A4C91008ABluetooth ANC Headset

RM Acquisition LLC. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter July 31, 2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: A4C91008A FRN: 0020219580 Per section 2.911(d)(7) of the FCC rules, (“RM Acquisition LLC.”) certifies that the equipment for which authorization is sought is designated to the following U.S. Designated agent* for service of process: Company Name: RM Acquisition LLC. Physical U.S. Company Address: 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States Agent name: Kristalyn Wilkerson Agent Email Address: [email protected] FRN: 0020219580 The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Designated Agent Signed: (Required, if different to Applicant): Signed: Signed: Printed name: Kristalyn Wilkerson Printed name: Kristalyn Wilkerson Title: CFO Title: CFO Company Name: RM Acquisition LLC. Company Name: RM Acquisition LLC. Date: Jul.31, 2023 Date: 2023-07-31

RM Acquisition LLC. Covered Equipment Certification Attestation Letter 7/31/2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: A4C91008A (RM Acquisition LLC.) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. (RM Acquisition LLC.) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Signed: Printed name: Kristalyn Wilkerson Title: CFO Company Name: RM Acquisition LLC. Date: 2023-07-31

2023-07-31 Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint Shenzhen Huatongwei International Inspection Co., Ltd./ 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China / Hans Hu,. 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 Federal Communications Commission’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 Nemko Canada Inc, still resides with RM Acquisition LLC. / 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States Agency agreement expiration date: Jul.31, 2024 By: Kristalyn Wilkerson Signature Printed Title: CFO On behalf of : RM Acquisition LLC. Telephone: 8473296590

2023-07-31 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: A4C91008A Product Name: Bluetooth ANC Headset Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Dated this Jul.31, 2024 By: Kristalyn Wilkerson Signature Printed Title: CFO On behalf of : RM Acquisition LLC. Telephone: 8473296590

Differences Declaration To whom concern, We company RM Acquisition LLC. Here by declares: The product model(s) CD100a, CD180a, CD210a, CD300 is the same PCB layout, electronic schematic and Antenna with ClearDryve 220a, which tested in Shenzhen Huatongwei International Inspection Co., Ltd., the only difference is different model names for commercial purpose. Sincerely yours, Name (in print): Kristalyn Wilkerson Company name: RM Acquisition LLC. Company address: 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States Tel: 8473296590 E-Mail: [email protected]

External Photos

12 2mm 3.6mm 19.5mm .9 mm 右支壁内侧 (right bracket inside) 右(right earcap) 丝印颜色：PANTONE 8400C FCC ID: A4C91008A CD220a IC: 10119A-91008A FCC ID: A4C91008A CD220a IC: 10119A-91008A

Internal Photos

Page: 1 of 23 SAR TEST REPORT Report No. ...................................... : CHTEW22120094 Report verificaiton: Project No. ...................................... : SHT2210059202EW FCC ID ............................................. : A4C91008A Applicant’s name ........................... : RM Acquisition LLC. Address ............................................. : 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States Test item description .................... : Bluetooth ANC Headset Trade Mark ....................................... : Rand McNally Model/Type reference ....................... : ClearDryve 220a Listed Model(s) ................................. : CD100a, CD180a, CD210a, CD300 Standard ......................................... : FCC 47 CFR Part2.1093 IEEE Std C95.1, 1999 Edition IEEE 1528: 2013 Date of receipt of test sample..........: Nov.30, 2022 Date of testing..............................: Nov.30, 2022-Dec.15, 2022 Date of issue...............................: Dec.16, 2022 Result .................. ........................: PASS Compiled by ( Position+Printed name+Signature): File administrator Fanghui Zhu Supervised by (Position+Printed name+Signature): Project Engineer Weiyang.Xiang Approved by ( position+printedname+signature) ... : Manager: Hans Hu Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd Address ............................................. : 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., 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. The test report merely correspond to the test sample. Report No.: CHTEW22120094 Page: 2 of 23 Issued: 2022-12-16 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V04(2022-01) Contents 1. Statement of Compliance 3 2. Test Standards and Report version 4 2.1. Test Standards 4 2.2. Report version 4 3. Summary 5 3.1. Client Information 5 3.2. Product Description 5 3.3. RF Specification Description 5 3.4. Testing Laboratory Information 6 3.5. Environmental conditions 6 4. Equipments Used during the Test 7 5. Measurement Uncertainty 8 6. SAR Measurements System Configuration 9 6.1. SAR Measurement Set-up 9 6.2. DASY5 E-field Probe System 10 6.3. Phantoms 11 6.4. Device Holder 11 7. SAR Test Procedure 12 7.1. Scanning Procedure 12 7.2. Data Storage and Evaluation 14 8. Dielectric Property Measurements & System Check 16 8.1. Tissue Dielectric Parameters 16 8.2. System Check 17 9. SAR Exposure Limits 20 10. Conducted Power Measurement Results and Tune-up 21 11. Measured and Reported SAR Results 21 12. Antenna Location 22 13. Test Setup Photos 23 14. External and Internal Photos of the EUT 23 Report No.: CHTEW22120094 Page: 3 of 23 Issued: 2022-12-16 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V04(2022-01) 1. Statement of Compliance Maximum Reported SAR (W/kg @1g) RF Exposure Conditions BT Head 0.040 Note: 1. This device is in compliance with Specific Absorption Rate (SAR) for general population/uncontrolled exposure limits (1.6 W/kg@1g) specified in FCC 47 CFR part 2 (2.1093) and IEEE Std C95.1, 2. This device had been tested in accordance with the measurement methods and procedures specified in IEEE 1528 and FCC KDB publications. Report No.: CHTEW22120094 Page: 4 of 23 Issued: 2022-12-16 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V04(2022-01) 2. Test Standards and Report version 2.1. Test Standards The tests were performed according to following standards: FCC 47 Part 2.1093: Radiofrequency radiation exposure evaluation: portable devices. IEEE Std C95.1, 1999 Edition: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz IEEE Std 1528™-2013: IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques. FCC published RF exposure KDB procedures: 865664 D01 SAR Measurement 100 MHz to 6 GHz v01r04: SAR Measurement Requirements for 100 MHz to 6 GHz 865664 D02 RF Exposure Reporting v01r02: RF Exposure Compliance Reporting and Documentation Considerations 447498 D04 Interim General RF Exposure Guidance v01: Mobile and Portable Device RF Exposure Procedures and Equipment Authorization Policies TCB workshop April, 2019; Page 19, Tissue Simulating Liquids (TSL) 2.2. Report version Revision No. Date of issue Description N/A 2022-12-16 Original Report No.: CHTEW22120094 Page: 5 of 23 Issued: 2022-12-16 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V04(2022-01) 3. Summary 3.1. Client Information Applicant: RM Acquisition LLC. Address: 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States Manufacturer: RM Acquisition LLC. Address: 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States 3.2. Product Description Main unit Name of EUT: Bluetooth ANC Headset Trade Mark: Rand McNally Model No.: ClearDryve 220a Listed Model(s): CD100a, CD180a, CD210a, CD300 Power supply: DC 1.85V from Battery Hardware version: V02 Software version: V07 Device Dimension: Length x Width x Thickness (mm): 90X80X50mm Device Category: Portable Product stage: Production unit RF Exposure Environment: General Population/Uncontrolled HTW test sample No.: YPHT22100592002 Note: The EUT battery must be fully charged and checked periodically during the test to ascertain uniform power. 3.…

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Page: 1 of 34 TEST REPORT For Bluetooth-LE Report No. ...................................... : CHTEW22120091 Report Verification: Project No.................................： SHT2210059201EW FCC ID ............................................. : A4C91008A Applicant’s name ........................... : RM Acquisition LLC. Address ............................................. : 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States Product Name ................................ : Bluetooth ANC Headset Trade Mark ....................................... : Rand McNally Model No. ......................................... : ClearDryve 220a Listed Model(s) ................................. : CD100a, CD180a, CD210a, CD300 Standard ......................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of receipt of test sample..........: Nov.30, 2022 Date of testing.............................: Nov.30, 2022-Dec.15, 2022 Date of issue...............................: Dec.16, 2022 Result .................. ........................: PASS Compiled by ( Position+Printed name+Signature): File administrator Fanghui Zhu Supervised by (Position+Printed name+Signature): Project Engineer Weiyang.Xiang Approved by (Position+Printed name+Signature): RF Manager Hans Hu Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd. Address ............................................. : 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., 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. The test report merely correspond to the test sample. Report No.: CHTEW22120091 Page: 2 of 34 Date of issue: 2022-12-16 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V04 (2022-01) Contents 1. TEST S T AN D AR D S A N D R E P O R T V E R S I O N 3 1.1. Test Standards 3 1.2. Report version 3 2. TEST DESCRIPTION 4 3. SUMMARY 5 3.1. Client Information 5 3.2. Product Description 5 3.3. Radio Specification Description 5 3.4. Testing Laboratory Information 6 4. TEST CONFIGURATION 7 4.1. Test frequency list 7 4.2. Descriptions of Test mode 7 4.3. Test sample information 7 4.4. Support unit used in test configuration and system 8 4.5. Testing environmental condition 8 4.6. Statement of the measurement uncertainty 8 4.7. Equipment Used during the Test 9 5. TEST CONDITIONS AND RESULTS 11 5.1. Antenna Requirement 11 5.2. AC Conducted Emission 12 5.3. Peak Output Power 14 5.4. Power Spectral Density 15 5.5. 6dB bandwidth 16 5.6. 99% Occupied Bandwidth 17 5.7. Duty Cycle 18 5.8. Conducted Band edge and Spurious Emission 19 5.9. Radiated Band edge Emission 20 5.10. Radiated Spurious Emission 22 6. TEST SETUP PHOTOS 28 7. EXTERNAL AND INTERNAL PHOTOS 30 8. APPENDIX REPORT 34 Report No.: CHTEW22120091 Page: 3 of 34 Date of issue: 2022-12-16 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V04 (2022-01) 1. TEST STAND ARDS AND REPORT VERSION 1.1. Test Standards The tests were performed according to following standards: ‒ FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz ‒ ANSI C63.10:2013: American National Standard for Testing Unlicensed Wireless Devices ‒ KDB 558074 D01 15.247 Meas Guidance v05r02: Guidance for Compliance Measurements on Digital Transmission System, Frequency Hopping Spread Spectrum System, and Hybrid System Devices Operating under Section 15.247 of The FCC Rules 1.2. Report version Revision No. Date of issue Description N/A 2022-12-16 Original Report No.: CHTEW22120091 Page: 4 of 34 Date of issue: 2022-12-16 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V04 (2022-01) 2. TEST DESCRIPTION Report clause Test Items Standard Requirement Result Test Engineer 5.1 Antenna Requirement 15.203/15.247(c) PASS Xiaoxiao Li 5.2 AC Conducted Emission 15.207 PASS Dongyang Wu 5.3 Peak Output Power 15.247(b)(3) PASS Xiaoxiao Li 5.4 Power Spectral Density 15.247(e) PASS Xiaoxiao Li 5.5 6dB Bandwidth 15.247(a)(2) PASS Xiaoxiao Li 5.6 99% Occupied Bandwidth - PASS *1 Xiaoxiao Li 5.7 Duty cycle - PASS *1 Xiaoxiao Li 5.8 Conducted Band Edge and Spurious Emission 15.247(d)/15.205 PASS Xiaoxiao Li 5.9 Radiated Band Edge Emission 15.205/15.209 PASS Quanhai Deng 5.10 Radiated Spurious Emission 15.247(d)/15.205/15.209 PASS Jianquan Wu Note: ‒ The measurement uncertainty is not included in the test result. ‒ *1: No requirement on standard, only report these test data. Report No.: CHTEW22120091 Page: 5 of 34 Date of issue: 2022-12-16 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V04 (2022-01) 3. SUMMARY 3.1. Client Information Applicant: RM Acquisition LLC. Address: 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States Manufacturer: RM Acquisition LLC. Address: 8770 W. Bryn Mawr Avenue Chicago Illinois 60631 United States 3.2. Product Description Main unit information: Product Name: Bluetooth ANC Headset Trade Mark: Rand McNally Model No.: ClearDryve 220a Listed Model(s): CD100a, CD180a, CD210a, CD300 Power supply: DC 1.85V from Battery Hardware version: V02 Software version: V07 3.3. Radio Specification Description Bluetooth version: V5.1 Support function *2 : BLE Modulation: GFSK Operation frequency: 2402MHz~2480MHz Channel number: 40 Channel separation: 2MHz Antenna type: Internal Antenna Antenna gain: 4.36dBi Note: *2: only show…

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Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 1 of 14 APPENDIX REPORT Project No. SHT2210059201EW Radio Specification Bluetooth BLE Test sample No. YPHT22100592001 Model No. ClearDryve 220a Start test date 2022-12-02 Finish date 2022-12-02 Temperature 25.9°C Humidity 35% Test Engineer Xiaoxiao Li Auditor Appendix clause Test item Result A Peak Output Power PASS B Power Spectral Density PASS C 6 dB Bandwidth PASS D 99% Occupied Bandwidth PASS E Duty cycle PASS F Band edge and Spurious Emissions (conducted) PASS Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 2 of 14 Appendix A：Peak Output Power Type Channel Peak Output power (dBm) Average Output power (dBm) Limit (dBm) Result BT-BLE 00 8.35 8.16 ≤ 30.00 Pass 19 8.35 8.31 39 8.87 8.79 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 3 of 14 CH00 Date: 2.DEC.2022 09:14:21 CH19 Date: 2.DEC.2022 09:19:31 CH39 Date: 2.DEC.2022 09:22:12 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 4 of 14 Appendix B：Power Spectral Density Type Channel Power Spectral Density(dBm/3KHz) Limit (dBm/3KHz) Result BT-BLE 00 -6.85 ≤8.00 Pass 19 -6.55 39 -6.06 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 5 of 14 CH00 Date: 2.DEC.2022 09:14:54 CH19 Date: 2.DEC.2022 09:20:04 CH39 Date: 2.DEC.2022 09:22:44 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 6 of 14 Appendix C：6dB bandwidth Type Channel 6dB Bandwidth(kHz) Limit (kHz) Result BT-BLE 00 784.00 ≥500 Pass 19 784.00 39 782.00 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 7 of 14 CH00 Date: 2.DEC.2022 09:14:00 CH19 Date: 2.DEC.2022 09:19:13 CH39 Date: 2.DEC.2022 09:21:54 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 8 of 14 Appendix D：99% Occupied Bandwidth Type Channel 99% Occupied Bandwidth(MHz) Limit (kHz) Result BT-BLE 00 1.04 - Pass 19 1.04 39 1.04 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 9 of 14 CH00 Date: 2.DEC.2022 09:14:12 CH19 Date: 2.DEC.2022 09:19:22 CH39 Date: 2.DEC.2022 09:22:03 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 10 of 14 Appendix E：Duty cycle Test Frequency （MHz） T on time for single burst (ms) T period (ms) Duty cycle 1/T on time (kHz) 2440 0.39 0.62 62.9% 2.6 Date: 2.DEC.2022 09:19:00 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 11 of 14 Appendix F：Band edge and Spurious Emissions (conducted) Test Item: Band edge CH00 Date: 2.DEC.2022 09:15:03 CH39 Date: 2.DEC.2022 09:22:54 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 12 of 14 Test Item: SE CH00 Reference level Date: 2.DEC.2022 09:17:40 CH00 30MHz~1000MHz Date: 2.DEC.2022 09:17:56 CH00 1GHz~26GHz Date: 2.DEC.2022 09:18:12 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 13 of 14 CH19 Reference level Date: 2.DEC.2022 09:20:11 CH19 30MHz~1000MHz Date: 2.DEC.2022 09:20:27 CH19 1GHz~26GHz Date: 2.DEC.2022 09:20:43 Project No.: SHT2210059201EW Radio Specification: Bluetooth BLE Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 14 of 14 CH39 Reference level Date: 2.DEC.2022 09:23:01 CH39 30MHz~1000MHz Date: 2.DEC.2022 09:23:17 CH39 1GHz~26GHz Date: 2.DEC.2022 09:23:33 --------End of Report--------

Antenna test report Client ：AONI Project name:B073 Radiation frequency ：Hui Pang Day ：2021.10.09 Edition ： 2 Laboratory test environment and equipment Test project device under test S11、S12 、VSWR 、LOSS网络分析仪E5071B、E5062A Efficiency、Gain 3D Radiation Pattern Satimo SG16暗室、GP7*4*3暗室、E5071B TRP、TIS Satimo SG16暗室、GP7*4*3暗室、8960 、 CMW500、MT8820C、E4438C、 Introduction of project commissioning machine type Bluetooth headset Spectrum information Antenna form Match the change Antenna type and frequency band information antennae 2400-2480M no alternate material Steel plate antenna Antenna matching circuit RF Module E1E3 Antenna main antenna ElementValue appended drawings show E1(0201) E2(0201) E3(0201) E2 ChannelTRP(dBm)TIS (dBm) 0 5.3 -80.4 39 6.6-82.3 78 7.2-83.9 Active antenna test data 2# ChannelTRP(dBm)TIS (dBm) 0 5.6 -80.6 39 6.5-82.2 78 7.4-82.5 1# Passive antenna test data 1# 2# Passive antenna test pattern 1# Passive antenna test pattern 1# Passive antenna test pattern 2# Passive antenna test pattern 2# Radio frequency ： Hui Pang Phone ：13819148423 Address： Second floor, Yulong Office Building, Longcheng Industrial Zone, No. 440, Longguan Avenue, Longhua District contact information

TEST SETUP PHOTOS Radiated Emission AC Conducted Emission