2AJOF-ALLCOMMAllcomm Full-Duplex Intercom System

FCC Warning This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any inte rference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interferenceto radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ·Reorient or relocate the receiving antenna. ·Increase the separation between the equipment and receiver. ·Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. ·Consult the dealer or an experienced radio/TV technician for help. Specific Absorption Rate (SAR) information This device meets the government's requirements for FCC exposure limits set forth for an uncontrolled environment. This device was tested for typical head operations with kept 0mm from the head. To maintain compliance with FCC RF exposure requirements, use accessories that maintain an 0mm separation distance between the user's head. The use of accessories that do not satisfy these requirements may not comply with FCC RF exposure requirements, and should be avoided.

Page 1 of 2 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Appendix B Detailed Test Results 2.4GHz for Head Page 2 of 2 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Date:2026/9/17 Test Laboratory: LCS-SAR Lab 2.4G MSK 78CH Head Cheek DUT: Allcomm Full-Duplex Intercom System ; Type: 290-0010 ; Serial: C260625002-1 Communication System: UID 0, 2.4GHz (0); Frequency: 2480 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2480 MHz; σ = 1.886 S/m; ε r = 38.265; ρ = 1000 kg/m 3 Phantom section: Left Section DASY Configuration:  Probe: EX3DV4 - SN3805; ConvF(7.38, 7.38, 7.38); Calibrated: 2026/3/2;  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE3 Sn373; Calibrated: 2026/3/2  Phantom: SAM v5.0; Type: SAM; Serial: 1850  DASY52 52.8.8(1222); SEMCAD X 14.6.10(7331) Configuration/Head /Area Scan (8x8x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 0.487 W/kg Configuration/Head /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 6.526 V/m; Power Drift = 0.08 dB Peak SAR (extrapolated) = 0.603 W/kg SAR(1 g) = 0.318 W/kg; SAR(10 g) = 0.187 W/kg Maximum value of SAR (measured) = 0.536 W/kg

Page 1 of 2 FCC ID:2AJOF-ALLCOMM Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, City, Guangdong China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Test Setup Photos of the EUT Test Setup Photo(s) of Radiated Emissions Measurement Fig. 1 Fig. 2 Page 2 of 2 FCC ID:2AJOF-ALLCOMM Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, City, Guangdong China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Test Setup Photo(s) of Conducted Emissions Measurement Fig. 3

Page 1 of 5 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Appendix D Photographs 1. SAR measurement System 2. Photographs of Tissue Simulate Liquid 3. Photographs of EUT test position 4. EUT Constructional Details Page 2 of 5 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com 1. SAR measurement System Page 3 of 5 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com 2. Photographs of Tissue Simulate Liquid Photo 1: Tissue Simulant Liquid for Head 700-3000MHz Page 4 of 5 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com 3. Photographs of EUT test position Photo 2: Head cheek Page 5 of 5 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com 4. EUT Constructional Details Photo 3: Photo View Photo 4: Photo View

Page 1 of 36 FCC ID: 2AJOF-ALLCOMM Report No.: LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, City, Guangdong China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC TEST REPORT FOR Hunan GM Innovation Technology Co., Ltd Allcomm Full-Duplex Intercom System Test Model: 290-0010 Additional Model No.: 290-0014,290-0015,290-0016,290-0017,290-0025,290-0026,290-0027 Prepared for : Hunan GM Innovation Technology Co., Ltd Address : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Prepared by : Guangzhou LCS Compliance Testing Laboratory Ltd. Address : No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel : (+86) 020-39166689 Fax : (+86) 020-39166619 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : June 25, 2026 Number of tested samples : 2 Sample No. : C260625002-1, C260625002-2 Serial number : Prototype Date of Test : June 25, 2026 ~ July 09, 2026 Date of Report : July 10, 2026 Page 2 of 36 FCC ID: 2AJOF-ALLCOMM Report No.: LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, City, Guangdong China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC TEST REPORT FCC CFR 47 PART 15 C (15.247) Report Reference No. ................. : LCSC05196013EA Date of Issue ................................... : July 10, 2026 Testing Laboratory Name ............ : Guangzhou LCS Compliance Testing Laboratory Ltd. Address ........................................... : No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Testing Location/ Procedure ........... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name .......................... : Hunan GM Innovation Technology Co., Ltd Address ........................................... : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Test Specification Standard .......................................... : FCC CFR 47 PART 15 C (15.247) Test Report Form No. ..................... : TRF-4-E-148 A/0 TRF Originator ................................ : Guangzhou LCS Compliance Testing Laboratory Ltd. Master TRF ..................................... : Dated 2011-03 Guangzhou LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Guangzhou LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Guangzhou LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test Item Description. .................. : Allcomm Full-Duplex Intercom System Trade Mark ...................................... : N/A Test Model ...................................... : 290-0010 Ratings ............................................ : Please Refer to Page 6 Result ........................................... : PASS Compiled by: Supervised by: Approved by: Lifeng Le / Administrator Justin Zhu/ Technique Director Gavin Liang/ Manager Page 3 of 36 FCC ID: 2AJOF-ALLCOMM Report No.: LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, City, Guangdong China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC -- TEST REPORT Test Result PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Test Report No. : LCSC05196013EA July 10, 2026 Date of issue Test Model.............................. : 290-0010 EUT...................................... : Allcomm Full-Duplex Intercom System Applicant............................... : Hunan GM Innovation Technology Co., Ltd Address................................... : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Telephone............................... : / Fax.......................................... : / Manufacturer......................... : Hunan GM Innovation Technology Co., Ltd Address................................... : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Telephone............................... : / Fax.......................................... : / Factory ................................. : Hunan GM Innovation Technology Co., Ltd Address ................................. : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Telephone............................... : / Fax.......................................... : / Page 4 of 36 FCC ID: 2AJOF-ALLCOMM Report No.: LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, City, Guangdong China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Revision History Report Version Issue Date Revision Content Revised By 000 July 10, 2026 Initial Issue --- Page 5 of 36 FCC ID: 2AJOF-ALLCOMM Report No.: LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1,Qianfeng North Road, Shiqi, Panyu District, Guangzhou, City, Guangdong China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com TABLE OF CONTENTS Description Page 1. GENERAL INFORMATION ....................…

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Page 1 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Appendix A RF Test Data for 2.4G (Conducted Measurement) Product Name: Allcomm Full-Duplex Intercom System Test Model: 290-0010 Environmental Conditions Temperature: 23.5C Relative Humidity: 52.9% ATM Pressure: 100.0 kPa Test Engineer: Zhao Xing Hai Supervised by: Fengliu Tang Page 2 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com A.1 -20dB Bandwidth Condition Mode Frequency (MHz) Antenna -20 dB Bandwidth (MHz) Limit -20 dB Bandwidth (MHz) Verdict NVNT 2.4G 2401.575 Ant1 0.4068 0 Pass NVNT 2.4G 2435.575 Ant1 0.3994 0 Pass NVNT 2.4G 2476.575 Ant1 0.4135 0 Pass Page 3 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com -20dB Bandwidth NVNT 2.4G 2401.575MHz Ant1 -20dB Bandwidth NVNT 2.4G 2435.575MHz Ant1 Page 4 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com -20dB Bandwidth NVNT 2.4G 2476.575MHz Ant1 Page 5 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com A.2 Maximum Peak Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Limit Conducted(dBm) Verdict NVNT 2.4G 2401.575 Ant1 14.07 30 Pass NVNT 2.4G 2435.575 Ant1 14.17 30 Pass NVNT 2.4G 2476.575 Ant1 15.01 30 Pass Page 6 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Peak Power NVNT 2.4G 2401.575MHz Ant1 Peak Power NVNT 2.4G 2435.575MHz Ant1 Page 7 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Peak Power NVNT 2.4G 2476.575MHz Ant1 Page 8 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com A.3 Carrier Frequencies Separation Condition Mode Antenna Hopping Freq1 (MHz) Hopping Freq2 (MHz) HFS (MHz) Limit (MHz) Verdict NVNT 2.4G Ant1 2435.874 2436.696 0.822 0.276 Pass CFS NVNT 2.4G 2401.575MHz Ant1 Page 9 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com A.4 Dwell Time Condition Mode Frequency (MHz) Antenna Pulse Time (ms) Total Dwell Time (ms) Burst Count Period Time (ms) Limit (ms) Verdict NVNT 2.4G 2401.575 Ant1 3.078 246.24 80 31600 400 Pass Dwell NVNT 2.4G 2401.575MHz Ant1 One Burst Page 10 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Dwell NVNT 2.4G 2401.575MHz Ant1 Accumulated Page 11 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com A.5 Number of Hopping Channel Condition Mode Antenna Hopping Number Limit Verdict NVNT 2.4G Ant1 79 15 Pass Hopping No. NVNT 2.4G 2401.575MHz Ant1 Page 12 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com A.6 Band Edge Condition Mode Frequency (MHz) Antenna Hopping Mode Max Value (dBc) Limit (dBc) Verdict NVNT 2.4G 2401.575 Ant1 No-Hopping -59.15 -20 Pass NVNT 2.4G 2476.575 Ant1 No-Hopping -69.21 -20 Pass Page 13 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Band Edge NVNT 2.4G 2401.575MHz Ant1 No-Hopping Ref Band Edge NVNT 2.4G 2401.575MHz Ant1 No-Hopping Emission Page 14 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC05196013EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Band Edge NVNT 2.4G 2476.575MHz Ant1 No-Hopping Ref Band Edge NVNT 2.4G 2476.575MHz Ant1 No-Hopping Emission Page 15 of 27 FCC ID: 2AJOF-ALLCOMM Report No.:LCSC051960…

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ShenzhenDEWEIMACommunicationEquipmentCo.Ltd SPECIFICATION SHEETFORAPPROVAL CUSTOMERNAME ( 客户名称 ) CUSTOMERP/N ( 客户料号 ) PARTNAME (品名) BTA100Antenna DWMP/N (料号) APPROVALREV. 版次 DWM-V1.0 CONTRACTORDATE：2026-7-8 QA CHECKED ME CHECKED RF CHECKED MANAGER CHECKED CUSTOMERDATE ： ApprovedByCheckedByPreparedBy 高春彦 陈裕松 覃球铭 余奇学 ProductSpecification P/N:Rev.: A Page: Content Content..............................................................................................................................................................2 1.ProductApplication/ 产品应用 .....................................................................................................................3 2.Thetestenvironment,equipment/ 测试环境、设备 .................................................................................3-5 3.TechnologyParameters/技术参数.............................................................................................................6-9 4.EnvironmentalPerformance/环境性能......................................................................................................10 5.UsagePrecaution/ 使用禁忌或注意事项 ....................................................................................................11 ProductSpecification P/N:Rev.: A Page: 1.ProductApplication/产品应用 该天线产品用于2.4G信号的传输。 2.Thetestenvironment,equipment/测试环境、设备 Item 项目 Description 项目描述 TestCondition/测试条件Requirement/规格要求 2.1 Passivetesting /无源测试 TheVSWRmeasurementdevicesare connectedinsequence:Agilent5071B NetworkAnalyzer→measurementCable→ Customer-providingDevices. （ VSWR 测量 装置依次连接：网络分析仪测量电缆 agilent5071B→→ 客户提供终端。） 驻波比： 2400-2500MHz<2 阻抗： 50oh Testequipment/ 测试设备 Item 项目 Description 项目描述 TestCondition/测试条件Requirement/规格要求 2.2 增益及 效率测试 Followpictureshowsthe measurementconditionofthe antennabeenputonthe measurementdevice,whichis usedforallmeasurementof electricperformances. （以下图片显示的天线的测量条 件被放在测量装置，它是用于所有 的测量电性能。） 天线增益： 2400-2500MHz:2dBi 天线效率： 2400-2500MHz>30% ProductSpecification P/N:Rev.: A Page: 2.3 Microwave Anechoic （Satimo&ETS ） / 微波暗室 Testequipment/测试设备 ProductSpecification P/N:Rev.: A Page: 2.4 CMW500 Agilent5071B AgilentE4405B Agilent8960 ProductSpecification P/N:Rev.: A Page: 3.TechnologyParameters/技术参数 FrequencyRange/频率范围：2400-2500MHz OperatingHumidity/工作湿度：85%R.H.MAX TemperatureRating/ 温度范围： -40 °C～ +85 °C 3.1Thematchingtestvalue/ 调试匹配值 ElementValue E1(0402) E2(0402) E3(0402) E4(0402) ProductSpecification P/N:Rev.: A Page: 3.2VSWR/驻波比: 3.3.EfficiencyAndGain/效率和增益 Frequency 频率(MHz) Gain 增益(dBi) MinGain 最小增益 (dBi) COGain 主极化最 大增益 (dBi) CPGain 交叉极化 最大增益 (dBi) Efficiency 效率(dB) Efficiency 效率(%) 2400.005.58-14.912.913.80-2.8252.30 2410.005.42-16.122.943.59-2.9251.03 2420.005.17-17.312.873.30-3.0549.54 2430.004.79-18.542.682.85-3.1448.54 2440.004.36-19.612.482.31-3.3146.70 2450.004.07-19.942.421.98-3.4045.66 2460.003.80-20.102.291.70-3.5344.33 2470.003.40-20.172.001.33-3.7741.97 2480.003.06-20.041.761.01-3.8840.95 2490.002.61-20.351.360.52-4.1338.64 2500.002.43-20.121.270.27-4.0939.03 3.42D&3DPHOTO ProductSpecification P/N:Rev.: A Page: ProductSpecification P/N:Rev.: A Page: ProductSpecification P/N:Rev.: A Page: 4.Productphoto/产品实物图片 ProductSpecification P/N:Rev.: A Page: 5.EnvironmentalPerformance/ 环境性能 Item 项目 Description 项目描述 TestCondition 测试条件 Requirement 规格要求 5.1 Highand low temperatur etest 高低温测试 Temp.:-40 °C Time:48hours Temp.:85 °C Time:48hours 1.Novisibledamage. （无可见损伤） 2.Theelectricperformances reachthestandard. （电气性能达标） Item 项目 Description 项目描述 TestCondition测试条件Requirement规格要求 5.2 SaltSpray 盐雾测试 5±0.1%Nadsaltfog PHValue:6.5-7.2 Temp:35±1°C Time:24hours 1.Nocolorchange. （无颜色变化） 2.theappearanceofthe antennadoesnotflakeoff. （天线无外观脱落） 6.UsagePrecaution/使用禁忌或注意事项 No Items项目Matter事项 6.1 Precautions 禁忌 a)Pleaseavoidthecleaningofthisproduct a)请避免清洁此产品 No Items项目Matter事项 6.2 Stockpile condition 存储条件 Usethisproductwithin6monthsafterreceipt Condition:Temp:5~30°CHumidity:≤70% 有效期：请在产品接收后的6个月内使用 存储环境:温度:5~30°C;湿度:≤70% ProductSpecification P/N:Rev.: A Page:

Page 1 of 41 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E TRF-4- E-102 A/0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity SAR TEST REPORT For Hunan GM Innovation Technology Co., Ltd Allcomm Full-Duplex Intercom System Test Model: 290-0010 Additional Model No.: 290-0014,290-0015,290-0016,290-0017,290-0025, 290-0026,290-0027 Prepared for : Hunan GM Innovation Technology Co., Ltd Address : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : September 16, 2026 Number of tested samples Sample number : : 1 C260625002-1 Serial number : Prototype Date of Test : September 16, 2026 ~ September 18, 2026 Date of Report : September 18, 2026 Page 2 of 41 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E TRF-4- E-102 A/0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity SAR TEST REPORT Report Reference No. ................. : LCSA05196104E Date Of Issue ............................. : September 18, 2026 Testing Laboratory Name ........... : Shenzhen LCS Compliance Testing Laboratory Ltd. Address ......................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Testing Location/ Procedure ......... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name .....................: Hunan GM Innovation Technology Co., Ltd Address ...................................... : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Test Specification: Standard ..................................... : FCC 47CFR §2.1093 IEEE C95.1-2019 IEEE 1528-2013 TRF Originator ............................ : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF ................................ : Dated 2014-09 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes noresponsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test Item Description. ..............: Allcomm Full-Duplex Intercom System Trade Mark ................................. : N/A Model/Type Reference ............... : 290-0010 Ratings ....................................... : Please Refer to Page 10 Result .......................................: Positive Compiled by: Supervised by: Approved by: Jay Zhan/ Administrator Kevin Huang/ RF Manager Gavin Liang/ Manager Page 3 of 41 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E TRF-4- E-102 A/0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity SAR -- TEST REPORT Test Result Positive The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Test Report No. : LCSA05196104E September 18, 2026 Date of issue EUT...................................... : Allcomm Full-Duplex Intercom System Type/Model .......................... : 290-0010 Applicant.............................. : Hunan GM Innovation Technology Co., Ltd Address.................................. : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Telephone.............................. : / Fax......................................... : / Manufacturer....................... : Hunan GM Innovation Technology Co., Ltd Address.................................. : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Telephone.............................. : / Fax......................................... : / Factory.................................. : Hunan GM Innovation Technology Co., Ltd Address.................................. : 2601 26th Floor, Building 10, Zone B, Greenland V Island, Yuehu Street, kaifu District, Changsha city. Hunan Province, China Telephone.............................. : / Fax......................................... : / Page 4 of 41 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E TRF-4- E-102 A/0 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Revison History Revision Issue Date Revision Content Revised By 000 September 18, 2026 Initial Issue --- Page 5 of 41 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E TRF-4- E-102 A/0…

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Page 1 of 19 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China. Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Appendix C Calibration certificate 1. Dipole D2450V2-SN 808 2. DAE DAE3-SN 373 3. Probe EX3DV4-SN 3805 Page 2 of 19 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China. Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Page 3 of 19 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China. Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Page 4 of 19 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China. Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Page 5 of 19 FCC ID: 2AJOF-ALLCOMM Report No.: LCSA05196104E Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China. Tel: +(86) 0755-82591330 | E-…

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