2ASCB-DW055HLB55-Inch Outdoor Wall Mounted Non-Touch Digital Signage

(D2G GROUP LLC) (August 27, 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: 2ASCB-DW055HLB) [D2G GROUP LLC] (“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) Rod Washington (D2G GROUP LLC) (August 27, 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: 2ASCB-DW055HLB) [D2G GROUP LLC] (“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) Rod Washington

Attestation Statements (August 27, 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: 2ASCB-DW055HLB) (D2G GROUP LLC), the undersigned, hereby authorize (D2G Group LLC) to act as our designated U.S. agent for service of process, (D2G GROUP LLC) 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. (D2G Group LLC) 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: D2G Group LLC Address: 81 Commerce Drive, Fall River, Massachusetts 02720, United States Contact Name: Rod Washington Telephone No: 13538214502 Email: [email protected] FRN: 0028157329 U.S. Agent Information: Company Name: D2G Group LLC Address: 81 Commerce Drive, Fall River, Massachusetts 02720, United States Contact Name: Rod Washington Telephone No: 13538214502 Email: [email protected] FRN: 0028157329 Applicant Signature: Agent Signature: Applicant printed name: Rod Washington Agent printed name: Rod Washington

D2G Group LLC Model Difference Data：August 27, 2024 Product description: 55-Inch Outdoor Wall Mounted Non-Touch Digital Signage Model name: DW055HLB, ADW05 Trade Name: N/A FCC ID: 2ASCB-DW055HLB All the model are the same circuit and RF module, except model names . Regards Sincerely Client’s signature : Client’s name / title : Rod Washington（Rod Washington） Contact information / address：81 Commerce Drive, Fall River, Massachusetts 02720, United States

D2G Group LLC (August 31, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (55-Inch Outdoor Wall Mounted Non- Touch Digital Signage / DW055HLB, ADW05 / FCC ID: 2ASCB-DW055HLB) 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: Rod Washington Title: VP, Merchandising

D2G Group LLC (August 27, 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: Rod Washington Title: VP, Merchandising

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: DW055HLB External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 ANT 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

YOUGUANG OPTOELECTRONICS 2024-07-09-001 Antenna VESA Mounting Bracket IR indicator USB port 2.0 On/off switch USB port 3.0 HDMI-IN port AC Power Cord RJ45 Port USB port 2.0 Ambient Light Sensor Speaker Speaker 0.5” 2.8341” 1" 2" 89mm 56mm 1281 12113535 682 35 35 500 500 55" LCD 265W 55-Inch Outdoor Wall Mounted Non-Touch Digital Signage DW055HLB 2ASCB-DW055HLB 3.2A AC90-132V 60Hz 265W 55-Inch Outdoor Wall Mounted Non-Touch Digital Signage DW055HLB 2ASCB-DW055HLB 3.2A AC90-132V 60Hz 265W 55-Inch Outdoor Wall Mounted Non-Touch Digital Signage DW055HLB 2ASCB-DW055HLB 3.2A AC90-132V 60Hz

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2ASCB-DW055HLB 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 802.11b&2 437 20±1 21 125.892 5 1.6596 (2.2dBi) 0.042 1 Pass EDR 8DPSK &LCH 10±1 11 12.5893 2.0184 (2.2dBi) 0.0042 1 Pass 5.2GWIFI 802.11a20 &5180 13±1 14 25.1189 0.6209 (-2.07dBi) 0.0031 1 Pass 5.8GWIFI 802.11a20 &5745 15±1 16 39.8107 1.2942 (1.12dBi) 0.0103 1 Pass

深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 承认书 SPECIFICATIONFORAPPROVAL 客户名称 CUSTOMERNAME: 产品名称 PRODUCTNAME:L46圆形2.4G5.8G天线 客户料号 CUSTOMERP/N: 晟达电子料号 SDP/N:SDL46WIFI6SJ300REV:A MANUFACTURER SIGNATURE CUSTOMER SIGNATURE CHECKEDBY: APPROVEDBY: DATE: 2023/2/14 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com Contents ltemDescription 1.---------------------------------------------------------------规格表 2.---------------------------------------------------------------成品图 3.---------------------------------------------------------------测试报告 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4 栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19 号都市智谷1 栋 16 层 01 电话 : 0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 1 ． 1 规格表 : 产品主要技术参数 主要技术指标 Main technicalspecifications 频率范围 （MHZ） 2400 -25 00 /5150-5850 Frequency Range (MHZ) 240 0- 250 0/5150-5850 特性阻抗(Ω ) 50Impedance(Ω)50 峰值增益(dBi) 2.5Gain(dBi)2.5 输出电压 驻波比 ≤2. 2MaxVSWR≤2. 2Max 电缆长度 （mm） 30 0±20Line LLength30 0±20 电缆规格 RG174 Cable specification RG174 极化方式 垂直/水平PolarizationVerticaland horizontal 连接方式 ConnectorType 物理性能PhysicalProperties 天线本体材料 ABSAntennaBaseABS 工作温度 -20°C~+50°COperatingTemp-20°C~+50°C 湿度Humidity95%~100%RH Humidity Humidity95%~100%RH 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4 栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19 号都市智谷1 栋 16 层 01 电话 : 0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 2．成品图 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 3.测试报告 3.1 ：网络分析仪测试 TypicalVSWR 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 3.2.暗室2D,3DRaditationPattern 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com PassiveTestFor2.4G FreqEffiEffiGainGainUHISDHISMaxMin Dire ctiv ity Beamw idth AttHAttV (MHz)(%)(dB) (dBi ) (dBd ) (%)(%)(dB)(dB) (dBi ) (3dB)(dB)(dB) 230056.31-2.492.510.3625.54530.7632.51-15.595.01045.5845.42 235058.07-2.362.440.2925.47732.5892.44-13.844.8045.545.31 240057.27-2.422.330.1824.05633.2162.33-13.664.75045.9745.77 245054.91-2.62.20.0522.51332.3932.2-12.154.81045.5445.4 250057.49-2.42.380.2324.2733.2182.38-12.194.79045.8845.75 255056.94-2.452.280.1326.03730.9012.28-18.664.72045.6545.5 260057.23-2.422.20.0527.92629.3042.2-16.394.62045.9545.8 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com PassiveTestFor5.8G FreqEffiEffiGainGainUHISDHISMaxMinDirectivityBeamwidthAttHAttV (MHz)(%)(dB)(dBi)(dBd)(%)(%)(dB)(dB)(dBi)(3dB)(dB)(dB) 515018.62-7.3-3.3-5.4500-3.3-31.437.33049.6149.76 516018.57-7.31-3.17-5.3200-3.17-30.297.313049.5649.97 517017.2-7.64-3.44-5.5900-3.44-29.637.643049.4449.75 518018.01-7.45-3.24-5.3900-3.24-29.717.453049.4849.83 519019.74-7.05-2.85-500-2.85-29.797.053049.5349.84 520019.19-7.17-2.95-5.100-2.95-30.897.173049.6349.96 521020.37-6.91-2.64-4.7900-2.64-30.236.913049.8950.14 522019.77-7.04-2.72-4.8700-2.72-28.947.043049.6549.96 523020.45-6.89-2.53-4.6800-2.53-27.796.893050.150.4 524022.65-6.45-2.07-4.2200-2.07-26.766.453049.7949.97 525022.19-6.54-2.16-4.3100-2.16-27.186.543049.7349.93 526022.22-6.53-2.17-4.3200-2.17-27.876.533049.9850.11 527022.2-6.54-2.16-4.3100-2.16-27.526.543049.9449.97 528023.58-6.27-1.85-400-1.85-26.116.273049.9149.96 529022.42-6.49-1.99-4.1400-1.99-25.086.493050.0350.03 530026.85-5.71-1.15-3.300-1.15-23.485.713050.2550.17 531022.92-6.4-1.85-400-1.85-24.016.43049.9249.93 532025.46-5.94-1.42-3.5700-1.42-23.815.944550.7550.61 533026.81-5.72-1.23-3.3800-1.23-23.575.724550.0149.93 534026.08-5.84-1.34-3.4900-1.34-23.55.844550.3850.29 535028.97-5.38-0.82-2.9700-0.82-22.295.384550.4750.32 536028.84-5.4-0.8-2.9500-0.8-21.855.43050.2850.15 537026.07-5.84-1.19-3.3400-1.19-23.445.844550.5350.38 538028.55-5.44-0.79-2.9400-0.79-23.745.444550.3950.29 539028.07-5.52-0.87-3.0200-0.87-23.585.524550.2650.1 540028.11-5.51-0.81-2.9600-0.81-22.475.514550.7550.75 541032.42-4.89-0.14-2.2900-0.14-20.944.893050.4850.28 542030.91-5.1-0.29-2.4400-0.29-21.095.13050.450.4 543027.93-5.54-0.7-2.8500-0.7-225.543050.0750.04 544028.85-5.4-0.53-2.6800-0.53-22.825.43050.0449.98 545027.86-5.55-0.67-2.8200-0.67-23.225.553049.9949.99 546027.98-5.53-0.65-2.800-0.65-22.555.533050.1850.19 547029.19-5.35-0.51-2.6600-0.51-21.65.353050.2450.2 548027.4-5.62-0.79-2.9400-0.79-22.135.623050.2850.4 549031.25-5.05-0.18-2.3300-0.18-21.955.053050.2750.26 深圳市晟达通讯设备有限公司 深圳地址：深圳市龙岗区爱联社区嶂背创业四路汉光科技园4栋 东莞地址：东莞凤岗镇金凤凰工业区金鹏路19号都市智谷1栋16层01 电话:0755-89985492 传真：0755-89916753 网址：www.szsdtx.com 550028.54-5.45-0.52-2.6700-0.52-22.915.453050.1850.21 551028.04-5.52-0.57-2.7200-0.57-23.755.523050.1750.22 552029.05-5.37-0.43-2.5800-0.43-25.085.373050.4450.48 553030.14-5.21-0.29-2.4400-0.29-27.765.213050.2950.31 554029.99-5.23-0.32-2.4700-0.32-31.365.233050.4650.42 555032.59-4.870.07-2.08000.07-32.774.873050.3850.52 556030.28-5.19-0.22-2.3700-0.22-30.35.193050.8150.62 557030.17-5.2-0.22-2.3700-0.22-28.085.23050.5150.68 558032.42-4.890.11-2.04000.11-26.344.89305150.75 559031.14-5.07-0.04-2.1900-0.04-25.335.073050.3250.36 560032.9-4.830.2-1.95000.2-23.974.833050.5650.48 561030.9-5.1-0.07-2.2200-0.07-23.095.13050.3850.34 562031.05-5.08-0.04-2.1900-0.04-21.995.083050.6250.44 563032.04-4.940.14-2.01000.14-21.364.943050.5250.4 564034.74-4.590.55-1.…

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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: 55- Inch Outdoor Wall Mounted Non-Touch Digital Signage FCC ID: 2ASCB-DW055HLB Trademark: N/A Model Number: DW055HLB, ADW05 Prepared For: D2G Group LLC Address: 81 Commerce Drive, Fall River, Massachusetts 02720, United States Manufacturer: GUANGZHOU YOUGUANG OPTOELECTRONICS CO., LTD. Address: No.75, Pacific Ind. Zone, Xingtang Town, Zengcheng, Guangzhou,511340 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: Jul . 09 , 202 4 Sample tested Date: Jul . 09 , 202 4 to Jul . 23, 2024 Issue Date: Jul . 23 , 202 4 Report No.: CTB240723088RFX Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Results PASS Remark: This is WIFI-2.4GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240723088RFX Report Tel: 4008-707- 283 Web: http://www.ctb-lab.net Page 2 of 81 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................... 3 2. TEST SUMMARY ................................................................... 4 3. MEASUREMENT UNCERTAINTY ..................................................... 5 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 6 4.1 Product Information .................................................................... 6 4.2 Test Setup Configuration ............................................................... 6 4.3 Support Equipment .................................................................... 6 4.4 Channel List .......................................................................... 7 4.5 Test Mode ............................................................................ 7 4.6 Test Environment ...................................................................... 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................... 8 5.1 Test Facility ........................................................................... 8 5.2 Test Instrument Used .................................................................. 8 6. AC POWER LINE CONDUCTED EMISSION ............................................ 11 6.1 Block Diagram Of Test Setup .......................................................... 11 6.2 Limit ................................................................................ 11 6.3 Test procedure ....................................................................... 11 6.4 Test Result .......................................................................... 13 7. RADIATED SPURIOUS EMISSION ................................................... 15 7.1 Block Diagram Of Test Setup .......................................................... 15 7.2 Limit ................................................................................ 15 7.3 Test procedure ....................................................................... 16 7.4 Test Result .......................................................................... 17 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 49 8.1 Block Diagram Of Test Setup .......................................................... 49 8.2 Limit ................................................................................ 49 8.3 Test procedure ....................................................................... 49 8.4 Test Result .......................................................................... 50 9. COUDUCTED OUTPUT POWER ..................................................... 62 9.1 Block Diagram Of Test Setup .......................................................... 62 9.2 Limit ................................................................................ 62 9.3 Test procedure ....................................................................... 62 9.4 Test Result .......................................................................... 62 10. 6DB OCCUPIED BANDWIDTH ....................................................... 63 10.1 Block Diagram Of Test Setup ......................................................... 63 10.2 Limit ............................................................................... 63 10.3 Test procedure ...................................................................... 63 10.4 Test Result ......................................................................... 64 11. POWER SPECTRAL DENSITY ...................................................... 71 11.1 Block Diagram Of Test Setup ......................................................... 71 11.2 Limit ............................................................................... 71 11.3 Test procedure ...................................................................... 71 11.4 Test Result ......................................................................... 72 12. ANTENNA REQUIREMENT ......................................................... 79 13. EUT TEST SETUP PHOTOGRAPHS .................................................. 80 (Note: N/A means not applicable) Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240723088RFX Report Tel: …

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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: DW055HLB 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