2AOQN-YM08Digital Signage Player

(Shenzhen Lunzn Technology CO., Ltd.) (May 9, 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: 2AOQN-YM08) [Shenzhen Lunzn 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. Sincerely, (Applicant signature) (Applicant printed name) Xinchao Li (Shenzhen Lunzn Technology CO., Ltd.) (May 9, 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: 2AOQN-YM08) [Shenzhen Lunzn 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) Xinchao Li

Attestation Statements (May 9, 2024) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID: 2AOQN-YM08) (Shenzhen Lunzn Technology CO., Ltd.), the undersigned, hereby authorize (Live Signs Advertising Inc.) to act as our designated U.S. agent for service of process, (Shenzhen Lunzn Technology 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 the equipment. (Live Signs Advertising Inc.) accepts the responsibility to act as designated U.S. agent for service of process, provides 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 the equipment. Applicant Information： Company name: Shenzhen Lunzn Technology CO., Ltd. Contact Name: Xinchao Li Address: Room606, Gangtou Development Building, No. 133 Xuegang North Road, Bantian Street, Longgang District, Shenzhen, China Telephone No: 13538214502 Email: [email protected] FRN: 0027124015 Signature [Xinchao Li] U.S. Agent Information: Company Name: Live Signs Advertising Inc. Address: 2750 W.Devonshire Ave.Hemet,CA.92545 Contact Name: Dumitru Damian Telephone No: (195) 153-1450 Email: [email protected] FRN: 0033410788 Signature [Dumitru Damian]

Shenzhen Lunzn Technology CO., Ltd. (May 9, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Digital Signage Player / YM08 / FCC ID: 2AOQN-YM08) 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: Xinchao Li Title: Manager

Shenzhen Lunzn Technology CO., Ltd. (May 9, 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: Xinchao Li Title: Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: YM08 External Photos ANT 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: 2AOQN-YM08 Model No.: YM08

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2AOQN-YM08 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 2.4G WIFI ANT1 802.11b&2 437 14±1 15 31.6228 2.2491 (3.52dBi) 0.0142 1 Pass 2.4G WIFI ANT2 802.11b&2 437 13±1 14 25.1189 2.2491 (3.52dBi) 0.0112 1 Pass 5.2GWIFI ANT1 802.11a&5 240 13±1 14 25.1189 2.0091 (3.03dBi) 0.01 1 Pass 5.2GWIFI ANT2 802.11a&5 240 14±1 15 31.6228 2.0091 (3.03dBi) 0.0126 1 Pass 5.8GWIFI ANT1 802.11n(H T40)& 5795 14±1 15 31.6228 1.6866 (2.27dBi) 0.0106 1 Pass 5.8GWIFI ANT2 802.11n(H T20)& 5825 13±1 14 25.1189 1.6866 (2.27dBi) 0.0084 1 Pass 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 2.4G WIFI MIM O 14 ±1 13 ±1 15 14 2.2491 (3.52dBi) 0.0142 0.0112 1 0.0254 1 Pass 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 13 ±1 14 ±1 14 15 2.0091 (3.03dBi) 0.01 0.0126 1 0.0226 1 Pass

深圳市云顶通讯电子有限公司 Shenzhen Yunding Communication Electronics Co.,Ltd. 吴淑依 2024-4-17 剑型2.4+5G-双出线-天线测试报告 深圳云顶通讯电子有限公司 Shenzhen Yunding Communication Electronics Co.,Ltd. 一、测试环境 深圳云顶通讯电子有限公司 Shenzhen Yunding Communication Electronics Co.,Ltd. 二、天线效率与增益 2.4G接口 深圳云顶通讯电子有限公司 Shenzhen Yunding Communication Electronics Co.,Ltd. 5G接口

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: Digital Signage Player FCC ID: 2AOQN-YM08 Trademark: Lunzn Model Number: YM08 Prepared For: Shenzhen Lunzn Technology CO., Ltd. Address: Room606, Gangtou Development Building, No. 133 Xuegang North Road, Bantian Street, Longgang District, Shenzhen, China Manufacturer: Shenzhen Lunzn Technology CO., Ltd. Address: Room606, Gangtou Development Building, No. 133 Xuegang North Road, Bantian Street, Longgang District, Shenzhen, 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: Apr. 19, 2024 Sample tested Date: Apr. 19, 2024 to May. 06, 2024 Issue Date: May. 06, 2024 Report No.: CTB240430025RFX 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.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 95 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 ................................................ 8 4.3 Support Equipment ..................................................... 8 4.5 Test Mode ............................................................. 9 4.6 Test Environment ....................................................... 9 5. TEST FACILITY AND TEST INSTRUMENT USED ........................ 10 5.1 Test Facility ........................................................... 10 5.2 Test Instrument Used .................................................. 10 6. AC POWER LINE CONDUCTED EMISSION ............................. 13 6.1 Block Diagram Of Test Setup ........................................... 13 6.2 Limit ................................................................. 13 6.3 Test procedure ........................................................ 13 6.4 Test Result ........................................................... 15 7. RADIATED SPURIOUS EMISSIONS .................................... 17 7.1 Block Diagram Of Test Setup ........................................... 17 7.2 Limit ................................................................. 17 7.3 Test procedure ........................................................ 18 7.4 Test Result ........................................................... 19 8. BAND EDGE ........................................................ 24 8.1 Block Diagram Of Test Setup ........................................... 24 8.2 Limit ................................................................. 24 8.3 Test procedure ........................................................ 24 8.4 Test Result ........................................................... 25 9. CONDUCTED OUTPUT POWER ....................................... 33 9.1 Block Diagram Of Test Setup ........................................... 33 9.2 Limit ................................................................. 33 9.3 Test procedure ........................................................ 34 9.4 Test Result ........................................................... 35 10. EMISSION BANDWIDTH& OCCUPIED BANDWIDTH ..................... 48 10.1 Block Diagram Of Test Setup .......................................... 48 10.2 Limits ............................................................... 48 10.3 Test Procedure ....................................................... 48 10.4 Test Results ......................................................... 50 11. POWER SPECTRAL DENSITY ........................................ 64 11.1 Block Diagram Of Test Setup .......................................... 64 11.2 Limit ................................................................ 64 11.3 Test procedure ....................................................... 64 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 95 11.4 Test Result .......................................................... 66 12. FREQUENCY STABILITY ............................................. 79 12.1 Block Diagram Of Test Setup .......................................... 79 12.2 Limit ................................................................ 79 12.3 Test procedure ....................................................... 79 12.4 Test Result .......................................................... 80 13. OPERATION IN THE ABSENCE OF INFORMATION TO THE TRANSMIT ... 92 13.1 Requirement ......................................................... 92 13.2 Test Results ......................................................... 92 14. ANTENNA REQUIREMENT ........................................... 93 15. EUT TEST SETUP PHOTOGRAPHS ................................... 94 (NOTE: N/A MEANS NOT APPLICABLE) Shenzhen CTB Testing Tec…

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Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 56 of 95 802.11ac(VH80)-5210 802.11n(HT20)-5180 802.11n(HT20)-5200 802.11n(HT20)-5240 802.11n(HT40)-5190 802.11n(HT40)-5230 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 57 of 95 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 58 of 95 ANT1: 5745-5825MHz 802.11a-5745 802.11a-5785 802.11a-5825 802.11ac(VH20)-5745 802.11ac(VH20)-5785 802.11ac(VH20)-5825 802.11ac(VH40)-5755 802.11ac(VH40)-5795 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 59 of 95 802.11ac(VH80)-5775 802.11n(HT20)-5745 802.11n(HT20)-5785 802.11n(HT20)-5825 5802.11n(HT40)-5755 802.11n(HT40)-5795 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 60 of 95 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 61 of 95 ANT2: 5745-5825MHz 802.11a-5745 802.11a-5785 802.11a-5825 802.11ac(VH20)-5745 802.11ac(VH20)-5785 802.11ac(VH20)-5825 802.11ac(VH40)-5755 802.11ac(VH40)-5795 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 62 of 95 802.11ac(VH80)-5775 802.11n(HT20)-5745 802.11n(HT20)-5785 802.11n(HT20)-5825 5802.11n(HT40)-5755 802.11n(HT40)-5795 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 63 of 95 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 64 of 95 11. POWER SPECTRAL DENSITY 11.1 Block Diagram Of Test Setup 11.2 Limit (1) For the band 5.15-5.25 GHz. (iv) For mobile and portable client devices in the 5.15-5.25 GHz band, the maximum conducted output power over the frequency band of operation shall not exceed 250 mW provided the maximum antenna gain does not exceed 6 dBi. In addition, the maximum power spectral density shall not exceed 11 dBm in any 1 megahertz band. If transmitting antennas of directional gain greater than 6 dBi are used, both the maximum conducted output power and the maximum power spectral density shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6 dBi. (2) For the 5.25-5.35 GHz and 5.47-5.725 GHz bands, the maximum conducted output power over the frequency bands of operation shall not exceed the lesser of 250 mW or 11 dBm + 10 log B, where B is the 26 dB emission bandwidth in megahertz. In addition, the maximum power spectral density shall not exceed 11 dBm in any 1 megahertz band. If transmitting antennas of directional gain greater than 6 dBi are used, both the maximum conducted output power and the maximum power spectral density shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6 dBi. (3) For the band 5.725-5.85 GHz, the maximum conducted output power over the frequency band of operation shall not exceed 1 W. In addition, the maximum power spectral density shall not exceed 30 dBm in any 500-kHz band. If transmitting antennas of directional gain greater than 6 dBi are used, both the maximum conducted output power and the maximum power spectral density shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6 dBi. However, fixed point-to-point U-NII devices operating in this band may employ transmitting antennas with directional gain greater than 6 dBi without any corresponding reduction in transmitter conducted power. Fixed, point-to-point operations exclude the use of point-to-multipoint systems, omnidirectional applications, and multiple collocated transmitters transmitting the same information. The operator of the U-NII device, or if the equipment is professionally installed, the installer, is responsible for ensuring that systems employing high gain directional antennas are used exclusively for fixed, point-to-point operations. 11.3 Test procedure According to KDB789033 D02v02r01 sectionE, the following is the measurement procedure. For devices operating in the bands 5.15−5.25 GHz, 5.25−5.35 GHz, and 5.47−5.725 GHz, the preceding procedures make use of 1 MHz RBW to satisfy directly the 1 MHz reference bandwidth specified in Section 15.407(a)(5). For devices operating in the band 5.725−5.85 GHz, the rules specify a measurement bandwidth of 500 kHz. Many spectrum analyzers do not have 500 kHz RBW, thus a narrower RBW may need to be used. The rules permit the use of RBWs less than 1 MHz, or 500 kHz, “provided that the measured power is integrated over the full reference bandwidth” to show the total power over the specified measurement bandwidth (i.e., 1 MHz, or 500 kHz). If measurements are performed using a reduced resolution bandwidth (< 1 MHz , or < 500 kHz) and integrated over 1 MHz, or 500 kHz bandwidth, the following adjustments to the procedures apply: a) Set RBW ≥ 1/T, where T is defined in II.B.l.a). b) Set VBW ≥ 3 RBW. c) If measurement bandwidth of Maximum PSD is specified in 500 kHz, add 10 log (500 kHz/RBW) to the measured result, whereas RBW (<500 kHz) is the reduced resolution bandwidth of the spectrum analyzer set Temperature Chamber EUT Radio Test System Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240430025RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 65 of 95 during measurement. d) If measurement bandwidth of Maximum PSD is specified in 1 MHz, add 10 log (1MHz/RBW) to the measured result, whereas RBW (< 1 MHz) is the reduced resolution bandwidth of spectrum analyzer set during measurement. e) Care must be taken to ensure that the measurements are performed during a period of continuous transmission or are …

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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: YM08 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