OGGK3BB2742PORTABLE SPEAKER

GUANGZHOU PANYU MINFU SPEAKER FACTORY Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020-09-17 Subject; Request for Confidentiality FCC ID: OGGK3BB2742 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Pan FuXin Title: Manager

Test model number: BB2742

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 interference received, including interference that may cause undesired operation." size：95x50mm

Test model number: BB2742 2 1

Global United Technology Services Co., Ltd. Report No.: GTS202008000249F01 Authorized Signature: Robinson Lo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 37 + TEST REPORT Applicant: GUANGZHOU PANYU MINFU SPEAKER FACTORY Address of Applicant: DONG SHENG SAN HENG RD., CHADONG, SHIJI, PANYU DIS, GUANGZHOU, China Manufacturer/Factory: GUANGZHOU PANYU MINFU SPEAKER FACTORY Address of Manufacturer/Factory: DONG SHENG SAN HENG RD., CHADONG, SHIJI, PANYU DIS, GUANGZHOU, China Equipment Under Test (EUT) Product Name: PORTABLE SPEAKER Model No.: BB2742 Trade Mark: Billboard FCC ID: OGGK3BB2742 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.249 Date of sample receipt: September 11, 2020 Date of Test: September 11-17, 2020 Date of report issued: September 17, 2020 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS202008000249F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 37 2 Version Version No. Date Description 00 September 17, 2020 Original Prepared By: Date: September 17, 2020 Project Engineer Check By: Date: September 17, 2020 Reviewer Report No.: GTS202008000249F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 37 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 VERSION .................................................................................................................................................. 2 3 CONTENTS .............................................................................................................................................. 3 4 TEST SUMMARY ..................................................................................................................................... 4 4.1 MEASUREMENT UNCERTAINTY ............................................................................................................ 4 5 GENERAL INFORMATION ...................................................................................................................... 5 5.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.2 TEST MODE ........................................................................................................................................ 7 5.3 DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 7 5.4 DEVIATION FROM STANDARDS ............................................................................................................. 7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................... 7 5.6 TEST FACILITY .................................................................................................................................... 8 5.7 TEST LOCATION ................................................................................................................................. 8 5.8 ADDITIONAL INSTRUCTIONS ................................................................................................................. 8 6 TEST INSTRUMENTS LIST ..................................................................................................................... 9 7 TEST RESULTS AND MEASUREMENT DATA .................................................................................... 11 7.1 ANTENNA REQUIREMENT ................................................................................................................... 11 7.2 CONDUCTED EMISSIONS ................................................................................................................... 12 7.3 RADIATED EMISSION METHOD ........................................................................................................... 15 7.3.1 Field Strength of The Fundamental Signal ................................................................................ 17 7.3.2 Spurious emissions .................................................................................................................... 19 7.3.3 Bandedge emissions.................................................................................................................. 27 7.4 20DB OCCUPY BANDWIDTH .............................................................................................................. 31 8 TEST SETUP PHOTO ............................................................................................................................ 37 9 EUT CONSTRUCTIONAL DETAILS ..................................................................................................... 37 Report No.: GTS202008000249F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 37 4 Test Summary Test Item Section in CFR 47 Result Antenna requirement 15.203 Pass AC Power Line Conducted Emission 15.207 Pass Field strength of the fundamental signal 15.249 (a) Pass S…

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Global United Technology Services Co., Ltd. Report No.: GTS202008000249F02 Authorized Signature: Robinson Lo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 33 TEST REPORT Applicant: GUANGZHOU PANYU MINFU SPEAKER FACTORY Address of Applicant: DONG SHENG SAN HENG RD., CHADONG, SHIJI, PANYU DIS, GUANGZHOU, China Manufacturer/Factory: GUANGZHOU PANYU MINFU SPEAKER FACTORY Address of Manufacturer/Factory: DONG SHENG SAN HENG RD., CHADONG, SHIJI, PANYU DIS, GUANGZHOU, China Equipment Under Test (EUT) Product Name: PORTABLE SPEAKER Model No.: BB2742 Trade Mark: Billboard FCC ID: OGGK3BB2742 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.249 Date of sample receipt: September 11, 2020 Date of Test: September 11-17, 2020 Date of report issued: September 17, 2020 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS202008000249F02 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 33 2 Version Version No. Date Description 00 September 17, 2020 Original Prepared By: Date: September 17, 2020 Project Engineer Check By: Date: September 17, 2020 Reviewer Report No.: GTS202008000249F02 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 33 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 VERSION .................................................................................................................................................. 2 3 CONTENTS .............................................................................................................................................. 3 4 TEST SUMMARY ..................................................................................................................................... 4 4.1 MEASUREMENT UNCERTAINTY ............................................................................................................ 4 5 GENERAL INFORMATION ...................................................................................................................... 5 5.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.2 TEST MODE ........................................................................................................................................ 7 5.3 DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 7 5.4 DEVIATION FROM STANDARDS ............................................................................................................. 7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................... 7 5.6 TEST FACILITY .................................................................................................................................... 7 5.7 TEST LOCATION ................................................................................................................................. 7 5.8 ADDITIONAL INSTRUCTIONS ................................................................................................................. 7 6 TEST INSTRUMENTS LIST ..................................................................................................................... 8 7 TEST RESULTS AND MEASUREMENT DATA .................................................................................... 10 7.1 ANTENNA REQUIREMENT ................................................................................................................... 10 7.2 CONDUCTED EMISSIONS ................................................................................................................... 11 7.3 RADIATED EMISSION METHOD ........................................................................................................... 14 7.3.1 Field Strength of The Fundamental Signal ................................................................................ 16 7.3.2 Spurious emissions .................................................................................................................... 18 7.3.3 Bandedge emissions.................................................................................................................. 26 7.4 20DB OCCUPY BANDWIDTH .............................................................................................................. 30 8 TEST SETUP PHOTO ............................................................................................................................ 33 9 EUT CONSTRUCTIONAL DETAILS ..................................................................................................... 33 Report No.: GTS202008000249F02 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 33 4 Test Summary Test Item Section in CFR 47 Result Antenna requirement 15.203 Pass AC Power Line Conducted Emission 15.207 Pass Field strength of the fundamental signal 15.249 (a) Pass Spu…

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Test model number: BB2742 Radiated Emission Conducted Emission