2AF3W-1136235Emax Pro BT Comms

The 1136235 Caldwell Emax Pro BT Comms is a new generation protective communication solution. With an integrated, pre-programmed analog two-way radio, noise-cancelling microphone, and environment listening, the Caldwell Emax Pro BT Comms not only helps protect you against hazardous noise, but also makes it easy to communicate in noisy environments and helps promote auditory situational awareness. Hearing protection with built in two-way radio Environmental-listening technology Noise-cancelling boom microphone for clear speech transmission in noisy environments Environmental-listening technology Function: 1. Ambient noise reduction function and ambient microphone amplifier limit the 2. 3. 4. 5. The 1.【 2、 3、 4、 Par a ambient so Including 2 (CT). 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FCC This purs agai radi a caus will n telev enco •Reo •Incr •Con conn •Con Caut void This con d inter RF E After bluetoo Adjust the vo place. The m bient MODE Press”3”(M) C Stateme equipment ha uant to part 15 nst harmful int ate radio frequ se harmful inte not occur in a vision receptio ouraged to try orient or reloca rease the sepa nnect the equi nected. nsult the deale tion: Any chan your authority device compl ditions: (1) Thi rference receiv Exposure Infor oth connecte olume by pre maxium volum until you see ent as been tested 5 of the FCC R terference in a uency energy a erference to ra particular inst on, which can to correct the ate the receivi aration betwee pment into an er or an experi nges or modifi y to operate th lies with part 1 s device may ved, including rmation ed. You could ssing the 2 b me sound lev e below icon. d and found to Rules. These a residential in and, if not inst adio communic allation. If this be determined interference b ing antenna. en the equipm n outlet on a ci ienced radio/T fications to thi his equipment. 15 of the FCC not cause ha r interference t play music i n utton vel is 82 dB. o comply with limits are des nstallation. Th talled and use cations. Howe s equipment do d by turning th by one or mor ment and recei rcuit different TV technician is device not e . Rules. Opera rmful interfere that may caus n your mobile the limits for a igned to provi is equipment ed in accordan ever, there is n oes cause har he equipment re of the follow ver. from that to w for help. explicitly appro ation is subject ence, and (2) t se undesired o e, a Class B digit de reasonable generates, us nce with the in no guarantee t rmful interfere off and on, the wing measures which the rece oved by manu t to the followi this device mu operation. tal device, e protection ses and can structions, ma that interferen ence to radio o e user is s: iver is ufacturer could ing two ust accept any ay nce or d y The device has been evaluated to meet general RF exposure requirement. This equipment should be installed and operated with minimum distance 0mm between the radiator & your body. ISED Statement English:This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) T…

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CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2023-1-3> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2AF3W-1136235 1136235 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Michael Galloway/Quality Engineering Manager Company: AOB Products Company Address: 1800 North Route Z Suite A, Columbia, Missouri, United States, 65202 Phone: 5733476377 Fax: 5733476377 E-Mail: [email protected]

AOB Products Company 1800 North Route Z Suite A, Columbia, Missouri, United States, 65202 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023-1-3 To whom it may concern: We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AF3W-1136235 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Michael Galloway/Quality Engineering Manager Company: AOB Products Company Address: 1800 North Route Z Suite A, Columbia, Missouri, United States, 65202 Phone: 5733476377 Fax: 5733476377 E-Mail: [email protected]

Page 1 of 4 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. External Photos Photo 1 Photo 2 Page 2 of 4 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 4 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 Page 4 of 4 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 7 ------End------

Label &Label location Product name(PMN): Emax Pro BT Comms Model number(HVIN): 1136235 FCC ID: 2AF3W-1136235 IC: 29812-1136235 WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIOTELEPHONE SERVICE SIGNALS IS PROHIBITED UNDER FCC

Page 1 of 7 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Internal Photos Photo 1 Photo 2 FRSAntenna Page 2 of 7 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 7 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 BT Antenna Page 4 of 7 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 7 Photo 8 Page 5 of 7 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 9 Photo 10 Page 6 of 7 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 11 Photo 12 Page 7 of 7 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 13 ------End------

Page 1 of 3 Report No.: AIT22110413W3 MPE TEST REPORT FCC ID: 2AF3W-1136235 Equipment : Emax Pro BT Comms Brand Name : Caldwell Test Model : 1136235 Series Model : N/A Applicant : AOB Products Company Address : 1800 North Route Z Suite A, Columbia, Missouri, United States, 65202 Manufacturer : Wenzhou Only Electronics Co.,Ltd. Address : No.139 Jiangnan Avenue,Nanbin Street, Ruian, Wenzhou, Zhejiang (Room 401, 402, 501, 502, Building 23, Gexiang High-Tech Industrial Park) Date of Receipt : 2022.11.05 Date of Test : 2022.11.05-2022.11.21 Issued Date : 2022.11.21 Report Version : V1.0 Test Sample : Engineering Sample No.: AIT22110413-1 Standard(s) : FCC Title 4 7 Part 2. 1091 KDB 447498 001 General RF exposure guidance v06 Lab: Dongguan Yaxu (AiT) Technology Limited Add: No.22, Jinqianling 3rd Street, Jitigang, Huangjiang,Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 This device described above has been tested by Dongguan Yaxu (AiT) Technology Limited 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. Note: This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited, this document may be altered or revised by Dongguan Yaxu (AiT) Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement. Reviewed by: Approved by: Page 2 of 3 Report No.: AIT22110413W3 Simba huang Seal Chen 1. EVALUATION METHOD AND LIMIT According to $1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission's guidelines. According to $1.1310 and $2.1093 RF exposure requirementKDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 2. CALCULATION Page 3 of 3 Report No.: AIT22110413W3 Manufacturing Tolerance FM Frequency (MHz) Antenna 1 462.6375 462.6500 467.6375 Target (dBm) 3.0 3.0 3.0 Tolerance ± (dB) 1.0 1.0 1.0 [Bluetooth] GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3 -2 -1 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1 0 1 Tolerance ±(dB) 1.0 1.0 1.0 3. Evaluation Result Note: 1. Only the worst case recorded. 2. The 2.48GHz and 462.6375MHz band can transmit simultaneously ∑ of (the highest measured or estimated SARBT+SARFRS)/1.6 = (0.0668+0.0531)/1.6 = 0.1 < 1.0; 4. Conclusion ： Compliance the RF exposure requirement. ----END OF REPORT---- Frequency ( MHz) Max. Tune up Power ( dBm ) Max.Tune up Output Power ( mW) Test Exclusion Threshold Limit Results 462.6375 4.0 2.51 0.794 3 Pass 2480 2.0 1.58 0.501 3 Pass

Page 1 of 36 Report No.: AIT22110413W1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. TEST REPORT Client Information: Applicant: AOB Products Company Applicant add.: 1800 North Route Z Suite A, Columbia, Missouri, United States, 65202 Manufacturer: Wenzhou Only Electronics Co.,Ltd. Manufacturer add.: No.139 Jiangnan Avenue,Nanbin Street,Ruian,Wenzhou,Zhejiang(Room 401,402,501,502,Building 23,Gexiang High-Tech Industrial Park) Product Information: Product Name: Emax Pro BT Comms Model No./HVIN 1136235 Brand Name: Caldwell FCC ID: 2AF3W-1136235 IC: 29812-1136235 Applicable standards : FCC CFR Title 47 Part 15 Subpart C Section 15.247 RSS-247 Issue 2 RSS-Gen Issue 5 Prepared By: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang,Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 Date of Receipt: Nov. 04,2022 Date of Test: Nov. 04,2022~Nov. 22,2022 Date of Issue: Nov. 23,2022 Test Result: Pass This device described above has been tested by Dongguan Yaxu (AiT) Technology Limited and the test results show that the equipment under test (EUT) is in compliance with the FCC&iISED requirements. And it is applicable only to the tested sample identified in the report. Note: This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited, this document may be altered or revised by Dongguan Yaxu (AiT) Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement. Reviewed by: Approved by: Simba Huang Seal.chen Page 2 of 36 Report No.: AIT22110413W1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. 1 Contents Page COVER PAGE 1 CONTENTS .................................................................................................................................................................... 2 2 TEST SUMMARY .......................................................................................................................................................... 4 2.1 Statement of the Measurement Uncertainty .............................................................................. 4 2.2 Measurement Uncertainty ......................................................................................................... 4 3 TEST FACILITY ............................................................................................................................................................. 5 3.1 Deviation from standard ............................................................................................................ 5 3.2 Abnormalities from standard conditions .................................................................................... 5 3.3 Test Location ............................................................................................................................. 5 4 GENERAL INFORMATION ......................................................................................................................................... 6 4.1 Test frequencies ........................................................................................................................ 7 4.2 EUT Peripheral List ................................................................................................................... 8 4.3 Test Peripheral List ................................................................................................................... 8 4.4 TEST METHODOLOGY............................................................................................................ 9 4.5 Description of Test Modes ....................................................................................................... 10 5 EQUIPMENT USED DURING TEST ........................................................................................................................ 11 6 TEST RESULTS AND MEASUREMENT DATA .................................................................................................... 11 6.1 Antenna requirement .............................................................................................................. 12 6.2 Peak Power Measurement ...................................................................................................... 13 6.3 Frequency Separation and 20 dB Bandwidth .......................................................................... 15 6.4 Number of Hopping Frequency ............................................................................................... 17 6.5 Time of Occupancy (Dwell Time) ............................................................................................ 18 6.6 Conducted Spurious Emissions and Band Edges Test ........................................................... 20 6.7 Restrict-band Band-edge Measurements ............................................................................... 22 6.8 Radiated Emissions Measurement ......................................................................................... 24 6.9 Conducted Emissions ............................................................................................................. 34 6.10 Pseudorandom frequency hopping sequence ......................................................................... 35 7 TEST SETUP PHOTOGRAPHS OF EUT ................................................................................................................ 36 8 EXTERNAL PHOTOGRAPHS OF EUT ................................................................................................................... 36 9 INTERNAL PHOTOGRAPHS OF EUT .................................................................................................................... 36 Page 3 of 36…

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Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) dBi Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Dongguan Yaxu(AiT) Technology Limited Report No.: AIT22110413W1 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Page 1 of 47 Appendix A RF Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Emax Pro BT Comms Trade Mark: Caldwell Test Model: 1136235 Environmental Conditions Temperature: 25.6°C Relative Humidity: 52.3% ATM Pressure: 101Kpa Test Engineer: Simba Huang Supervised by: Seal Chen Dongguan Yaxu(AiT) Technology Limited Report No.: AIT22110413W1 FCC ID: 2AF3W-1136235 IC: 29812-1136235 Page 2 of 47 Contents Page COVER PAGE 1 Duty Cycle ........................................................................................................................................................................................... 3 1.1 Test Result ............................................................................................................................................................................... 3 1.2 Test Graphs ............................................................................................................................................................................. 4 2 Maximum Conducted Peak Output Power .......................................................................................................................................... 7 2.1 Test Result ............................................................................................................................................................................... 7 2.2 Test Graphs ............................................................................................................................................................................. 8 3 20dB Bandwidth ................................................................................................................................................................................ 11 3.1 Test Result ............................................................................................................................................................................. 11 3.2 Test Graphs ........................................................................................................................................................................... 12 4 Occupied Bandwidth.......................................................................................................................................................................... 15 4.1 Test Result ............................................................................................................................................................................. 15 4.2 Test Graphs ........................................................................................................................................................................... 16 5 Carrier Frequency Separation ........................................................................................................................................................... 19 5.1 Test Result ............................................................................................................................................................................. 19 5.2 Test Graphs ........................................................................................................................................................................... 20 6 Hopping Channel Number ................................................................................................................................................................. 21 6.1 Test Result ............................................................................................................................................................................. 21 6.2 Test Graphs ........................................................................................................................................................................... 22 7 Dwell Time ......................................................................................................................................................................................... 23 7.1 Test Result ............................................................................................................................................................................. 23 7.2 Test Graphs ........................................................................................................................................................................... 24 8 RF Conducted Spurious Emissions ................................................................................................................................................... 26 8.1 Test Result ............................................................................................................................................................................. 26 8.2 Test Graphs ........................................................................................................................................................................... 27 9 Band-edge for RF Conducted Emissions .......................................................................................................................................... 33 9.1 Test Result ............................................................................................................................................................................. 33 9.2 Test Graphs ........................................................................................................................................................................... 34 10 Restrict-band band-edge measurements .......................................................................................................................................... 42 10.1 Test Result .................................................................................…

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Page 1 of 1 FCC ID: 2AF3W-1136235 RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz ****************************************End of Report*************************************