2BF6E-KP1Projector

Shandong Yihang Electronic Technology Development Co., Ltd. (September 19, 2024) 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: 2BF6E-KP1 [Shandong Yihang Electronic Technology Development 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. Sincerely, (Applicant signature) (Applicant printed name) Yilong Wang Shandong Yihang Electronic Technology Development Co., Ltd. (September 19, 2024) 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: 2BF6E-KP1 [Shandong Yihang Electronic Technology Development 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) Yilong Wang

Shandong Yihang Electronic Technology Development Co., Ltd. (September 19, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Projector / KP1 / FCC ID: 2BF6E-KP1 ) 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: Yilong Wang Title: Manager

Shandong Yihang Electronic Technology Development Co., Ltd. (September 19, 2024) 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: Yilong Wang Title: Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: KP1 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: 2BF6E-KP1 Model No.: KP1

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BF6E-KP1 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 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 EDR 8DPSK&M CH 2±1 3 1.9953 1.4622 (1.65dBi) 0.0006 1 Pass 5GWIFI ANT1 802.11n(H T40)& 5755 16±1 17 50.1187 1.3274 (1.23dBi) 0.013 1 Pass 5GWIFI ANT2 802.11a&5 745 14±1 15 31.6228 1.3274 (1.23dBi) 0.0084 1 Pass For the Max simultaneous transmission MPE: When a number of sources at different frequencies, and/or broadband sources, contribute to the total exposure, it becomes necessary to weigh each contribution relative to the MPE in accordance with the provisions of Table (A) and Table (B). To comply with the MPE, the fraction of the MPE in terms of E2, H2 (or power density) incurred within each frequency interval should be determined and the sum of all such fractions should not exceed unity. In order to ensure compliance with the MPE for a controlled environment, the sum of the ratios of the power density to the corresponding MPE should not exceed unity. That is BT+WIFI supported simultaneous transmission: EDR +5GWIFI MIMO: ∑MPE Ratio =0.0006+0.0214=0.022≤1, So passed. Tech nolo gy Tune up Produce power(dBm) Maximum Tune-up (dBm) Antenna Gain(ANT 1/ANT 2) (numeric) Power Density (S) (mW/ cm2) MPE Limit (mW/ cm2) ∑ MPE Ratio ∑ MPE Ratio Limit Result ANT 1 ANT 2 ANT 1 ANT 2 ANT 1 ANT 2 5G WIFI MIM O 16 ±1 14 ±1 17 15 1.3274 (1.23dBi) 0.013 0.0084 1 0.0214 1 Pass

ShenZhen Aihui Technology Co.，Ltd Antenna Technical Specifications Vendor Name ShenZhen Aihui Technology Co.，Ltd Customer Name ZHINIU Sample Name Dual-Band Antenna Part Number Specification AH with 1st Generation Connector, 150mm (1.13) Inspection Item Performance Total Appearance structure Others Inspection Result Remark QA Audit Engineer Audit Cao Yang Sales Confirm The following are filled by Customer Customer Evaluation Signation/ Chapter by Customer date:2022.12.30 Address: 4th Floor, Building C, Juxin Technology Industrial Park, No. 58 Nanchang Road, Gushu, Xixiang, Bao' an District, Shenzhen, China TEL： 0755-23203435 FAX：0755-23203435 ShenZhen Aihui Technology Co.，Ltd Antenna Test Report Test by ：ShenZhen Aihui Technology Co.，Ltd Material FPC + Coaxial Cable Antenna Type MonopoleType Polarization mode Linear Application Band VSWR ≤1.5 Power Max：2W Impedance 50Ω Gain（dBi） ≥1.5dBi ± 0.5dBi Test Equipment HPE5071C 、Shielding Room 、3D automatic turntable Antenna Description:： 1. Grounding processing and picture description: no 2.Need to change the motherboard to match: no Test voltage: 3.6V, check the antenna contact is good before testing. The RF cable of the integrated tester is kept in a natural state and can not be curled. Specification:test the specified power level, all indicators must conform to the specifications. Address: 4th Floor, Building C, Juxin Technology Industrial Park, No. 58 Nanchang Road, Gushu, Xixiang, Bao' an District, Shenzhen, China TEL： 0755-23203435 FAX：0755-23203435 ShenZhen Aihui Technology Co.，Ltd 1、Project Images 2、Test Equipment 3、Antenna Matching Circuit 4、S11 Testing 4.0 S11 Testing Method Description 4.1 S11 Parameter Images 5.Anechoic Chamber Test Equipment and Data 5.0 Test Equipment 5.1 Active Test Data 6.Antenna Assembly Diagram 7.Antenna Environmental Treatment 8.Antenna Mass Production Specifications 9.Structural Drawings Address: 4th Floor, Building C, Juxin Technology Industrial Park, No. 58 Nanchang Road, Gushu, Xixiang, Bao' an District, Shenzhen, China TEL： 0755-23203435 FAX：0755-23203435 ShenZhen Aihui Technology Co.，Ltd 1.Project Images 1.1 Purpose The purpose of this section is to standardize the specifications and testing methods for the mobile communication terminal antennas produced by Shenzhen Aihui Technology Co., Ltd. This standardization aims to minimize errors caused by variations in testing conditions and methods. 1.2 Product Categories and Overview Product Model Overview This report provides an overview of the electrical results for the antenna designed as part of the FPC (Flexible Printed Circuit) project. The antenna is designed for the following frequency bands: 2.4G/5.8G Dual-Band 1.3 Basic Parameters and Experimental Equipment Description Basic Parameters Electrical Performance Specifications Operating Frequency Range 2400-2500MHz 4900-5850MHz Voltage Standing Wave Ratio 2400-2500 MHz: < 1.5 4900-5850 MHz: < 1.5 Antenna Gain 2400-2500 MHz: 1.5dBi ± 0.5dBi 4900-5850 MHz: 1.5dBi ± 0.5dBi Radiation Efficiency 2400-2500MHz: > 50% 4900-5850 MHz: > 50% Impedance 50 ohm Product Materials Description FPC Electrolytic Copper + PI (Polyimide) Coaxial Cable Braided Wire Product Environmental Conditions Operating Temperature -30 ̊C ~ + 85 ̊C Storage Temperature -30 ̊C ~ + 85 ̊C Experimental Equipment Description List Testing project Equipment 1. S Parameters 1.Return loss 2. VSWR at Network analyzer: Agilent 8753ES 2. Coupling power test 1. Transmission power 2. Receiving sensitivity Comprehensive tester: Agilent 8960 E5515C Address: 4th Floor, Building C, Juxin Technology Industrial Park, No. 58 Nanchang Road, Gushu, Xixiang, Bao' an District, Shenzhen, China TEL： 0755-23203435 FAX：0755-23203435 ShenZhen Aihui Technology Co.，Ltd 3. Radiation pattern and gain 1. Radiation pattern 2. Antenna gain 1. Darkroom： 7x4x3 m (3D) 2. Network analyzer ：Agilent 8753ES Note: The final prototype of the antenna, validated by the customer, will be retained by our company for at least one year to facilitate the analysis and resolution of any anomalies encountered during mass production, ensuring the quality of the shipped antennas. 2. Testing Fixtures Purpose: To measure the passive parameters of the antenna as accurately as possible. Fabrication Method: The testing fixture for the phone consists of a 50-ohm coaxial cable. One end of the cable is connected to the test point at the rear end of the matching circuit on the phone's mainboard (at the front end of the RF test port), while the other end is connected to an SMA connector. The schematic diagram is as follows: 3.Antenna Matching Circuit Antenna Matching Circuit/Modify E01 E02 E03 No No No Note: No modifications to the matching circuit Address: 4th Floor, Building C, Juxin Technology Industrial Park, No. 58 Nanchang Road, Gushu, Xixiang, Bao' an District, Shenzhen, China TEL： 0755-23203435 FAX：0755-23203435 ShenZhen Aihui Technology Co.，Ltd 4.S11 Testing 4.0 S11 Testing Method Description Test Equipment: Network Analyzer (E5071C) Testing Method: Connect a 50-ohm coaxial cable from the test port of the instrument. After calibration using a calibration kit, connect the cable to the SMA connector of the phone fixture. Record the return loss and VSWR corresponding to the relevant frequency points. The test schematic diagram is as follows: Test Schematic Diagram 5.Anechoic Chamber Test Equipment and Data 5.0 Test Equipment Testing System: Shielded Anechoic Chamber Testing Environment: Temperature 22 C ± 3 C, Humidity 50% ± 15% Testing Equipment: For measuring passive data, use the Network Analyzer Agilent E5071C For measuring active data, use the CMW500 Communication Test Set. Address: 4th Floor, Building C, Juxin Technology Industrial Park, No. 58 Nanchang Road, Gushu, Xixiang, Bao' an District, Shenzhen, China TEL：0755-23203435 FAX：0755-23203435 。 。 ShenZhen Aihui Technology Co.，Ltd 5.1 Passive VSWR of the Antenna 5.2 Passive Test Data of the Antenna Test Data: Frequency(MHZ) Efficiency（%） Gain（d…

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TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu 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. Product Name: Projector FCC ID: 2BF6E-KP1 Trademark: KINHANK Model Number: KP1 Prepared For: Shandong Yihang Electronic Technology Development Co., Ltd. Address: Room 1703, Unit 1, Building 1, Fortune 1 Plaza, Huaiyin District, Jinan City, Shandong Province Manufacturer: Shandong Yihang Electronic Technology Development Co., Ltd. Address: Room 1703, Unit 1, Building 1, Fortune 1 Plaza, Huaiyin District, Jinan City, Shandong Province 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: Aug. 29, 2024 Sample tested Date: Aug. 29, 2024 to Sep. 05, 2024 Issue Date: Sep. 05, 2024 Report No.: CTB240905003RFX Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.:CTB240905003RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 56 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 ...................................................................... 17 7.4 Test Result ......................................................................... 18 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 27 8.1 Block Diagram Of Test Setup .......................................................... 27 8.2 Limit ............................................................................... 27 8.3 Test procedure ...................................................................... 27 8.4 Test Result ......................................................................... 28 9. COUDUCTED PEAK OUTPUT POWER ............................................... 35 9.1 Block Diagram Of Test Setup .......................................................... 35 9.2 Limit ............................................................................... 35 9.3 Test procedure ...................................................................... 35 9.4 Test Result ......................................................................... 35 10. 20DB OCCUPIED BANDWIDTH ..................................................... 39 10.1 Block Diagram Of Test Setup ......................................................... 39 10.2 Limit .............................................................................. 39 10.3 Test procedure ..................................................................... 39 10.4 Test Result ........................................................................ 39 11. CARRIERFREQUENCIES SEPARATION ............................................. 43 11.1 Block Diagram Of Test Setup ......................................................... 43 11.2 Limit .............................................................................. 43 11.3 Test procedure ..................................................................... 43 11.4 Test Result ........................................................................ 43 12. HOPPING CHANNEL NUMBER ..................................................... 47 12.1 Block Diagram Of Test Setup ......................................................... 47 12.2 Limit .............................................................................. 47 12.3 Test…

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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: KP1 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