2AAP8-VIFA122Portable Bluetooth Speaker

2024-01-22

Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 1 of 11 AppendixI: Photos of the EUT Product Name : Portable Bluetooth Speaker Model Number : VIFA122 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 2 of 11 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 3 of 11 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 4 of 11

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Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 5 of 11 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 6 of 11 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 7 of 11 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 8 of 11 Bluetooth antenna Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 9 of 11 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 10 of 11 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23121816-1E Page 11 of 11 END

Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23121816-2E04 TRF No.: RT-4-E-02-601 FCC SAR Test Report Ver.1.1 Page 1 of 30 FCC AND ISED SAR TEST REPORT Applicant : Guoguang Electric Co.,Ltd Address of Applicant : No.8 Jinghu Road, Xinya Street, Huadu Reg, Guangzhou, China Manufacturer : Guoguang Electric Co.,Ltd Address of Manufacturer : No.8 Jinghu Road, Xinya Street, Huadu Reg, Guangzhou, China Equipment under Test : Portable Bluetooth Speaker Model No. : VIFA122 FCC ID : 2AAP8-VIFA122 Test Standard(s) : Test Standard Used: IEEE Std. 1528-2013; IEC/IEEE 62209-1528:2020 FCC Rules and Regulations: 47 CFR § 2.1093 ISED Rules and Regulations: RSS-102 Issue5, Mar. 2015 Test Procedure Used: KDB447498 D01 v06, KDB 865664 D01 v01r04, KDB 865664 D02 v01r02 Report No. : DDT-RE23121816-2E04 Issue Date : 2024/01/18 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Address of Laboratory : Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23121816-2E04 TRF No.: RT-4-E-02-601 FCC SAR Test Report Ver.1.1 Page 2 of 30 Table of Contents 1. Summary of test results ...................................................................................................... 6 1.1. Report SAR results ............................................................................................................. 6 1.2. RF exposure limits .............................................................................................................. 6 2. General test information ...................................................................................................... 7 2.1. Description of EUT .............................................................................................................. 7 2.2. RF channel information ....................................................................................................... 7 2.3. Accessories of EUT ............................................................................................................. 8 2.4. Assistant equipment used for test ....................................................................................... 8 2.5. Block diagram of EUT configuration for test ....................................................................... 8 2.6. Test environment conditions ............................................................................................... 9 2.7. Test laboratory .................................................................................................................... 9 3. SAR measurements system configuration ........................................................................ 10 3.1. The SAR measurement system ........................................................................................ 10 3.2. Isotropic E-field probe EX3DV4 ........................................................................................ 11 3.3. SAM twin phantom ............................................................................................................ 11 3.4. ELI phantom ...................................................................................................................... 12 3.5. Data acquisition electronics (DAE) ................................................................................... 12 3.6. Device holder for transmitters ........................................................................................... 13 4. Measurement procedure ................................................................................................... 14 4.1. Scanning procedure .......................................................................................................... 14 5. Description of test position ................................................................................................ 16 5.1. Body-worn accessory configurations ................................................................................ 16 5.2. Extremity exposure configurations .................................................................................... 17 6. RF exposure conditions .................................................................................................... 18 6.1. EUT sides and antenna position ....................................................................................... 18 6.2. Standalone SAR test exclusion considerations ................................................................ 18 6.3. Test sides .......................................................................................................................... 20 7. SAR system verification procedure ................................................................................... 21 7.1. Tissue simulate liquid ........................................................................................................ 21 7.1.1. Target dielectric properties of head tissue-equivalent material ........................................ 21 7.1.2. Measurement for tissue simulate liquid ............................................................................ 21 7.2. SAR system validation ...................................................................................................... 23 7.2.1. Justification for extended SAR dipole calibrations ............................................................ 24 7.2.2. Validation test setup photograph ...................................................................................... 24 7.2.3. Summary system validation results .................................................................................. 25 7.2.4. Detailed system validation results ..................................................................................... 25 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23121816-2E04 TRF No.: RT-4-E-02-601 FCC SAR Test Report Ver.1.1 Page 3 of 30 8. Equipmen…

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Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 1 of 3 Appendix A System Validation Plots Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 2 of 3 Table of Contents 1. D2450V2-SN: 904 Validation Plot ..................................................................................... 3 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 3 of 3 1. D2450V2-SN: 904 Validation Plot

Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 1 of 3 Appendix B Highest Test Plots Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 2 of 3 Table of Contents 1. BT Head-worn 0mm SAR ....................................................................................................... 3 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 3 of 3 1. BT Head-worn 0mm SAR

Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 1 of 30 Appendix C Calibration Certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 2 of 30 Table of Contents 1. D2450V2-SN: 904 Calibration certification ............................................................................. 3 2. D5GHzV2-SN: 1148 Calibration certification .......................................................................... 9 3. DAE4-SN: 1366 Calibration certification............................................................................... 19 4. EX3DV4-SN: 3906 Calibration certification .......................................................................... 22 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 3 of 30 1. D2450V2-SN: 904 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 4 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 5 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 6 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 7 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 8 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 9 of 30 2. D5GHzV2-SN: 1148 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 10 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 11 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 12 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 13 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 14 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 15 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 16 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 17 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 18 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 19 of 30 3. DAE4-SN: 1366 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 20 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 21 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 22 of 30 4. EX3DV4-SN: 3906 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 23 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 24 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 25 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 26 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 27 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 28 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 29 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 30 of 30

Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 1 of 94 FCC CERTIFICATION TEST REPORT Applicant : Guoguang Electric Co.,Ltd Address of Applicant : No.8 Jinghu Road, Xinya Street, Huadu Reg, Guangzhou, China Manufacturer : Guoguang Electric Co.,Ltd Address of Manufacturer : No.8 Jinghu Road, Xinya Street, Huadu Reg, Guangzhou, China Equipment under Test : Portable Bluetooth Speaker Model No. : VIFA122 FCC ID : 2AAP8-VIFA122 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, ANSI C63.10:2013 Report No. : DDT-RE23121816-2E01 Issue Date : 2024/1/9 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Address of Laboratory : Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 2 of 94 Table of Contents Test report declares............................................................................................................4 1. Summary of Test Results .................................................................................................... 7 2. General Test Information .................................................................................................... 8 2.1. Description of EUT .............................................................................................................. 8 2.2. Accessories of EUT ............................................................................................................. 9 2.3. Assistant equipment used for test ....................................................................................... 9 2.4. Block diagram of EUT configuration for test ....................................................................... 9 2.5. Deviations of test standard................................................................................................ 10 2.6. Test environment conditions ............................................................................................. 10 2.7. Test laboratory .................................................................................................................. 10 2.8. Measurement uncertainty .................................................................................................. 11 3. Equipment Used During Conductive Test ......................................................................... 12 4. 20 dB Bandwidth ............................................................................................................... 13 4.1. Block diagram of test setup ............................................................................................... 13 4.2. Limits ................................................................................................................................. 13 4.3. Test procedure .................................................................................................................. 13 4.4. Test result .......................................................................................................................... 14 4.5. Test graphs ....................................................................................................................... 15 5. 99% Bandwidth ................................................................................................................. 18 5.1. Block diagram of test setup ............................................................................................... 18 5.2. Limits ................................................................................................................................. 18 5.3. Test procedure .................................................................................................................. 18 5.4. Test Result ........................................................................................................................ 19 5.5. Test Graphs ....................................................................................................................... 20 6. Maximum Peak Output Power .......................................................................................... 23 6.1. Block diagram of test setup ............................................................................................... 23 6.2. Limits ................................................................................................................................. 23 6.3. Test procedure .................................................................................................................. 23 6.4. Test Result ........................................................................................................................ 24 6.5. Test graphs ....................................................................................................................... 25 7. Carrier Frequency Separation ........................................................................................... 28 7.1. Block diagram of test setup ............................................................................................... 28 7.2. Limits ................................................................................................................................. 28 7.3. Test procedure .................................................................................................................. 28 7.4. Test result .......................................................................................................................... 29 7.5. Test graphs ....................................................................................................................... 30 8. Dwell Time ...........................................................................................................…

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Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 51 of 94 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 52 of 94 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 53 of 94 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 54 of 94 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 55 of 94 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 56 of 94 3DH5_Ant1_2402_0~Reference 3DH5_Ant1_2402_30~1000 3DH5_Ant1_2402_1000~26500 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 57 of 94 3DH5_Ant1_2441_0~Reference 3DH5_Ant1_2441_30~1000 3DH5_Ant1_2441_1000~26500 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 58 of 94 3DH5_Ant1_2480_0~Reference 3DH5_Ant1_2480_30~1000 3DH5_Ant1_2480_1000~26500 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 59 of 94 12. Radiated Emission 12.1. Test equipment Equipment Manufacturer Model No. Serial Number Due Date Cal. Interval ☒Radiation 3#Chamber EMI TEST RECEIVER R&S ESU26 100472 2024/04/22 1 Year PSA Series Spectrum Analyzer Agilent E4447A MY50180031 2024/04/22 1 Year Active Loop Antenna Schwarzbeck FMZB-1519 1519-038 2024/09/10 1 Year Trilog Broadband Antenna Schwarzbeck VULB 9163 01429 2024/07/11 1 Year Double Ridged Horn Antenna Schwarzbeck BBHA 9120 D 02468 2024/09/17 1 Year Broad Band Horn Antenna Schwarzbeck BBHA 9170 790 2024/04/25 1 Year Pre-amplifier COM-POWER PAM-118A 18040084 2024/07/14 1 Year Pre-amplifier COM-POWER PAM-840A 461369 2024/04/26 1 Year RE Cable N/A W23.02 CP1- X2 + W23.09 AP1-X8+ JCT26S-NJ- NJ-1.5M 4.5M+8M+1.5M 2024/04/20 1 Year RF Cable Yuhu JCTB810-NJ- NJ-9M+ ZT26S-SMAJ- SMAJ-1M 21123964 2024/04/22 1 Year Band Reject Filter (2400-2500 MHz) REBES BRM50702 G555 N/A N/A Test Software Tonscend JS32-RE V 5.0.0.1 N/A N/A 12.2. Block diagram of test setup In 3 m Anechoic Chamber, test setup diagram for 9 kHz- 30 MHz: Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 60 of 94 In 3 m Anechoic Chamber, test setup diagram for 30 MHz - 1 GHz: In 3 m Anechoic Chamber, test setup diagram for frequency above 1 GHz: Note: Install an appropriate filter at the input of the measurement system power amplifier. This filter can attenuate the fundamental emission of the EUT and allow an accurate measurement of the associated harmonics and spurious emissions. The filter had been characterized, and the attenuation loss factors had been accounted for in the measurement results. Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 61 of 94 12.3. Limit (1) FCC 15.205 Restricted frequency band MHz MHz MHz GHz 0.090-0.110 16.42-16.423 399.9-410 4.5-5.15 1 0.495-0.505 16.69475-16.69525 608-614 5.35-5.46 2.1735-2.1905 16.80425-16.80475 960-1240 7.25-7.75 4.125-4.128 25.5-25.67 1300-1427 8.025-8.5 4.1772&4.17775 37.5-38.25 1435-1626.5 9.0-9.2 4.2072&4.20775 73-74.6 1645.5-1646.5 9.3-9.5 6.215-6.218 74.8-75.2 1660-1710 10.6-12.7 6.26775-6.26825 108-121.94 1718.8-1722.2 13.25-13.4 6.31175-6.31225 123-138 2200-2300 14.47-14.5 8.291-8.294 149.9-150.05 2310-2390 15.35-16.2 8.362-8.366 156.52475-156.52525 2483.5-2500 17.7-21.4 8.37625-8.38675 156.7-156.9 2690-2900 22.01-23.12 8.41425-8.41475 162.0125-167.17 3260-3267 23.6-24.0 12.29-12.293 167.72-173.2 3332-3339 31.2-31.8 12.51975-12.52025 240-285 3345.8-3358 36.43-36.5 12.57675-12.57725 322-335.4 3600-4400 ( 2 ) 13.36-13.41 1 Until February 1, 1999, this restricted band shall be 0.490-0.510 MHz 2 Above 38.6 RSS-Gen section 8.10 Restricted frequency bands* MHz MHz MHz GHz 0.090-0.110 12.51975-12.52025 240-285 3.5-4.4 0.495-0.505 12.57675-12.57725 322-335.4 4.5-5.15 2.1735-2.1905 13.36-13.41 399.9-410 5.35-5.46 3.020-3.026 16.42-16.423 608-614 7.25-7.75 4.125-4.128 16.69475-16.69525 960-1427 8.025-8.5 4.1772&4.17775 16.80425-16.80475 1435-1626.5 9.0-9.2 4.2072&4.20775 25.5-25.67 1645.5-1646.5 9.3-9.5 5.677-5.683 37.5-38.25 1660-1710 10.6-12.7 6.215-6.218 73-74.6 1718.8-1722.2 13.25-13.4 6.26775-6.26825 74.8-75.2 2200-2300 14.47-14.5 6.31175-6.31225 108-138 2310-2390 15.35-16.2 8.291-8.294 149.9-150.05 2483.5-2500 17.7-21.4 8.362-8.366 156.52475-156.52525 2655-2900 22.01-23.12 Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 62 of 94 8.37625-8.38675 156.7-156.9 3260-3267 23.6-24.0 8.41425-8.41475 162.0125-167.17 3332-3339 31.2-31.8 12.29-12.293 167.72-173.2 3345.8-3358 36.43-36.5 Above 38.6 * Certain frequency bands listed in table and in bands above 38.6 GHz are designated for licence- exempt applications. These frequency bands and the requirements that apply to related devices are set out in the 200 and 300 series of RSSs. (2) FCC 15.209 Limit & RSS-Gen …

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V e r s i o n : 2 0 2 2 . 0 8 . 2 2 Manufacture：Guoguang Electric Co.,Ltd (GGEC) Address：No.8 Jinghu Road, Xinya Street, Huadu Reg, Guangzhou, China Phone：0755-27474071 0769-88086190 P.2 客户 项目 天线型号 国光 小手雷PCB Antenna 整机尺寸 天线面积 参 数 要 求 频 段 2 4 0 0 M H z - 2 5 0 0 M H z 项 目 需 求 信 息 P.3 天线位置及尺寸 天线 P.4 H:XY E1:XZ E2:YZ 轴的定义 P.5 天线VSWR 一、无源数据 P.6 天线效率 P.7 天线场型图 P.8 天线场型图

Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 92 of 94 16. Test Setup Photograph Guangdong D ongdian Testing Servi ce Co., Ltd. R eport No.: DDT-RE23121816-2E01 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 93 of 94

Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 1 of 5 Appendix D Test setup photograph Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 2 of 5 Table of Contents 1. 2.4G Tissue Head-worn Photograph ...................................................................................... 3 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 3 of 5 1. 2.4G Tissue Head-worn Photograph TOP Side-0mm Bottom Side-0mm Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 4 of 5 Left Side-0mm Right Side-0mm Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE23121816-2E04 Page 5 of 5 Front side-0mm Back Side-0mm