2AAP8-VIFANORDIC3-2Portable Wireless Speaker

Guoguang Electric Co.,Ltd Date: 08/23/2022 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern: I, the undersigned, hereby authorize UL Verification Services Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Verification Services Inc. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing UL Verification Services Inc. as our representative, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the when requested; j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signed by: Company Name: Guoguang Electric Co.,Ltd Contact Name: Alan Song Address: No.8 Jinghu Road, Xinhua Street, Huadu Reg Guangzhou China

Guoguang Electric Co.,Ltd Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality FCC ID: 2AAP8-VIFANORDIC3-2 To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Theory of Operation 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. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards Company Name: Guoguang Electric Co.,Ltd Contact Name: Alan Song Address: No.8 Jinghu Road, Xinhua Street, Huadu Reg Guangzhou China Date:8/23/2022

Appendix I External Photographs Page 2 of 7 View of EUT-1 View of EUT-2 Page 3 of 7 View of EUT-3 View of EUT-4 Page 4 of 7 View of EUT-5 View of EUT-6 Page 5 of 7 View of EUT-7 View of EUT-8 Page 6 of 7 View of EUT-9 View of EUT-10 Page 7 of 7 View of EUT-11 View of EUT-12

2021_07_08 V i f a D e n m a r k A / S . S M E D E L A N D 7 , S M E D E L A N D , 2 6 0 0 , G L O S T R U P , D E N M A R K . 威 发 丹 麦 股 份 有 限 公 司 地 址 ： 丹 麦 格 洛 斯 楚 普 市 斯 摩 德 格 兰 斯 摩 德 格 兰 � 号 邮 编 ： D K - 2 6 0 0 . 中 国 制 造 T h i s d e v i c e c o m p l i e s w i t h p a r t 1 5 o f t h e F C C R u l e s . O p e r a t i o n i s s u b j e c t t o t h e f o l l o w i n g t w o c o n d i t i o n s : ( 1 ) T h i s d e v i c e m a y n o t c a u s e h a r m f u l i n t e r f e r e n c e , a n d ( 2 ) t h i s d e v i c e m u s t a c c e p t a n y i n t e r f e r e n c e r e c e i v e d , i n c l u d i n g i n t e r f e r e n c e t h a t m a y c a u s e u n d e s i r e d o p e r a t i o n . Designed by Vifa Denmark A/S Made in China M o d e l / 型 号 ： V I F A 0 7 0 . P o r t a b l e W i r e l e s s S p e a k e r 便 携 无 线 音 箱 . F C C I D : 2 A A P 8 - V I F A N O R D I C 3 . I C : 9 0 4 3 A - V I F A N O R D I C 3 . C A N I C E S - 3 ( B ) / N M B - 3 ( B ) . C M I I T I D : 2 0 1 7 D J 3 8 7 4 . M S I P - C M M - V F A - V I F A 0 7 0 . I n p u t / 输 入 ： 5 V 2 A . T h i s d e v i c e c o n t a i n s L i - I o n r e c h a r g a b l e b a t t e r i e s ( 2 3 W h ) 제 조 자 : G U O G U A N G E L E C T R I C C O . , L T D . A / S 연 락 처 : + 8 2 1 0 4 0 9 2 7 3 8 0 V i f a D e n m a r k A / S . S M E D E L A N D 7 , S M E D E L A N D , 2 6 0 0 , G L O S T R U P , D E N M A R K . 威 发 丹 麦 股 份 有 限 公 司 地 址 ： 丹 麦 格 洛 斯 楚 普 市 斯 摩 德 格 兰 斯 摩 德 格 兰 � 号 邮 编 ： D K - 2 6 0 0 . 中 国 制 造 T h i s d e v i c e c o m p l i e s w i t h p a r t 1 5 o f t h e F C C R u l e s . O p e r a t i o n i s s u b j e c t t o t h e f o l l o w i n g t w o c o n d i t i o n s : ( 1 ) T h i s d e v i c e m a y n o t c a u s e h a r m f u l i n t e r f e r e n c e , a n d ( 2 ) t h i s d e v i c e m u s t a c c e p t a n y i n t e r f e r e n c e r e c e i v e d , i n c l u d i n g i n t e r f e r e n c e t h a t m a y c a u s e u n d e s i r e d o p e r a t i o n . LABELBEL: label location:

Appendix II Internal Photographs Page 2 of 7 Internal View of EUT-1 Internal View of EUT-2 Page 3 of 7 Internal View of EUT-3 Internal View of EUT-4 Page 4 of 7 Internal View of EUT-5 Internal View of EUT-6 Page 5 of 7 Internal View of EUT-7 Internal View of EUT-8 Page 6 of 7 Internal View of EUT-9 Internal View of EUT-10 Page 7 of 7 Internal View of EUT-11 Internal View of EUT-12 Antenna

FCC ID: 2AAP8-VIFANORDIC3-2 According to KDB 447498 D01 General RF Exposure Guidance v06, section 4.3.1 At 100 MHz to 6 GHz and for test separation distances ≤ 50 mm, the SAR test exclusion threshold is determined according to the following [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] x [√f(GHz)] ≤ 3.0 1. SAR test exclusion threshold Frequency: 2480MHz (min. separation distances = 5 mm) SAR test exclusion thresholds (5 mm) = 3 x 5 / (√ 2.480) = 9.525 mW Max. Tune-up Tolerance (mW) SAR Test Exclusion Thresholds (5mm) (mW) 3 9.525 Calculation Value: 3 (mW) / 5 (mm) x √ 2.480 = 0.94 So, Calculation value ≤ 3.0 Remark: -Max. conducted power 2.24 mW is closest 3 mW, so 3 mW was calculated. -When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 2. Conclusion: No SAR is required.

The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. CFR 47 FCC PART 15 SUBPART C ISED RSS-247 ISSUE 2 TEST REPORT For Portable Wireless Speaker MODEL NUMBER: VIFA070 FCC ID: 2AAP8-VIFANORDIC3-2 REPORT NUMBER: 4790532097-RF-1 ISSUE DATE: December 15, 2022 Prepared for Guoguang Electric Co.,Ltd No.8 Jinghu Road, Xinhua Street, Huadu Reg, Guangzhou 510800 Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Building 10, Innovation Technology Park, No. 1, Li Bin Road, Song Shan Lake Hi- Tech Development Zone Dongguan, 523808, People’s Republic of China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4790532097-RF-1 Page 2 of 97 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 December 15, 2022 Initial Issue REPORT NO.: 4790532097-RF-1 Page 3 of 97 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Summary of Test Results Clause Test Items FCC/ISED Rules Test Results 1 20dB Bandwidth and 99% Occupied Bandwidth FCC 15.247 (a) (1) RSS-247 Clause 5.1 (a) RSS-Gen Clause 6.7 Pass 2 Conducted Output Power FCC 15.247 (b) (1) RSS-247 Clause 5.1 (b) Pass 3 Carrier Hopping Channel Separation FCC 15.247 (a) (1) RSS-247 Clause 5.1 (b) Pass 4 Number of Hopping Frequency 15.247 (a) (1) III RSS-247 Clause 5.1 (d) Pass 5 Time of Occupancy (Dwell Time) 15.247 (a) (1) III RSS-247 Clause 5.1 (d) Pass 6 Conducted Bandedge FCC 15.247 (d) RSS-247 Clause 5.5 Pass 7 Radiated Bandedge and Spurious FCC 15.247 (d) FCC 15.209 FCC 15.205 RSS-247 Clause 5.5 RSS-GEN Clause 8.9 RSS-GEN Clause 8.10 Pass 8 Conducted Emission Test for AC Power Port FCC 15.207 RSS-GEN Clause 8.8 Pass 9 Antenna Requirement FCC 15.203 RSS-GEN Clause 6.8 Pass Note: 1.This test report is only published to and used by the applicant, and it is not for evidence purpose in China. 2. The measurement result for the sample received is <Pass> according to < CFR 47 FCC PART 15 SUBPART C >< ISED RSS-247 > when <Accuracy Method> decision rule is applied. REPORT NO.: 4790532097-RF-1 Page 4 of 97 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. CONTENTS 1. ATTESTATION OF TEST RESULTS ..................................................................................... 6 2. TEST METHODOLOGY ......................................................................................................... 7 3. FACILITIES AND ACCREDITATION ..................................................................................... 7 4. CALIBRATION AND UNCERTAINTY ................................................................................... 8 4.1. MEASURING INSTRUMENT CALIBRATION ........................................................... 8 4.2. MEASUREMENT UNCERTAINTY ............................................................................ 8 5. EQUIPMENT UNDER TEST .................................................................................................. 9 5.1. DESCRIPTION OF EUT ........................................................................................... 9 5.2. CHANNEL LIST ........................................................................................................ 9 5.3. MAXIMUM EIRP ....................................................................................................... 9 5.4. TEST CHANNEL CONFIGURATION ...................................................................... 10 5.1. WORST-CASE CONFIGURATIONS ....................................................................... 10 5.2. THE WORSE CASE POWER SETTING PARAMETER .......................................... 10 5.3. DESCRIPTION OF AVAILABLE ANTENNAS ......................................................... 10 5.4. DESCRIPTION OF TEST SETUP ........................................................................... 11 6. MEASURING EQUIPMENT AND SOFTWARE USED......................................................... 12 7. ANTENNA PORT TEST RESULTS ..................................................................................... 14 7.1. CONDUCTED OUTPUT POWER ........................................................................... 14 7.2. 20 DB BANDWIDTH AND 99% OCCUPIED BANDWIDTH ..................................... 15 7.3. CARRIER HOPPING CHANNEL SEPARATION ..................................................... 17 7.4. NUMBER OF HOPPING FREQUENCY .................................................................. 19 7.5. TIME OF OCCUPANCY (DWELL TIME) ................................................................. 20 7.6. CONDUCTED BANDEDGE AND SPURIOUS EMISSION ...................................... 22 7.7. DUTY CYCLE ......................................................................................................... 24 8. RADIATED TEST RESULTS ............................................................................................... 25 8.1. RESTRICTED BANDEDGE .................................................................................... 34 8.2. SPURIOUS EMISSIONS (1 GHZ ~ 3 GHZ) ..........................................…

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Approval sheet Page 1 of 11 RFFPA361009IMAB301_V01 Apr. 2017 FPC ANTENNA 2.4 GHz Working Frequency Halogens Free Product P/N: RFFPA361009IMAB301 Customer： Customer ‘s Part No.： Approval No.： Issue Date： *Contents in this sheet are subject to change without prior notice. Approval sheet Page 2 of 11 RFFPA361009IMAB301_V01 Apr. 2017 Version Date Description Author V01 2017 Apr. New Release SHLEE Approval sheet Page 3 of 11 RFFPA361009IMAB301_V01 Apr. 2017 ELECTRICAL CHARACTERISTICS Item Specification Working Frequency Range 2.4 ~ 2.5 GHz(Note-1) Impedance 50 Ohm Nominal VSWR 2.0 (Max) Radiation Omni-directional Gain(peak) 2.44 dBi Polarization Linear Vertical *Note 1. Central Frequency should be defined after customers’ application approval. MATERIAL TABLE Items Description FPC 0.5oz(黑漆板) Cable Coaxial Cable (Ø1.13) (Gray) Connector IPEX Compatible(Gold) Double Tape 3M9888T Sponge(F-2G)+Double Tape(單面背膠) L58*W15*T3mm ORDERING RULE RF FPA 3610 09 I M A B 3 01 Type Code Product Code PCB Dimension (Unit: mm) PCB Length (unit: cm) Connector Brand Type of ConnectorApplication Project status Wire Diameter Project Walsin RF Device PCB Antenna Per 2 digits o f length, width e.g.: 3610 Length 36.9mm, Width 10.2mm 2 digits for cable length e.g.: 09 Length 9.0cm A: N C:MCX D:IPEX III E: IPEX IV F: IPEX A13 H: Hirose I: IPEX M: MMCX S: SMA T: TNC U:MURATA N: None A: Reverse Female B: Reverse Male F: Female M: Male N: None 0: 0GHz 3: 3GHz 5: 5GHz 6: 6GHz A: 2.4GHz ISM band B: GSM 900/1800 dual band G: GPS band L: 2.4/5.2/5.8 GHz tri-band N: NFC T: LTE band W: WCDMA band B: MP T:During Test X: Pile Run 0:None 1:∅0.81 2:∅1.32 3:∅1.13 4:Low Loss ∅1.13 5:∅0.5 6:RG316 7: ∅1.37 8:RG178 9:Low Loss ∅1.37 01~99 series number Approval sheet Page 4 of 11 RFFPA361009IMAB301_V01 Apr. 2017 Dimensions Approval sheet Page 5 of 11 RFFPA361009IMAB301_V01 Apr. 2017 Test Report ■ Experimental Setup Approval sheet Page 6 of 11 RFFPA361009IMAB301_V01 Apr. 2017 ■ Antenna Solution Detail Approval sheet Page 7 of 11 RFFPA361009IMAB301_V01 Apr. 2017 ■ELECTRICAL CHARACTERISTICS Return Loss Approval sheet Page 8 of 11 RFFPA361009IMAB301_V01 Apr. 2017 ■Antenna Efficiency and Peak Gain Approval sheet Page 9 of 11 RFFPA361009IMAB301_V01 Apr. 2017 ■RADIATION PATTERN 2400~2500 MHz Phi=0.00deg Gain . dB Approval sheet Page 10 of 11 RFFPA361009IMAB301_V01 Apr. 2017 Phi=90.00deg Gain . dB

Appendix III Setup Photographs Page 2 of 4 AC Power Line Conducted Emission Radiated Spurious Emission Below 30 MHz Page 3 of 4 Radiated Spurious Emission Below 1 GHz and 30 MHz Radiated Spurious Emission Above 1 GHz – X Axis Page 4 of 4 Radiated Spurious Emission Above 1 GHz – Y Axis Radiated Spurious Emission Above 1 GHz – Z Axis