Y9ZMT4610BLitecom Plus Headset

TM WS ™ LiteCom Plus Headset LiteCom Plus Headset WS ™ LiteCom Plus Headset LiteCom Plus Headset B:1B:2B:3 B:4B:5B:6 B:11 B:10 C:1 B:8B:9 D:3D:2D:1 E:1E:2 C:2 3mm B:7 (F) (F:15) (F:10) (F:11) (F:12) (F:3) (F:2) (F:9) (F:8) (F:5) (F:4) (F:6) (F:7) (F:1) (F:17) (F:18) Headband models: MT73H7A4610WS6NA, MT73H7A4610NA (F:21) (F:19) (F:20) (F:16) (F:14) Neckband MT73H7B4610WS6NA, MT73H7B4610NA Helmet attachment/Hardhat MT73H7P3E4610WS6NA, MT73H7P3E4610NA (F:13) 1 2 1 2 “Channel” “Radio volume” “Ambient listening” *“Phone volume” *“Streaming volume” *“Bluetooth ® radio volume” OR OR “Bluetooth ® paring on” 2 s~0.5 s ~0.5 s x 2 ~0.5 s~0.5 s “Pairing complete” “Connected” “Power on” “Power off”. 2x * Only WS TM (Bluetooth ® ) models Fig.1 Fig.2Fig.3*Fig.4 Fig.6*Fig.7 Fig.5 Fig.8 “Sub-Menu” “VOX” “Sub channel” “Squelch” “Power” *“Bluetooth ® pairing, *For pairing press plus button” “English (Language)” OR “Sub-Menu” “Bluetooth ® pairing, for pairing press plus button” “Bluetooth ® paring on” OR + “Set-Up Menu” “B C L O”” “Max transmission time” “Automatic power off” “Microphone input” “External input sensitivity” *“Bluetooth ® streaming” *“Bluetooth ® Multipoint” “Reset, for reset hold Plus button for two seconds” “Pairing complete” “Connected” 1 s ~0.5 s~0.5 s ~2 s ~0.5 s~0.5 s 1 s ~0.5 s ~0.5 s x 2 2x * Only WS TM (Bluetooth ® ) models Fig.9 Fig.10 *Fig.11 3M™ PELTOR™ WS TM LiteCom Plus Headset 3M™ PELTOR™ LiteCom Plus Headset EN 1-8 ES 9-16 FR 17-25 1 EN 3M™ PELTOR™ WS TM LiteCom Plus Headset MT73H7A4610WS6NA, MT73H7P3E4610WS6NA, MT73H7B4610WS6NA (with Bluetooth ® ) 3M™ PELTOR™ LiteCom Plus Headset MT73H7A4610NA, MT73H7P3E4610NA, MT73H7B4610NA (without Bluetooth ® ) INTRODUCTION Congratulations and thank you for choosing 3M™ PELTOR™ communication solutions! Welcome to the next generation of protective communication. INTENDED USE These 3M™ PELTOR™ headsets are intended to provide workers with protection against hazardous noise levels while allowing the user to communicate with built-in two-way radio and/or an external radio and hear the surroundings via the ambient microphones. The WS TM models also provide Bluetooth ® communication. It is expected that all users read and understand the provided user instructions as well as be familiar with the use of this device. IMPORTANT Please read, understand, and follow all safety information in these instructions prior to use. Retain these instructions for future reference. For additional information or any questions, contact 3M Technical Services (contact information listed on the last page). ! WARNING This hearing protector helps reduce exposure to hazardous noise and other loud sounds. Misuse or failure to wear hearing protection at all times when exposed to hazardous noise may result in hearing loss or injury. For correct use, consult supervisor and User Instructions, or call 3M Technical Services. If your hearing seems dulled or you hear a ringing or buzzing during or after any noise exposure (including gunfire), or for any other reason you suspect a hearing problem, leave the noisy environment immediately and consult a medical professional and/or your supervisor. Failure to follow these instructions may result in serious injury or death: a. Listening to music or other audio communication may reduce your situational awareness and ability to hear warning signals. Stay alert and adjust the audio volume to the lowest acceptable level. b. To reduce the risks associated with igniting an explosion, do not use this product in a potentially explosive atmosphere. Failure to follow these instructions may reduce the protection provided by the earmuff/earplug and may result in hearing loss: a. U.S. EPA specifies the NRR as the measure of hearing protector noise reduction. However, 3M makes no warranties as to the suitability of the NRR for this purpose. 3M strongly recommends personal fit testing of hearing protectors. Research suggests that users may receive less noise reduction than indicated by the attenuation label value(s) on the packaging due to variation in fit, fitting skill, and motivation of the user. Refer to applicable regulations for guidance on how to adjust attenuation label values. It is recommended that the NRR be reduced by 50% to better estimate typical protection. b. Ensure the hearing protector is properly selected, fit, adjusted, and maintained. Improper fit of this device will reduce its effectiveness in attenuating noise. Consult the enclosed instructions for proper fit. c. Inspect the hearing protector before each use. If damaged, select an undamaged hearing protector or avoid the noisy environment. d. When additional personal protective equipment is necessary (e.g. safety glasses, respirators, etc.), select flexible, low profile temples or straps to minimize interference with the earmuff cushion. Remove all other unnecessary articles (e.g. hair, hats, jewelry, headphones, hygiene covers, etc.) that could interfere with the seal of the earmuff cushion and reduce the protection of the earmuff. e. Do not bend or reshape the headband or neckband, and ensure there is adequate force to hold the earmuffs firmly in place. f.The output of the electrical audio circuit of this hearing protector may exceed the daily limit sound level. Adjust the audio volume to the lowest acceptable level. Sound levels from any connected external device such as 2-way radios and phones may exceed safe levels and must be appropriately limited by the user. Always use external devices at the lowest sound level possible for the situation and limit the amount of time you are exposed to unsafe levels as determined by your employer and applicable regulations. If your hearing seems dulled or you hear a ringing or buzzing during or after any sound exposure (including gunfire), or for any other reason you suspect a hearing problem, go to a quiet environment immediately and consult a medical professional and/or your supervisor. g. Earmuffs, and in particular cushions, may det…

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3M Company ADD:Personal Safety Division 3M Center, St. Paul Minnesota United States Tel: 651-778-6336 Fax: 651-778-6336 Email: [email protected] Date: 2021-02-25 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Declaration letter Dear Sir or Madam, We, 3M Company hereby declare that our product Litecom Plus Headset; Model number: MT73H7A4610NA (FCC ID: Y9ZMT4610B), BT module is removed on the basis of the original certification(FCC ID: Y9ZMT4610W6), the other has not changed, the data can be shared. Sincerely, Signature: Yuriy Litvinov Lead EMC engineer

3M Company Personal Safety Division 3M Center, St. Paul Minnesota United States Tel: 651-778-6336 Fax: 651-778-6336 Email: [email protected] Product Similarity Declaration 2021-01-20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, 3M Company hereby declare that we have a product named as Litecom Plus Headset (model: MT73H7A4610NA,FCC ID: Y9ZMT4610B) was tested by BACL, Meanwhile, for our marketing purpose, we would like to list a series model (MT73H7*4610NA (*means A, B or P3E) )on reports and certificate. The difference among them are the headband, neckband and Helmet attachment as well as country specific markings. No other changes were made to them. We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Sincerely Yours, Signature: Yuriy Litvinov Lead EMC engineer

3M Company ADD:Personal Safety Division 3M Center, St. Paul Minnesota United States Tel: 651-778-6336 Fax: 651-778-6336 Email: [email protected] FCC Confidential Authorization Date: 2021-01-20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: Y9ZMT4610B In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, 3M Company 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: Yuriy Litvinov Lead EMC engineer

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 1 of 4 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 2 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 3 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 4 of 4

EXHIBIT A - FCC ID LABEL AND LOCATION 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)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 1 of 9 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS FRS Antenna Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 2 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 3 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 4 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 5 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 6 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 7 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 8 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200427009-RFA1 Page 9 of 9

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200427009-00 FCC Part 95 Page 7 of 7 FCC §1.1307 (b) (1) &§2.1093 – RF EXPOSURE Applicable Standard According to FCC §2.1093 and §1.1307(b) (1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB 447498 D01 General RF Exposure Guidance 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 1. f(GHz) is the RF channel transmit frequency in GHz. 2. Power and distance are rounded to the nearest mW and mm before calculation. 3. The result is rounded to one decimal place for comparison. 4. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test Exclusion. For worst case: Frequency (MHz) Maximum Tune-up power Calculated Distance (mm) Calculated Value Threshold (1-g SAR) SAR Test Exclusion (dBm) (mW) 467.6375 20 100 40 1.7 3.0 Yes Result: Compliance Calculated Distance: 40mm ***** END OF REPORT *****

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. BACL 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. FCC PART 95 MEASUREMENT AND TEST REPORT For 3M Company Personal Safety Division 3M Center, St. Paul Minnesota, United States FCC ID: Y9ZMT4610B Report Type: Original Report Product Type: Litecom Plus Headset Report Number: RSZ200427009-00 Report Date: 2021-01-21 Reviewed By: Jacob Kong RF En gineer Test Laboratory: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200427009-00 FCC Part 95 Page 2 of 7 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .................................................................................... 3 OBJECTIVE ................................................................................................................................................................... 3 TEST METHODOLOGY .................................................................................................................................................. 3 MEASUREMENT UNCERTAINTY .................................................................................................................................... 4 TEST FACILITY ............................................................................................................................................................. 4 SYSTEM TEST CONFIGURATION .......................................................................................................................... 5 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 5 DESCRIPTION OF CHANNEL LIST .................................................................................................................................. 5 SUMMARY OF TEST RESULTS ............................................................................................................................... 6 FCC §1.1307 (b) (1) &§2.1093 – RF EXPOSURE .......................................................................................................... 7 APPLICABLE STANDARD .............................................................................................................................................. 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200427009-00 FCC Part 95 Page 3 of 7 GENERAL INFORMATION Product Description for Equipment Under Test (EUT) Product Litecom Plus Headset Tested Model MT73H7A46106NA Multiple Models MT73H7*4610NA (*means A, B or P3E) Model Difference Refer to the DoS letter Frequency Range FRS: 462.5500-462.7250MHz, 467.5625-467.7125 MHz Transmit Power 19.10 dBm Testing Bandwidth 9.936kHz Modulation Technique FM Antenna Specification Internal Antenna Voltage Range DC 3.7 V from battery or DC 5.0V from adapter Sample/EUT Status Good condition Adapter information Model: DSA-5PFU1-05-FCA 050100 Input: AC 100-240V, 50/60Hz, 0.2A Output: DC 5 V, 1A Objective This test report is in accordance with Part 2 and Part 95, Subpart A & Subpart B of the Federal Communication Commissions rules. Test Methodology All tests and measurements indicated in this document were performed in accordance with Part 95 Subpart A, Subpart B of the Federal Communication Commissions rules with ANSI C63.26-2015, American National Standard for Compliance Testing of Transmitters Used in Licensed Radio Services. All emissions measurement was performed at Bay Area Compliance Laboratories Corp. (Shenzhen). The radiated testing was performed at an antenna-to-EUT distance of 3 meters. Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200427009-00 FCC Part 95 Page 4 of 7 Measurement Uncertainty Parameter Uncertainty Occupied Channel Bandwidth ±5% RF Output Power with Power meter ±0.73dB RF conducted test with spectrum ±1.6dB Emissions, Radiated Below 1GHz ±4.75dB Above 1GHz ±4.88dB Temperature ±1°C Humidity ±6% Supply voltages ±0.4% Note: The extended uncertainty given in this report is obtained by combining the standard uncertainty times the coverage factor K with the 95% confidence interval. Otherwise required by the applicant or Product Regulations, Decision Rule in this report did not consider the uncertainty. Test Facility The Test site used by Bay Area Compliance Laboratories Corp. (Shenzhen) to collect test data is located on the 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China. The test site has been approved by the FCC under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 342867,the FCC Designation No. : CN1221. The test site has been registered with ISED Canada under ISED Canada Registration Number 3062B. Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200427009-00 FCC Part 95 Page 5 of 7 SYSTEM TEST CONFIGURATION Description of Test Configuration The system was configured …

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Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. * This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*” . The information marked # is provided by the applicant, the laboratory is not responsible for its authenticity. FCC PART 95 MEASUREMENT AND TEST REPORT For 3M Company Personal Safety Division 3M Center, St. Paul Minnesota, United States FCC ID: Y9ZMT4610W6 Report Type: Original Report Product Type: WS™ Litecom Plus Headset Report Number: RSZ190505001-00C Report Date: 2019-07-10 Reviewed By: Jacob Kong RF En gineer Test Laboratory: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190505001-00C FCC Part 95 Page 2 of 30 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .................................................................................... 3 OBJECTIVE ................................................................................................................................................................... 3 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 3 TEST METHODOLOGY .................................................................................................................................................. 3 MEASUREMENT UNCERTAINTY .................................................................................................................................... 4 TEST FACILITY ............................................................................................................................................................. 4 SYSTEM TEST CONFIGURATION .......................................................................................................................... 5 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 5 DESCRIPTION OF CHANNEL LIST .................................................................................................................................. 5 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 5 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 5 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 6 SUMMARY OF TEST RESULTS ............................................................................................................................... 7 TEST EQUIPMENT LIST ........................................................................................................................................... 8 FCC §1.1307 (b) (1) &§2.1093 – RF EXPOSURE .......................................................................................................... 9 APPLICABLE STANDARD .............................................................................................................................................. 9 FCC §95.587(b)(1) – ANTENNA REQUIREMENT ................................................................................................ 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC §2.1046 & §95.567 - RF OUTPUT POWER ..................................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 TEST PROCEDURE ...................................................................................................................................................... 12 TEST DATA ................................................................................................................................................................ 12 FCC §2.1047 & §95.575 - MODULATION CHARACTERISTIC .......................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 TEST PROCEDURE ...................................................................................................................................................... 13 TEST DATA ................................................................................................................................................................ 13 FCC §2.1049 & §95.573 - AUTHOURIZED BANDWIDTH AND EMISSION MASK ........................................ 24 APPLICABLE STANDARD ............................................................................................................................................ 24 TEST PROCEDURE ...................................................................................................................................................... 24 TEST DATA ....................................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Radiated Emissions View (Below 1 GHz) Radiated Emissions View (Above 1 GHz)