Z4C-ML85Wireless Headphone

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Agent Authorization Company: Minelab Electronics Pty Ltd Address: 2 Second Avenue, Mawson Lakes, South Australia, 5095, Australia Product Name: Wireless Headphone Model Number(s): ML85 Product Description: Wireless Headphone We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Dec. 06 2022 Name: Philip Beck Title: General Manager Company: Minelab Electronics Pty Ltd

Request for Confidentiality Date: 27 June 2022 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 24927-ML85 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 Operational Description Parts List 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 pursuant to 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, Philip Beck Manager- Engineering & Operations

Report No.: AGC00798220601AP04 Page 1 of 4 EXTERNAL PHOTOS All VIEW OF EUT TOP VIEW OF EUT Report No.: AGC00798220601AP04 Page 2 of 4 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC00798220601AP04 Page 3 of 4 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC00798220601AP04 Page 4 of 4 RIGHT VIEW OF EUT ****************************************End of Report****************************************

FCC ID and IC Label Location 10mm*10mm FCC ID: Z4C-ML85 IC: 24927-ML85 HVIN: ML85

Report No.: AGC00798220601AP04 Page 1 of 5 INTERNAL PHOTOS OPEN VIEW OF EUT (FIGURE 1) OPEN VIEW OF EUT (FIGURE 2) Report No.: AGC00798220601AP04 Page 2 of 5 OPEN VIEW OF EUT (FIGURE 3) OPEN VIEW OF EUT (FIGURE 4) Report No.: AGC00798220601AP04 Page 3 of 5 OPEN VIEW OF EUT (FIGURE 5) ANTENNA CLOSE-UP PHOTO-1 BT Antenna Report No.: AGC00798220601AP04 Page 4 of 5 INTERNAL VIEW OF EUT (FIGURE 1) INTERNAL VIEW OF EUT (FIGURE 2) Report No.: AGC00798220601AP04 Page 5 of 5 INTERNAL VIEW OF EUT (FIGURE 3) INTERNAL VIEW OF EUT (FIGURE 4) ****************************************End of Report****************************************

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Wireless Headphone Model Name ML85 FCC ID Z4C-ML85 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v07 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. Where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation 3. CALCULATION 1M P t =-0.561dBm=0.87mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(0.87mW /5mm) .[√2.480(GHz)]= 0.27<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 2M P t =-0.547dBm=0.88mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(0.88mW /5mm) .[√2.480(GHz)]= 0.28<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Antenna Specifications 3A03, Block 1, 182 Design Park, NO 182, Bulan Rd, Buji Longgang distr ict, Shenzhen China xianglong fang Antenna：ML85-ANT Page 1 of 10 Shenzhen Rambo Weiye Electronic Co., Ltd Pag e 2 of 10 1.General Information 1.1 Identification of the Responsible Testing Laboratory Company Name: Shenzhen Morlab Communications Technology Co., Ltd. Department:Morlab Laboratory Address: FL.3, Building A, FeiYang Science Park, No.8 LongChang Road, Block 67, BaoAn District, ShenZhen, GuangDong Province, P. R. China 518101 Responsible Test Lab Manager: Mr. Zeng Dexin Telephone: +86 755 36698555 Facsimile: +86 755 36698525 1.2 Identification of the Responsible Testing Location Name: Shenzhen Morlab Communications Technology Co., Ltd. Address: FL.3, Building A, FeiYang Science Park, No.8 LongChang Road, Block 67, BaoAn District, ShenZhen, GuangDong Province, P. R. China 518101 1.3 List of Test Equipments No. Type Specification 1 8960-5515C System Simulator Manufacturer: Agilent 2 CMU 200 System Simulator Manufacturer: R&S 3 E5071B Vector Network Analyzer Manufacturer: Agilent 4 4*4*4 Full Anechoic Chamber Manufacturer: Satimo 5 SG24 Multi-probe Antenna Measurement System Manufacturer: Satimo Page 3 of 10 2.Technical Information Note: Provide by applicant. 2.1 Applicant Information Company: Shenzhen Rambo Weiye Electronic Co., Ltd Address: Contact: 3A03, Block 1, 182 Design Park, NO 182, Bulan Rd, Buji Longgang district, Shenzhen China xianglong fang Telephone:13823556470 Fax: E-mail: NA N/A 2.2 Antenna under Test (AUT) Description Brand Name: NA Model Name: ML85-Antenna 2.2.1 Photographs of the EUT Please reference annex A. 2.2.2 Identification of all used EUTs The EUT Identity consists of numerical and letter characters (see the table below), the first five numerical characters indicates the Type of the EUT defined by Morlab, the next letter character indicates the test sample, and the following two numerical characters indicates the software version of the test sample. EUT Identity Memo AUT01 N/A Pag e 4 of 10 3.Test Results 3.1 Applied Reference Documents Leading reference documents for testing: No. Identity Document Title 1 IEEE149-1979 IEEE Standard Test Procedures for Antennas 3.2 Test Conditions Test Environment Conditions： 1) Temperature：23°C 2)Relative Humidity：49％ Test Setup: Page 5 of 10 3.3 Test Results lists 3.3.1 Gain Frequency Gain(dBi) 2400MHz -0.780727 2410MHz -0.935094 2420MHz -1.44324 2430MHz -1.30451 2440MHz -1.39918 2450MHz -1.26569 2460MHz 1.00263 2470MHz -0.93907 2480MHz -0.80215 2490MHz -0.94749 2500MHz -1.03802 Report NO.: SZ14010061E01 Pag e 6 of 10 Annex A. Photographs 1.Test environment 2.EUT Pag e 7 of 10 Figures 2D Radiation Pattern 1.Phi=0° 2.Phi=90° Pag e 8 of 10 3.Theta=90° Pag e 9 of 10 3D Radiation Pattern 2400MHz 2440MHz Pag e 10 of 10 2480MHz ** END OF REPORT **

Report No.: AGC00798220601AP03 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC00798220601AP03 Page 2 of 2 AC POWER LINE CONDUCTED TEST SETUP RF CONDUCTED TEST SETUP ****************************************End of Report*************************************