / title : Star Hu(Manager) Contact information / address:501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province, China.

Chengdu Hotack Technology Co., Ltd. (July 21, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (PROJECTOR / X4AR, X4 Ultra, X4 Pro Max, X4 Max, X4AI, X4 Plus, M5AR, M5, M5PR0, HT1, HT2, HT3, HT4, HT5, HT6, HT7, HT8, HT9, SKW2603, SDT2603, CW2603, QV2000, WV2000, TP400 NTV, TP400 GTV, X4AR, TP400, X4ER, PL800, PL900, X4 / FCC ID: 2BFIZ-X4AR ) 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: Star Hu Title: Manager

Chengdu Hotack Technology Co., Ltd. (July 21, 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 CTB 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: Star Hu Title: Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: X4AR 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 §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BFIZ-X4AR Applied procedures / limit According to FCC §15.247(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. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna,R=20cm Test Result of RF Exposure Evaluation BT+WIFI supported simultaneous transmission: BT+2.4GWIFI: ∑MPE Ratio =0.00125/1+0.01042/1=0.01167≤1, BT+5GWIFI: ∑MPE Ratio =0.00125/1+0.008/1=0.00925≤1, So passed. Modes& Channel Freq. (MHz) Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result BLE:1M GFSK & MCH 2±1 3 1.9953 2.5003 (3.98dBi) 0.00099 1 Pass BLE:2M GFSK & MCH 2±1 3 1.9953 2.5003 (3.98dBi) 0.00099 1 Pass EDR 8DPSK & MCH 3±1 4 2.5119 2.5003 (3.98dBi) 0.00125 1 Pass 2.4GWIFI 802.11b & LCH 14±1 15 31.6228 1.6558 (2.19dBi) 0.01042 1 Pass 5.2GWIFI 802.11ac2 0 &5240 12±1 13 19.9526 1.9679 (2.94dBi) 0.00782 1 Pass 5.8GWIFI 802.11ax2 0&5825 11±1 12 15.8489 2.5351 (4.04dBi) 0.008 1 Pass

Report Tel: 4008-707-283Web: http://www.ctb-lab.net Page 1 of 68 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. The tested sample(s) and the sample information are provided by the applicant. The authenticity, accuracy, and completeness of the provided information are the sole responsibility of the applicant. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The result decision rules of our laboratory are based solely on the direct comparison between the actual measured values of test results and the standard limits, without considering the measurement uncertainty.“” indicates the testing items were fulfilled by subcontracted lab. “” indicates the items are not in CNAS accreditation scope. Test item description: PROJECTOR FCC ID: 2BFIZ-X4AR Trademark(s): N/A Model/Type reference: X4AR, X4 Ultra, X4 Pro Max, X4 Max, X4AI, X4 Plus, M5AR, M5, M5PR0, HT1, HT2, HT3, HT4, HT5, HT6, HT7, HT8, HT9, SKW2603, SDT2603, CW2603, QV2000, WV2000, TP400 NTV, TP400 GTV, X4AR, TP400, X4ER, PL800, PL900, X4 Applicant’s name: Chengdu Hotack Technology Co., Ltd. Address: 501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province, China. Manufacturer: Chengdu Hotack Technology Co., Ltd. Address: 501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province, 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: Jun. 08, 2026 Sample tested Date: Jun. 08, 2026 to Jun. 29, 2026 Issue Date: Jun. 29, 2026 Report No.: CTB26060806402RF02 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.: CTB26060806402RF02 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 68 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................................ 4 2. TEST SUMMARY .......................................................................................................................................... 5 3. MEASUREMENT UNCERTAINTY............................................................................................................. 6 4. PRODUCT INFORMATION AND TEST SETUP ..................................................................................... 7 4.1 Product Information .................................................................................................................................................... 7 4.2 Test Setup Configuration .......................................................................................................................................... 7 4.3 Support Equipment ..................................................................................................................................................... 7 4.4 Channel List .................................................................................................................................................................. 8 4.5 Test Mode ...................................................................................................................................................................... 8 4.6 Test Environment ........................................................................................................................................................ 8 5. TEST FACILITY AND TEST INSTRUMENT USED ................................................................................ 9 5.1 Test Facility ................................................................................................................................................................... 9 5.2 Test Instrument Used ................................................................................................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION .......................................................................................... 12 6.1 Block Diagram Of Test Setup ................................................................................................................................ 12 6.2 Limit ............................................................................................................................................................................... 12 6.3 Test procedure ........................................................................................................................................................... 12 6.4 Test Result .................................................................................................................................................................. 14 7. RADIATED SPURIOUS EMISSION ........................................................................................................ 16 7.1 Block Diagram Of Test Setup ................................................................................................................................ 16 7.2 Limit ............................................................................................................................................................................... 16 7.3 Test procedure ............................…

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8Project: Author:Wang WZZ010035002 Date: 2026-04-07 TEST: Language: Check: Zhong A English 地址: 深圳市龙华区大浪街道华芳路12号金瑞华工业园C栋4楼 电话：0755-29195258 传真：0755-29590286 Shenzhen Lxc Electronics Technology Co ., Ltd - 1 - 8Project: Author:Wang WZZ010035002 Date: 20 26-04 -07 TEST : Language: Check: Zhong A English Address: 4th Floor, Building C, Jinruihua Industrial Park, No. 12 Huafang Road, Dalang Subdistrict, Longhua District, Shenzhen 电话：0755-29195258 传真：0755-29590286 Shenzhen Lxc Electronics Technology Co ., Ltd - 2 - Revision History Date Revision Description of Changes 20 26 -04 -07 RA Measured with SUS301 sample. 深圳市连兴创电子科技有限公司 .................................................................................. 1 PROJECT ................................................................................................................. 2 ANTENNA COMPONENTST ..................................................................................... 3 1 TECHNICAL SUMMARY ...................................................................................... 3 2 GENERAL DESCRIPTION ................................................................................... 3 2.1 Components/Part revisions ....................................................................................................................... 3 3 MECHANICAL DESCRIPTION ............................................................................. 3 4 ELECTRICAL PERFORMANCE ........................................................................... 3 4.1 Set -up .......................................................................................................................................................... 3 4.1.1 VS WR ................................................................................................................................................. 3 4.1.2 Gain & Radiation Patterns ............................................................................................................... 3 4.1.3 Matching Circuit Description ........................................................................................................... 3 4.2 Measurement Data .................................................................................................................................... 3 4.2.1 Active result（GSM） ........................................................................................................................ 3 6 Mechanical drawing .......................................................................................................................................... 5 7 RELIABILITY TESTS ............................................................................................ 9 7.1 Test content ................................................................................................................................................ 9 7.2 Test results ................................................................................................................................................. 9 8 CONCLUSION ...................................................................................................... 9 8Project: Author:Wang WZZ010035002 Date: 20 26-04 -07 TEST : Language: Check: Zhong A English Address: 4th Floor, Building C, Jinruihua Industrial Park, No. 12 Huafang Road, Dalang Subdistrict, Longhua District, Shenzhen 电话：0755-29195258 传真：0755-29590286 Shenzhen Lxc Electronics Technology Co ., Ltd - 3 - 1 Technical Summary This report summarizes the electrical results of the proposed antenna to support the program. We test the antenna with the latest version handset. And it seems to be acceptable. 2 General Description 2.1 Components/Part revisions VSWR: Voltage Standing Wave Rate . 3 Mechanical Description 4 Electrical Performance 4.1 Set-up 4.1.1 VSWR VSWR measurements (S11) were performed using an Agilent 8753D Network Analyzer and the previously described test fixture. Coaxial chokes were used to mitigate surface currents on the outside of the cabling. The testing was performed in free space. 4.1.2 Gain & Radiation Patterns The gain of the antenna was measured in the Lxc ’s anechoic chamber. Coaxial chokes on the feed cable were used to mitigate surface currents. The chamber provides less than –30 dB reflectivity from 800 MHz through 3 GHz and an 18” diameter spherical quite zone. The measurement results are calibrated using both dipole and leaky wave horn standards. 4.1.3 Matching Circuit Description 4.2 Measurement Data 4.2.1 Active result（WIFI） 8Project: Author:Wang WZZ010035002 Date: 20 26-04 -07 TEST : Language: Check: Zhong A English 电话：0755-29195258 传真：0755-29590286 Shenzhen Lxc Electronics Technology Co ., Ltd - 4 - Address: 4th Floor, Building C, Jinruihua Industrial Park, No. 12 Huafang Road, Dalang Subdistrict, Longhua District, Shenzhen 8Project: Author:Wang WZZ010035002 Date: 2026-04-07 TEST: Language: Check: Zhong A English 电话：0755-29195258 传真：0755-29590286 Shenzhen Lxc Electronics Technology Co ., Ltd - 5 - Address: 4th Floor, Building C, Jinruihua Industrial Park, No. 12 Huafang Road, Dalang Subdistrict, Longhua District, Shenzhen 8Project: Author:Wang WZZ010035002 Date: 2026-04-07 TEST: Language: Check: Zhong A English 电话：0755-29195258 传真：0755-29590286 Shenzhen Lxc Electronics Technology Co ., Ltd - 6 - Address: 4th Floor, Building C, Jinruihua Industrial Park, No. 12 Huafang Road, Dalang Subdistrict, Longhua District, Shenzhen 8Project: Author:Wang WZZ010035002 Date: 20 26-04 -07 TEST : Language: Check: Zhong A English 电话：0755-29195258 传真：0755-29590286 Shenzhen Lxc Electronics Technology Co ., Ltd - 7 - Address: 4th Floor, Building C, Jinruihua Industrial Park, No. 12 Huafang Road, Dalang Subdistrict, Longhua District, Shenzhen 8Project: Author:Wang WZZ010035002 Date: 2026-04-07 TEST: Language: Check: Zhong A English 电话：0755-29195258 传真：0755-29590286 Shenzhen Lxc Electronics Technology Co ., Ltd - 8 - 6 Mechanical drawing Address: 4th Floor, Building C, …

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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: X4AR Test Setup Photos of EUT 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 RF Conducted