2A34USHENNAN01OPENEAR Solo Pro

FCC Warning Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ‐‐ Reorient or relocate the receiving antenna. ‐‐ Increase the separation between the equipment and receiver. ‐‐ Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. ‐‐ Consult the dealer or an experienced radio/TV technician for help.

< Shenzhen Shennan Information Network Technology Co., Ltd. > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD21046 Date: Jan. 18, 2022 Subject; Request for Long Term Confidentiality FCC ID: 2A34USHENNAN01 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 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: Zhong Liu Title: Manager

Model Difference Declaration To Whom It May Concern, We, Shenzhen Shennan Information Network Technology Co., Ltd. Product: OPENEAR Solo Pro Trade Name: N/A Model Number: Mionbel M1, OPENEAR Wave, Solo, Duet Plus, Quintet, Solo Pro, Solo Plus All model’s the function, software and electric circuit are the same, only with a product color and model named different. Test sample model: Mionbel M1. Please contact me if you have any question. Name: Zhong Liu Date: Jan. 18, 2022 Title: Manager Signature of applicant:

Model: Mionbel M1 Model: Mionbel M1 Model: Mionbel M1 Model: Mionbel M1

FCC ID LABEL: Label Location: FCC ID: 2A34USHENNAN01 Product Name: OPENEAR Solo Pro Model Name: Mionbel M1 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. Long: 3cm Width: 2cm

Model: Mionbel M1 Model: Mionbel M1 Model: Mionbel M1 Model: Mionbel M1 Chip Antenna

Page 1 of 40 Report No.: UNIA21122811ER-61 FCC RADIO TEST REPORT FCC ID: 2A34USHENNAN01 Sample： OPENEAR Solo Pro Trade Name： N/A Main Model： Mionbel M1 Additional Model： OPENEAR Wave, Solo, Duet Plus, Quintet, Solo Pro, Solo Plus Report No.： UNIA21122811ER-61 Prepared for Shenzhen Shennan Information Network Technology Co., Ltd. Rm 1601,Guoxin Investment Bldg,No.07 Gaoxin South 7th Rd,High-tech Zone,Nanshan,Shenzhen,China Prepared by Shenzhen United Testing Technology Co., Ltd. 2F, Annex Bldg, Jiahuangyuan Tech Park, #365 Baotian 1 Rd, Tiegang Community, Xixiang Str, Bao'an District, Shenzhen, China Page 2 of 40 Report No.: UNIA21122811ER-61 TEST RESULT CERTIFICATION Applicant .............................. : Shenzhen Shennan Information Network Technology Co., Ltd. Address ................................. : Rm 1601,Guoxin Investment Bldg,No.07 Gaoxin South 7th Rd,High-tech Zone,Nanshan,Shenzhen,China Manufacturer ........................ : SHENZHEN ALEX TECHNOLOGY CO., LTD. Address ................................. : UNIT 407-409, HEHUAN BUSINESS CENTER, BLD.36 YINTIAN GONGYE RD, BAO'AN, Shenzhen, China Product description Product ....................................... : OPENEAR Solo Pro Trade Name ........................... : N/A Model Name .......................... : Mionbel M1, OPENEAR Wave, Solo, Duet Plus, Quintet, Solo Pro, Solo Plus Test Methods ........................ : FCC Rules and Regulations Part 15 Subpart C Section 15.249, ANSI C63.10: 2013 This device described above has been tested by Shenzhen United Testing Technology Co., Ltd., and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of UNI, this document may be altered or revised by Shenzhen United Testing Technology Co., Ltd., personnel only, and shall be noted in the revision of the document. Date of Test ........................................... : Date (s) of performance of tests ............. : Dec. 28, 2021 ~ Jan. 14, 2022 Date of Issue .......................................... : Jan. 18, 2022 Test Result.............................................. : Pass Prepared by: Kahn yang/Editor Reviewer: Sky dong/Supervisor Approved & Authorized Signer: Liuze/Manager Page 3 of 40 Report No.: UNIA21122811ER-61 Table of Contents Page 1 TEST SUMMARY 4 2 GENERAL INFORMATION 6 2.1 GENERAL DESCRIPTION OF EUT 6 2.2 CARRIER FREQUENCY OF CHANNELS 7 2.3 TEST MODE 7 2.4 TEST SETUP 8 2.5 DESCRIPTION TEST PERIPHERAL AND EUT PERIPHERAL 8 2.6 MEASUREMENT INSTRUMENTS LIST 9 3 CONDUCTED EMISSION 10 3.1 TEST LIMIT 10 3.2 TEST SETUP 10 3.3 TEST PROCEDURE 11 3.4 TEST RESULT 11 4 RADIATED EMISSION 14 4.1 TEST LIMIT 14 4.2 TEST SETUP 15 4.3 TEST PROCEDURE 16 4.4 TEST RESULT 16 5 BAND EDGE 28 5.1 TEST LIMIT 28 5.2 TEST PROCEDURE 28 5.3 TEST RESULT 28 6 OCCUPIED BANDWIDTH 31 6.1 TEST SETUP 31 6.2 TEST PROCEDURE 31 6.4 TEST RESULT 31 7 ANTENNA REQUIREMENT 38 8 PHOTO OF TEST 39 8.1 RADIATED EMISSION 39 8.2 CONDUCTED EMISSION 40 Page 4 of 40 Report No.: UNIA21122811ER-61 1 TEST SUMMARY 1.1 TEST PROCEDURES AND RESULTS ITEM STANGARD RESULT CONDUCTED EMISSION FCC Part 15.207 COMPLIANT RADIATED EMISSION FCC Part 15.209/15.249 COMPLIANT BAND EDGE FCC Part 15.249/15.205 COMPLIANT OCCUPIED BANDWIDTH FCC Part 15.215 COMPLIANT ANTENNA REQUIREMENT FCC Part 15.203 COMPLIANT 1.2 TEST FACILITY Test Firm : Shenzhen United Testing Technology Co., Ltd. Address : 2F, Annex Bldg, Jiahuangyuan Tech Park, #365 Baotian 1 Rd, Tiegang Community, Xixiang Str, Bao'an District, Shenzhen, China The testing quality ability of our laboratory meet with "Quality Law of People's Republic of China" Clause 19.The testing quality system of our laboratory meets with ISO/IEC-17025 requirements. This approval result is accepted by MRA of APLAC. Our test facility is recognized, certified, or accredited by the following organizations: A2LA Certificate Number: 4747.01 The EMC Laboratory has been accredited by A2LA, and in compliance with ISO/IEC 17025:2017 General Requirements for testing Laboratories. FCC Registration Number: 674885 The EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications commission. IC Registration Number: 21947 The EMC Laboratory has been registered and fully described in a report filed with the (IC) Industry Canada. Page 5 of 40 Report No.: UNIA21122811ER-61 1.3 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. A. Conducted Measurement: Test Site Method Measurement Frequency Range U, (dB) NOTE UNI ANSI 9kHz ~ 150kHz 2.96 150kHz ~ 30MHz 2.44 B. Radiated Measurement: Test Site Method Measurement Frequency Range U, (dB) NOTE UNI ANSI 9kHz ~ 30MHz 2.50 30MHz ~ 1000MHz 4.80 Above 1000MHz 4.13 Page 6 of 40 Report No.: UNIA21122811ER-61 2 GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product: OPENEAR Solo Pro Trade Name: N/A Main Model: Mionbel M1 Additional Model: OPENEAR Wave, Solo, Duet Plus, Quintet, Solo Pro, Solo Plus Model Difference: All model’s the function, software and electric circuit are the same, only with a product color and model named different. Test sample model: Mionbel M1. FCC ID: 2A34USHENNAN01 Operation Frequency: 2402MHz~2480MHz Number of Channels: 79CH Modulation Type: GFSK, π/4 DQPSK, 8DPSK Antenna Type: Chip Antenna Antenna Gain: 3dBi Battery: DC 3.7V, 230mAh Adapter: N/A Power Source: DC 3.7V from Li-battery or DC 5.0V from adapter with AC 120(240)V/60Hz Page 7 of 40 Report No.: UNIA21122811ER-61 2.2 CARRIER FREQUENCY OF CHANNELS Channel List Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) 00 2402 21 2423 42 2444 63 2465 01 2403 22 2424 43 2445 64 2466 02…

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Model: Mionbel M1 Radiated Emission test Model: Mionbel M1 Conducted Emission test