2APMK-UTD07BBluetooth adaptor

QF094234 Page 1 of 1 Revision 0 Authority to Act as Agent Date: 2021-04-27 TUV Rheinland Group 762 Park Avenue Youngsville, NC 27596 To Whom It May Concern: I appoint TUV Rheinland (Shenzhen) Co., Ltd. to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the FCC or Industry Canada’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by TUV Rheinland Group, still resides with UNI-TREND TECHNOLOGY (CHINA) CO.,LTD. / No 6, Gong Ye Bei 1st Road, Songshan Lake National High-Tech Industrial Development Zone, Dongguan City, Guangdong Province, China For TCB applications, We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you, Agency Agreement Expiration Date: 12 months By : Rita Zhuang (Print Name) Title : Certificate Engineer Telephone : (86-769) 8572 3888 On behalf of : UNI-TREND TECHNOLOGY (CHINA) CO.,LTD. (Company Name)

Standard Form Sample Request for Confidentiality Letter MS-0044715 Page 1 of 1 Revision 0 The following is a sample Confidentiality Request letter, which needs to be completed on company letterhead, signed by an authorized Applicant/Agent, and submitted to TÜV Rheinland. Date: 2021-04-27 Subject: Confidentiality Request for FCC ID: 2APMK-UTD07B Pursuant to FCC 47 CRF 0.457(d) and 0.459 and IC RSP-100, Section 10, the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Exhibit Short Term Permanent Block Diagrams Short Term Permanent Internal Photos *** Short Term Permanent Operation Description/Theory of Operation Short Term Permanent Tune-Up Procedure Short Term Permanent Schematics Short Term Permanent User’s Manual*** Short Term n/a Test Setup Short Term n/a External Photos UNI-TREND TECHNOLOGY (CHINA) CO.,LTD. has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. (*** PAG only) Short-Term Confidentiality: The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, By: _________________________________ Rita Zhuang (Signature/Title) (Print name)

A l l r i g h t s t r i c t l y r e s e r v e d . R e p r o d u c t i o n o r i s s u e t o t h i r d p a r t i e s i n a n y f o r m w h a t e v e r i s n o t p e r m i t t e d w i t h o u t w r i t t e n a u t h o r i t y f r o m t h e p r o p r i e t o r s . 0 UT-D07BUT-D07B FCC ID:2APMK-UTD07BFCC ID:2APMK-UTD07B UT-D07B 万继平21/01/08 优利德科技（中国）股份有限公司 UNI-TREND TECHNOLOGY(CHINA)LIMITED Reproduction or issue to third parties in any form whateveris not permitted without written authority from the proprietors . All right strictly reserved. UNI-TREND TECHNOLOGY (CHINA) LIMITED 优 利 德 科 技 ( 中 国 ) 股 份 有 限 公 司 R >400~1000 >30~120 >120~400>6~30 >3~6 0.5~3 技术要求 1、具体尺寸见3D档: 2、不能有批锋、缩水、气孔等注塑缺陷; 3、未注脱模斜度1°,未注圆角R0.2mm; 4、外表面蚀纹,规格：AYS1286(亚光),其余为普通抛光面 5、带*尺寸为主检尺寸

1 Safety Human Exposure 1.1 Radio Frequency Exposure Compliance 1.1.1 Electromagnetic Fields RESULT: Pass Test Specification Test standard : CFR47 FCC Part 2: Section 2.1093 CFR47 FCC Part 1: Section 1.1310 FCC KDB Publication 447498 v06, section 7  FCC requirements EUT RF Exposure Evaluation operations, Worst Case mode Test Mode Measured conducted Power Threshold power @5mm Verdict dBm mW dBm mW BLE 7.40 5.5 10 10 Compliant

Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 1 of 44 Appendix B: Test Results of BLE APPENDIX B: TEST RESULTS OF BLE ............................................................................................................................... 1 APPENDIX B.1: TEST RESULTS OF CONDUCTED POWER SPECTRAL DENSITY ..................................................................................... 2 GFSK(BLE) Mode, 1Mbps .............................................................................................................................................. 2 GFSK(BLE) Mode, 2Mbps .............................................................................................................................................. 3 APPENDIX B.2: TEST RESULTS OF 6DB BANDWIDTH .................................................................................................................... 5 GFSK(BLE) Mode, 1Mbps .............................................................................................................................................. 5 GFSK(BLE) Mode, 2Mbps .............................................................................................................................................. 8 APPENDIX B.3: TEST RESULTS OF 99% BANDWIDTH ................................................................................................................. 11 GFSK(BLE) Mode, 1Mbps ............................................................................................................................................ 11 GFSK(BLE) Mode, 2Mbps ............................................................................................................................................ 14 APPENDIX B.4: TEST RESULTS OF CONDUCTED SPURIOUS EMISSIONS MEASURED IN 100 KHZ BANDWIDTH ....................................... 17 GFSK(BLE) Mode, 1Mbps ............................................................................................................................................ 17 GFSK(BLE) Mode, 2Mbps ............................................................................................................................................ 21 APPENDIX B.5: TEST RESULTS OF RADIATED SPURIOUS EMISSIONS ............................................................................................. 25 30 MHz to 1GHz .......................................................................................................................................................... 25 1GHz-18GHz ................................................................................................................................................................ 29 APPENDIX B.6: TEST RESULTS OF RADIATED EMISSIONS IN RESTRICTED BANDS ............................................................................. 41 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 2 of 44 Appendix B.1: Test Results of Conducted Power Spectral Density GFSK(BLE) Mode, 1Mbps Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 3 of 44 GFSK(BLE) Mode, 2Mbps Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 4 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 5 of 44 Appendix B.2: Test Results of 6dB Bandwidth GFSK(BLE) Mode, 1Mbps Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 6 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 7 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 8 of 44 GFSK(BLE) Mode, 2Mbps Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 9 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 10 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 11 of 44 Appendix B.3: Test Results of 99% Bandwidth GFSK(BLE) Mode, 1Mbps Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 12 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 13 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 14 of 44 GFSK(BLE) Mode, 2Mbps Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 15 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 16 of 44 Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 17 of 44 Appendix B.4: Test Results of Conducted Spurious Emissions Measured in 100 kHz Bandwidth GFSK(BLE) Mode, 1Mbps Low Channel: Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 18 of 44 Middle Channel: Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 19 of 44 High Channel: Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 20 of 44 Band Edge, Low Channel: Band Edge, High Channel: Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 21 of 44 GFSK(BLE) Mode, 2Mbps Low Channel: Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 22 of 44 Middle Channel: Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 23 of 44 High Channel: Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 24 of 44 Band Edge, Low Channel: Band Edge, High Channel: Prüfbericht - Produkte Test Report - Products Appendix B CN211LF3 001 Page 25 of 44 Appendix B.5: Test Results of Radiated Spurious Emissions Note: 1) This testing was carried out on different modulations, but only the worst case was presented in this report. 2) Testing was carried out within frequency range 9kHz to the tenth harmonics. The measurement results below 30MHz and 18GHz - 26.5GHz were greater than 20dB below the limit, so only the radiated spurious emissions from 30MHz to 18GHz were reported. 30 MHz to 1GHz EUT Information EUT Name: Bluetooth adaptor Model: UT-D07B Test Mode: BLE_1M_Low c…

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Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 1 of 9 Appendix C: Test Results of FCC 15B & ICES-003 APPENDIX C: TEST RESULTS OF FCC 15B & ICES-003 ...................................................................................................... 1 APPENDIX C.1: TEST PLOTS OF RADIATED EMISSION, BELOW 1GHZ .............................................................................................. 2 BT mode ........................................................................................................................................................................ 2 APPENDIX C.2: TEST PLOTS OF RADIATED EMISSION, ABOVE 1GHZ .............................................................................................. 6 BT mode ........................................................................................................................................................................ 6 Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 2 of 9 Appendix C.1: Test Plots of Radiated Emission, Below 1GHz BT mode Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 3 of 9 Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 4 of 9 Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 5 of 9 Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 6 of 9 Appendix C.2: Test Plots of Radiated Emission, Above 1GHz BT mode Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 7 of 9 Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 8 of 9 Prüfbericht - Produkte Test Report - Products Appendix C CN211LF3 001 Page 9 of 9

Prüfbericht - Produkte Test Report - Products Prüfbericht-Nr.: Test report no.: CN211LF3 001 Auftrags-Nr.: Order no.: 168309425 Seite 1 von 21 Page 1 of 21 Kunden-Referenz-Nr.: Client reference no.: N/A Auftragsdatum: Order date: 2021-03-12 Auftraggeber: Client: UNI-TREND TECHNOLOGY (CHINA) CO.,LTD. No 6, Gong Ye Bei 1st Road, Songshan Lake National High-Tech Industrial Development Zone, Dongguan City, Guangdong Province, China Prüfgegenstand: Test item: Bluetooth adaptor Bezeichnung / Typ-Nr.: Identification / Type no.: UT-D07B (Trademark: UNI-T) Auftrags-Inhalt: Order content: FCC & IC approval Prüfgrundlage: Test specification: CFR47 FCC Part 15: Subpart C Section 15.247 CFR47 FCC Part 15: Subpart C Section 15.209 CFR47 FCC Part 15: Subpart B Section 15.109 RSS-247 Issue 2 February 2017 RSS-Gen Issue 5 March 2019 ICES-003 Issue 7 October 2020 Wareneingangsdatum: Date of sample receipt: 2021-03-16 Please refer to Photo Document Prüfmuster-Nr.: Test sample no: A003014223-003~005 Prüfzeitraum: Testing period: 2021-03-16 – 2021-04-15 Ort der Prüfung: Place of testing: Refer to section 2.1 Prüflaboratorium: Testing laboratory: TÜV Rheinland (Shenzhen) Co., Ltd. Prüfergebnis*: Test result*: Pass geprüft von: tested by: X Signed by: Jackson Yang genehmigt von: authorized by: X Signed by: Winnie Hou Datum: Date: 2021-04-21 Ausstellungsdatum: Issue date: 2021-04-21 Stellung / Position: Project Engineer Stellung / Position: Technical Certifier Sonstiges / Other: FCC ID: 2APMK-UTD07B Zustand des Prüfgegenstandes bei Anlieferung: Condition of the test item at delivery: Prüfmuster vollständig und unbeschädigt Test item complete and undamaged * Legende: 1 = sehr gut 2 = gut 3 = befriedigend 4 = ausreichend 5 = mangelhaft P(ass) = entspricht o.g. Prüfgrundlage(n) F(ail) = entspricht nicht o.g. Prüfgrundlage(n) N/A = nicht anwendbar N/T = nicht getestet * Legend: 1 = very good 2 = good 3 = satisfactory 4 = sufficient 5 = poor P(ass) = passed a.m. test specification(s) F(ail) = failed a.m. test specification(s) N/A = not applicable N/T = not tested Dieser Prüfbericht bezieht sich nur auf das o.g. Prüfmuster und darf ohne Genehmigung der Prüfstelle nicht auszugsweise vervielfältigt werden. Dieser Bericht berechtigt nicht zur Verwendung eines Prüfzeichens. This test report only relates to the a. m. test sample. Without permission of the test center this test report is not permitted to be duplicated in extracts. This test report does not entitle to carry any test mark. TÜV Rheinland (Shenzhen) Co., Ltd. 1601 R&D Room, 1602-1604, 17-18F, Building 7 Site C, Vanke Cloud City Phase I, Xingke First Street, Xili Street, Xili Community, Nanshan District, Shenzhen 518052, P.R. China Mail: [email protected] · Web: www.tuv.com Prüfbericht - Produkte Test Report - Products Prüfbericht - Nr.: Test Report No. CN211LF3 001 Seite 2 von 21 Page 2 of 21 Test Summary 5.1.1 ANTENNA REQUIREMENT RESULT: Pass 5.1.2 MAXIMUM PEAK CONDUCTED OUTPUT POWER RESULT: Pass 5.1.3 CONDUCTED POWER SPECTRAL DENSITY RESULT: Pass 5.1.4 6DB BANDWIDTH RESULT: Pass 5.1.5 99% BANDWIDTH RESULT: Pass 5.1.6 CONDUCTED SPURIOUS EMISSIONS MEASURED IN 100 KHZ BANDWIDTH RESULT: Pass 5.1.7 RADIATED SPURIOUS EMISSION RESULT: Pass 5.1.8 RADIATED EMISSION RESULT: Pass Prüfbericht - Produkte Test Report - Products Prüfbericht - Nr.: Test Report No. CN211LF3 001 Seite 3 von 21 Page 3 of 21 Contents 1 GENERAL REMARKS ........................................................................................................................... 4 1.1 COMPLEMENTARY MATERIALS ............................................................................................................ 4 2 TEST SITES ........................................................................................................................................ 5 2.1 TEST FACILITIES ................................................................................................................................. 5 2.2 LIST OF TEST AND MEASUREMENT INSTRUMENTS................................................................................. 5 2.3 TRACEABILITY .................................................................................................................................... 7 2.4 CALIBRATION ..................................................................................................................................... 7 2.5 MEASUREMENT UNCERTAINTY............................................................................................................. 7 2.6 LOCATION OF ORIGINAL DATA ............................................................................................................. 7 2.7 STATUS OF FACILITY USED FOR TESTING ............................................................................................. 7 3 GENERAL PRODUCT INFORMATION ...................................................................................................... 8 3.1 PRODUCT FUNCTION AND INTENDED USE ............................................................................................. 8 3.2 RATINGS AND SYSTEM DETAILS .......................................................................................................... 8 3.3 INDEPENDENT OPERATION MODES ...................................................................................................... 9 3.4 NOISE GENERATING AND NOISE SUPPRESSING PARTS ......................................................................... 9 3.5 SUBMITTED DOCUMENTS..................................................................................................................... 9 4 TEST SET-UP AND OPERATION MODES ..............................................................................................10 4.1 PRINCIPLE OF CONFIGURATION SELECTION .......................................................................................10 4.2 TEST OPERATION AND TEST SOFTWARE .............................................................…

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Prüfbericht - Produkte Test Report - Products Appendix A CN211LF3 001 Page 1 of 3 Appendix A: Photographs of the Test Set-Up APPENDIX A: PHOTOGRAPHS OF THE TEST SET-UP ....................................................................................................... 1 PHOTOGRAPH 1: SET-UP PHOTO FOR RADIATED SPURIOUS EMISSION, 30MHZ - 1GHZ ...................................................................... 2 PHOTOGRAPH 2: SET-UP PHOTO FOR RADIATED SPURIOUS EMISSION, ABOVE 1GHZ ......................................................................... 2 PHOTOGRAPH 3: SET-UP PHOTO FOR RADIATED EMISSIONS BELOW 1GHZ ....................................................................................... 3 PHOTOGRAPH 4: SET-UP PHOTO FOR RADIATED EMISSIONS ABOVE 1GHZ ....................................................................................... 3 Prüfbericht - Produkte Test Report - Products Appendix A CN211LF3 001 Page 2 of 3 Photograph 1: Set-up photo for Radiated Spurious Emission, 30MHz - 1GHz Photograph 2: Set-up photo for Radiated Spurious Emission, Above 1GHz Prüfbericht - Produkte Test Report - Products Appendix A CN211LF3 001 Page 3 of 3 Photograph 3: Set-up photo for Radiated Emissions Below 1GHz Photograph 4: Set-up photo for Radiated Emissions Above 1GHz