2BS3N-GC357Smart Projector

Shenzhen Xincheng E-commerce Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [January 14, 2026] U.S. Agent Designation [Shenzhen Xincheng E-commerce 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: 2BS3N-GC357 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 [Shenzhen Xincheng E-commerce Technology Co., Ltd]. [Shenzhen Xincheng E-commerce Technology Co., Ltd] with the FRN [0037636974] 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 [Crystal Cheng] [Huiying Fan] [Certified Engineer] [Director] [Shenzhen Xincheng E-commerce Technology Co., Ltd] [GLOCERTS TECHNOLOGY INC]

Shenzhen Xincheng E-commerce Technology Co., Ltd (January 9, 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: 2BS3N-GC357 [Shenzhen Xincheng E-commerce 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) Crystal Cheng Shenzhen Xincheng E-commerce Technology Co., Ltd (January 9, 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: 2BS3N-GC357 [Shenzhen Xincheng E-commerce 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) Crystal Cheng

Shenzhen Xincheng E-commerce Technology Co., Ltd Model Difference Data：January 9, 2026 Product description: Smart Projector Model name: GC357, A357A, A357B, A357C, A357B-Pro, A357D Trade Name: N/A FCC ID: 2BS3N-GC357 All the model are the same circuit and RF module, only the model names and appearance colors are different. Regards Sincerely Client’s signature : Client’s name / title : Crystal Cheng（Certified Engineer） Contact information / address： 301, Block C, Donghaiwang Building, No. 369 Bulong Road, Ma'antang Com munity, Bantian Street, Longgang District, Shenzhen

Shenzhen Xincheng E-commerce Technology Co., Ltd (January 9, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Smart Projector / GC357, A357A, A357B, A357C, A357B-Pro, A357D / FCC ID: 2BS3N-GC357) 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: Crystal Cheng Title: Certified Engineer

Shenzhen Xincheng E-commerce Technology Co., Ltd (January 9, 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: Crystal Cheng Title: Certified Engineer

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 5 Model: GC357 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 5 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 5 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 5 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 5 of 5

FCC ID LABEL: Label Location: FCC ID: 2BS3N-GC357 Model No.: GC357

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BS3N-GC357 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: EDR+2.4GWIFI: ∑MPE Ratio =0.004/1+0.2065/1=0.2105≤1, EDR+5GWIFI: ∑MPE Ratio =0.004/1+0.0995/1=0.1035≤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 2.4G WIFI 802.11ax( HE20)&24 62 25±1 26 398.107 2 2.6062 (4.16dBi) 0.2065 1 Pass BLE GFSK& HCH 7±1 8 6.3096 2.5645 (4.09dBi) 0.0032 1 Pass EDR GFSK& HCH 8±1 9 7.9433 2.5645 (4.09dBi) 0.004 1 Pass 5.2GWIFI 802.11ax2 0&5240 17±1 18 63.0957 7.9250 (8.99dBi) 0.0995 1 Pass 5.8GWIFI 802.11ax4 0&5795 13±1 14 25.1189 13.4896 (11.30dBi) 0.0674 1 Pass

赣州市江元电子有限公司 GANZHOU JOYAR ELECTRONICS CO.,LTD Released Date：2020-12-01 JY-GG-090037-F1 SPECIFICATION FOR APPROVAL PROVIDER ： All things connected Communications Xiangyang Limited PART NO ： WWXL6009002 PART NO ： DESCRIPTION ： 2.4-5.85GHZ/L=150mm DESCRIPTION ： Network antenna DATE ： 2025-06-16 Please return to us one copy of “SPECIFICATION FOR APPROVAL” With your approved signatures APPROVED SIGNATURES CUSTOMER PROVIDER Ganzhou Jiangyuan Electronics Co. , Ltd. Shenzhen all things connected Communication Co.,Ltd. CHOP&SIGNATURES CHOP&SIGNATURES Tong Xiaoyan DATE DATE 2026.06.06 Ganzhou Jiangyuan Electronics Co. , Ltd 69 Golden Avenue, North District, Ganzhou Ganzhou Economic and Technological Development Zones Tel：86-755-26737355 26737352 Cell phone： 136 6268 URL：www.wwxltx.cn Shenzhen all things connected Communication Co.,Ltd. All things connected Communications Xiangyang Limited Add：Room 1101-1112,Building 4,Fangdacheng,No2,longxhu 4th Road, Nanshan District, Shenzhen City Add: Hubei Xiangyang Gucheng County 1-3 Shuang Yang Road Taoyuan Street,All things connected industrial park, Specification for Antenna Product pictures Test parameters Name Built-in antenna （WWXL6009002） ModelType ELECTRICAL SPECTFICATIONS MECHANICAL SPECTFICATIONS FrenquencyRange 2400-2500/5150-5850MHz Dimensions 27.5*12*0.2 Impedance 50Ω Connector IPEX VSWR ≤3.5 linelength 1.13 Black Low Loss 150±3mm Gain WorkingTemperature -45°C - +85°C Polarization linear Vertical Limit Temperature -45°C - +85°C Radiation Omnidirectional Antenna test environment Cell phone： 136 6268 URL：www.wwxltx.cn Shenzhen all things connected Communication Co.,Ltd. All things connected Communications Xiangyang Limited Add：Room 1101-1112,Building 4,Fangdacheng,No2,longxhu 4th Road, Nanshan District, Shenzhen City Add: Hubei Xiangyang Gucheng County 1-3 Shuang Yang Road Taoyuan Street,All things connected industrial park, test macro： SY-16M /MPS4843 Antenna measurement system testing environment： temperature 22°C±3°C，humidity 50%±15% testing equipment： Agilent 5071C Agilent 8960 Comprehensive measuring instrument Agilent CMW500 4G Comprehensive measuring instrument Cell phone： 136 6268 URL：www.wwxltx.cn Shenzhen all things connected Communication Co.,Ltd. All things connected Communications Xiangyang Limited Add：Room 1101-1112,Building 4,Fangdacheng,No2,longxhu 4th Road, Nanshan District, Shenzhen City Add: Hubei Xiangyang Gucheng County 1-3 Shuang Yang Road Taoyuan Street,All things connected industrial park, Antenna Passive Parameters： VSWR: Product characteristics 1. Choose high-quality RF cable with small attenuation； 2. Stable performance； 3. Stable performance。 Passive efficiency ANT-1 BT Gain&Efficiency&PhaseCenter 增益、效率和相位中心 Frequency 频率(MHz) Gain 增益(dBi) MinGain 最小增益 (dBi) CO Gain 主极化最 大增益 (dBi) CP Gain 交叉极化 最大增益 (dBi) Efficiency 效率(dB) Efficiency 效率(%) 2400.003.82-22.213.790.29-3.4245.53 2410.003.96-22.463.940.28-3.6243.47 2420.003.97-23.083.950.90-3.4445.32 2430.003.64-22.763.630.66-3.7542.18 2440.003.37-21.793.361.05-3.8641.08 2450.003.66-24.293.651.32-3.6742.98 2460.003.08-23.113.060.64-4.2737.39 2470.003.55-20.553.510.71-3.8840.90 2480.004.09-18.484.050.80-3.7442.26 2490.004.00-19.833.950.37-3.8441.32 2500.003.79-20.193.74-0.13-4.0039.78 Gain&Efficiency&PhaseCenter 增益、效率和相位中心 Frequency 频率(MHz) Gain 增益(dBi) MinGain 最小增益 (dBi) CO Gain 主极化最 大增益 (dBi) CP Gain 交叉极化 最大增益 (dBi) Efficiency 效率(dB) Efficiency 效率(%) 5150.005.54-30.823.652.45-2.2859.20 5200.005.81-22.403.752.71-2.3658.13 5250.007.09-25.074.853.22-1.8066.08 5300.007.10-30.894.563.77-2.5156.15 5350.007.77-26.795.174.85-2.6754.14 5400.008.41-25.036.125.53-2.9350.99 5450.009.32-28.667.515.88-2.8052.49 5500.0010.31-37.118.696.61-2.0162.90 5550.009.65-25.028.225.99-2.1760.65 5600.008.68-26.827.534.90-2.5855.21 Cell phone：136 6268 URL：www.wwxltx.cn Shenzhen all things connected Communication Co.,Ltd. All things connected Communications Xiangyang Limited Add：Room 1101-1112,Building 4,Fangdacheng,No2,longxhu 4th Road, Nanshan District, Shenzhen City Add: Hubei Xiangyang Gucheng County 1-3 Shuang Yang Road Taoyuan Street,All things connected industrial park, 5650.009.46-34.118.705.23-1.7467.06 5700.009.58-27.419.214.45-1.6867.96 5750.009.78-42.989.534.58-1.5769.67 5800.009.76-41.659.584.85-1.5869.51 5850.009.53-24.489.304.81-1.9364.09 ANT-2 WIFI Gain&Efficiency&PhaseCenter 增益、效率和相位中心 Frequency 频率(MHz) Gain 增益(dBi) MinGain 最小增益 (dBi) CO Gain 主极化最 大增益 (dBi) CP Gain 交叉极化 最大增益 (dBi) Efficiency 效率(dB) Efficiency 效率(%) 2400.003.78-17.152.531.75-3.0549.58 2410.003.83-17.392.601.82-3.2547.28 2420.004.04-16.862.732.15-2.9950.22 2430.003.73-16.652.321.87-3.2846.97 2440.003.75-16.302.102.02-3.3346.49 2450.004.16-16.282.372.20-3.1348.68 2460.003.48-17.011.721.42-3.8840.94 2470.003.76-17.121.871.74-3.5444.30 2480.003.83-16.211.921.82-3.6742.92 2490.003.51-15.631.551.51-3.8541.21 2500.002.90-15.391.000.89-4.2837.33 Gain&Efficiency&PhaseCenter 增益、效率和相位中心 Frequency 频率(MHz) Gain 增益(dBi) MinGain 最小增益 (dBi) CO Gain 主极化最 大增益 (dBi) CP Gain 交叉极化 最大增益 (dBi) Efficiency 效率(dB) Efficiency 效率(%) 5150.006.50-28.676.242.03-2.4357.15 5200.007.20-33.597.021.97-2.5955.07 5250.008.99-28.818.792.74-2.0662.21 5300.009.24-25.109.012.05-2.5955.02 Cell phone：136 6268 URL：www.wwxltx.cn Shenzhen all things connected Communication Co.,Ltd. All things connected Communications Xiangyang Limited Add：Room 1101-1112,Building 4,Fangdacheng,No2,longxhu 4th Road, Nanshan District, Shenzhen City Add: Hubei Xiangyang Gucheng County 1-3 Shuang Yang Road Taoyuan Street,All things connected industrial park, 5350.009.57-32.969.321.96-2.4456.97 5400.009.51-34.109.202.26-2.5355.84 5450.009.92-27.559.622.33-2.4357.19 5500.0010.89-31.0210.663.01-2.0862.01 5550.0010.54-32.4210.313.36-2.5955.14 5600.0010.05-41.419.803.39-3.1947.97 5650.0011.15-31.7610.824.46-2.2759.34 5700.0011.16-31.9910.755.55-2.2559.56 5750.0011.30-29.2710.916.59-2.1561.02 5800.0011.03-25.5710.747.30-2.0861.97 5850.009.86-24.659.507.25-2.6754.05 Cell phone：136 6268 URL：www.wwx…

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Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 67 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: Smart Projector FCC ID: 2BS3N-GC357 Trademark(s): N/A Model/Type reference: GC357, A357A, A357B, A357C, A357B-Pro, A357D Applicant’s name: Shenzhen Xincheng E-commerce Technology Co., Ltd Address: 301, Block C, Donghaiwang Building, No. 369 Bulong Road, Ma'antang Co mmunity, Bantian Street, Longgang District, Shenzhen Manufacturer: Shenzhen Xincheng E-commerce Technology Co., Ltd Address: 301, Block C, Donghaiwang Building, No. 369 Bulong Road, Ma'antang Co mmunity, Bantian Street, Longgang District, Shenzhen 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: Oct. 30, 2025 Sample tested Date: Oct. 30, 2025 to Dec. 16, 2025 Issue Date: Dec. 16, 2025 Report No.: CTB25103013504RF04 Test Standards FCC CFR Title 47 Part 15 Subpart E Section 15.407 KDB 789033 V02r01 Test Results PASS Remark: This is WIFI-5GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB25103013504RF04 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 67 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 4.5 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 EMISSIONS ........................................................................................... 16 7.1 Block Diagram Of Test Setup ......................................................................................................... 16 7.2 Limit ................................................................................................................................................ 16 7.3 Test procedure ............................................................................................................................... 17 7.4 Test Result ..................................................................................................................................... 18 8. BAND EDGE ................................................................................................................................ 22 8.1 Block Diagram Of Test Setup ......................................................................................................... 22 8.2 Limit ................................................................................................................................................ 22 8.3 Test procedure ............................................................................................................................... 22 8.4 Test Result ..................................................................................................................................... 23 9. CONDUCTED 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: GC357 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