2ARQZ-M910-2DECT Wireless Communication Headset

FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limit s set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. (For Base) The device has been tested and comply with FCC SAR limits.(For handset)

QA-FR-170-B Xiamen Mairdi Electronic Technology Co., Ltd ADD: Unit402, Building B, No.26 Xiangyue Road Torch(Xiangan) Industrial Park, Xiamen, China TEL: 0592-7177232 FAX: 0592-8265722 E-mail: [email protected] FCC Authorization Date: 2022-10-12 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We , Xiamen Mairdi Electronic Technology Co., Ltd, Hereby authorizes Shenzhen Accurate Technology Co., Ltd. to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Shenzhen Accurate Technology Co., Ltd. on our behalf shall have the same effect as our own action. We, 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. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Client’s signature Printed Name: cherry Ma Title: Sales Director

QA-FR-171-A Xiamen Mairdi Electronic Technology Co., Ltd ADD: Unit402, Building B, No.26 Xiangyue Road Torch(Xiangan) Industrial Park, Xiamen, China TEL: 0592-7177232 FAX: 0592-8265722 E-mail: [email protected] FCC Confidential Authorization Date: 2022-10-12 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2ARQZ-M910-2 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Xiamen Mairdi Electronic Technology Co., Ltd hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Printed Name: Cherry Ma Title: Sales Director

Xiamen Mairdi Electronic Technology Co., Ltd ADD: Unit402, Building B, No.26 Xiangyue Road Torch(Xiangan) Industrial Park, Xiamen, China TEL: 0592-7177232 FAX: 0592-8265722 E-mail: [email protected] DECLARATION OF SIMILARITY Date: 2022-10-12 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: We, Xiamen Mairdi Electronic Technology Co., Ltd, hereby declare that the product: DECT Wireless Communication Headset, FCC ID: 2ARQZ-M910-2. model: M920, M930, M940, M950, M960, M970, M980 are electrically identical with the model: M910 which was tested by Shenzhen Accurate Technology Co., Ltd. with the same electromagnetic emissions and electromagnetic compatibility characteristics. A description of the differences between those models and that are declared similar are as follows: They are the same product, just different model name, the rest are the same. Please contact me should there be need for any additional clarification or information. Best Regards, Signature: Printed Name: Cherry Ma Title: Sales Director

Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF External Photos Page 1 of 6 External Photos Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF External Photos Page 2 of 6 Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF External Photos Page 3 of 6 Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF External Photos Page 4 of 6 Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF External Photos Page 5 of 6 Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF External Photos Page 6 of 6

Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF LABEL AND LOCATION Page 1 of 1 FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF Internal Photos Page 1 of 4 Internal photos Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF Internal Photos Page 2 of 4 Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF Internal Photos Page 3 of 4 Antenna 0 Antenna 1 Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF Internal Photos Page 4 of 4

Shenzhen Accurate Technology Co., Ltd. Report No.: XMTN1220112-01783E-RF-00 Version 55: 2021-11-09 Page 10 of 47 FCC-RF §1.1307 (b) (3) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart subpart 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. According to KDB 447498 D04 Interim General RF Exposure Guidance MPE-Based Exemption: General frequency and separation-distance dependent MPE-based effective radiated power(ERP) thresholds are in Table B.1 [Table 1 of § 1.1307(b)(1)(i)(C)] to support an exemptionfrom further evaluation from 300 kHz through 100 GHz. Ris the minimum separation distance in meters f = frequency in MHz Result Mode Frequency (MHz) Tune up conducted power Antenna GainERP Evaluation Distance (m) ERP Limit (W) (dBm) (dBi)(dBd)(dBm)(W) DECT 1920-1930 20.8 -4.3 -6.45 14.35 0.027 0.2 0.768 Note: 1. The tune up conducted power and antenna gain was declared by the applicant. To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant.

Note: This report may contain data that are not covered by the A2LA ★ accreditation and are marked with an asterisk “ ”. Shenzhen Accurate Technology Co., Ltd. is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 55: 2021-11-09 Page 1 of 47 FCC-RF TEST REPORT Applicant Name : Xiamen Mairdi Electronic Technology Co., Ltd Address : Unit402, Building B, No.26 Xiangyue Road, Torch(Xiangan) Industrial Park, Xiamen, China Report Number : XMTN1220112-01783E-RF-00 FCC ID: 2ARQZ-M910-2 Test Standard (s) FCC PART 15D Sample Description Product Type: DECT Wireless Communication Headset Model No.: M910 Multiple Model(s) No.: M920, M930, M940, M950, M960, M970, M980 (Please refer to DOS for Model difference) Trade Mark: MAIRDI Date Received: 2022/01/12 Report Date: 2022/08/04 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Roger Ling Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: XMTN1220112-01783E-RF-00 Version 55: 2021-11-09 Page 2 of 47 FCC-RF TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 LOCAL SUPPORT EQUIPMENT LIST AND DETAILS ........................................................................................................ 6 EXTERNAL I/O CABLE .................................................................................................................................................. 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 §1.1307 (B) (3) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) .......................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 RESULT ...................................................................................................................................................................... 10 § 15.317, § 15.203 ANTENNA REQUIREMENT ..................................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC§15.315 & §15.207 - CONDUCTED EMISSIONS ............................................................................................ 12 APPLICABLE STANDARD ............................................................................................................................................ 12 EUT SETUP ................................................................................................................................................................ 12 EMI TEST RECEIVER SETUP ....................................................................................................................................... 12 TEST PROCEDURE ...................................................................................................................................................... 13 CORRECTED FACTOR & MARGIN CALCULATION ....................................................................................................... 13 TEST RESULTS SUMMARY ..…

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Datum / Tester: Christian Burn Antenna Specification Model Name:Ant-M910-2 Max. Antenna Gain:-4.3dBi Manufacture:Zhongrui Precision Technology (Shenzhen) Co., LTD Address:Floor 2, Building 3, T iantong Industrial Park, Dalang Street, Longhua District, Shenzhen Horizontal and vertical diagram Messantenne deg. Horizontal(dBi) mW Vertical(dBi) mW 0 -4.3 87.1 -6.2 57.5 15 -4.6 72.4 -7 .0 70.8 30 -4.5 87.1 -5.3 85.1 45 -5.2 67.6 -5 .8 87.1 60 -6.8 83.2 -4.9 83.2 75 -8.5 67.6 -5.1 61.7 90 -8 .0 83.2 -6.5 55.0 105 -4.7 81.3 -9.5 75.9 120 -4.6 89.1 -11.8 81.3 135 -4.9 81.3 -10.5 87.1 150 -6.5 56.2 -11.0 75.9 165 -4.8 83.2 -12.7 70.8 180 -4.6 69.2 -11.6 91.2 195 -7.2 70.8 -11.4 77.6 210 -5.8 64.6 -10.9 46.8 225 -4.9 89.2 -11.4 51.3 240 -5 .0 83.2 -10.4 89.1 255 -7.2 51.3 -9.7 81.3 270 -5.3 79.4 -7 .0 77.6 285 -5.2 75.9 -6.8 75.9 300 -6.2 49.0 -8.8 69.2 315 -4.9 81.3 -6.8 66.1 330 -5.8 91.2 -6.6 77.6 345 -4.6 66.1 -5.9 79.4 position Horizontal(dBi) mW Vertical(dBi) mW Max. -4.3 91.2 -4.9 91.2 Ave -5.6 75.44 -8.5 73.9 BS Antenna diagramm Fixed Part, Antenna 0, Horizontal and Vertical diag. Christian Burn Datum / Tester:

Shenzhen Accurate Technology Co., Ltd. Project No.: XMTN1220112-01783E-RF Test Photos Page 1 of 1 Photo of Conducted Emission Measurement