2ADDH-44517Dual Driver Bluetooth Headphone with ANC

P/N 44517 User Manual Monoprice ™ Dual Driver Bluetooth ® Headphone with ANC 1 Thank You for Purchasing this Product To ensure optimum performance and safety, read the following instructions before connecting, operating, or adjusting the product. Keep this manual for future reference. Table of Contents Safety Warnings and Guidelines .................................................................................................................................. 2 Introduction .................................................................................................................................................................................... 2 Features .............................................................................................................................................................................................. 3 Package Contents ..................................................................................................................................................................... 3 Key Operations............................................................................................................................................................................ 4 Specifications ................................................................................................................................................................................ 7 2 Safety Warnings and Guidelines • Keep the User Manual for future reference • Refrain from using the device in an environment with potential dangers (such as thunderstorms, heavy rain, extreme heat, etc) • Avoid using the device while doing activities that require one’s utmost attention (such as driving) to prevent danger • Place the headphones out of children’s reach to avoid improper use • Avoid water to prevent damaging the function of the device • Avoid increasing the volume to an extreme level to prevent hearing damage • Prevent using the device while charging • Do not remove the battery from the headset to avoid damaging its built-in non-removable rechargeable battery • Stop using the device immediately when you feel discomfort, irritation, or other adverse reactions Introduction The Dual Driver Bluetooth® Headphone by Monoprice™ features Active Noise Cancellation (ANC) to help emphasize sound quality anywhere on the go. Any music will sound more immersive with its dual driver, splitting the entire broad spectrum of audio frequencies for ear-to-ear. Its Bluetooth 5.0 allows you to connect to quality sounds. Listen comfortably all day with the help of its comfortable ear foams and battery life of up to 70 hours. The device also features a low-battery alarm prompt that signals you whenever it needs to recharge. 3 Features • Active Noise Cancelling • Dual Drivers • Transparency Mode • Bluetooth 5.0 • Mode Switch • Up to 70 hours of music and talk time • Frequency Response Range of 20Hz-20KHz • Supports A2DP, HFP, SPP, HID, and PBAP • Low Battery Alarm Prompt • Two Mobile Phones Connection Package Contents • 1x Monoprice Dual Driver Bluetooth Headphone • 1x USB-C Charging Cable • 1x Carrying Case • 1x User Manual 4 Key Operations BLUETOOTH CONNECTION STEPS 1. Please control the distance between the Bluetooth headphones and your mobile phone (or other device used for connection). Make sure it is within 1 meter. 2. In its shutdown state, press and hold the "MF button" for 3 seconds to hear the prompt tone “power on” and “pairing” at the same time. 3. The blue LED flash indicates that the device is entering the pairing mode. 4. Open your phone’s (or device’s) Bluetooth connection and select “MP44517” to automatically connect. 5. If the “connected” prompt tone appears, it means you have successfully connected your device with the headphones. Note: Press and hold the "MF button" for 3 seconds to turn on the headphones and automatically connect to its last connected device. If there is no connected device present, the headset will automatically enter the pairing mode after 10 seconds. DISCONNECTION AND RECONNECTION 1. When the distance between the paired device and the headset exceeds the receiving range, the Bluetooth will automatically disconnect. The blue LED flash will appear along with a “disconnected” prompt tone. 2. After the disconnection time exceeds 10 minutes, the headset will automatically enter pairing mode again. 5 CONNECTING TWO MOBILE PHONES/DEVICES 1. After connecting to the first device, turn off the Bluetooth headset. 2. While turned off, press and hold the “MF button” for 5 seconds until a blue LED light flashes quickly. 3. In the second device’s Bluetooth pairing devices, search and select “MP44517”. 4. Reconnect with the first device by also selecting “MP44517” in its pairing device to connect to both simultaneously. 5. To answer a call on one of the mobile devices, press the “MF button”. If the other phone gets a call, press the “MF button” in order to answer and end the call on the first device. 6. Music automatically stops if one of the mobile devices receives a call and answers it. OTHER OPERATIONS Answering Calls Short press the “MF button” once to answer a call. Ending Calls Short press the “MF button” once during a call interval to end the call. Rejecting Calls Press and hold the “MF button” for 2 seconds to reject a call. Call Waiting When you want to answer an incoming call when you are already on a call, short press the “MF button” once to answer the incoming call and keep the first call on hold. Mode Switch Short press the “M button" to switch mode: ANC - Normal - Transparency. 6 Activate Voice Function Double press the “MF button” to activate voice assistant (make sure your mobile device supports this). Play/Pause Music Click the “MF button” in order to pause or play music. Song Selection Long press the volume up button to skip to the next song. Long press the volume down button to skip to the previous song. Volume Adjustment Press the volume up or vo…

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Monoprice,Inc. CoveredEquipmentCertificationAttestationLetter 5/15/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2ADDH-44517 Monoprice,Inc.(“theapplicant”)certifiesthattheequipmentforwhichauthorizationis soughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorization pursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. Monoprice,Inc.(“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredListasanentityproducing “covered”equipment. Signed: Printedname:DavidFuge Title:Sr.Director,ProgramManagement CompanyName:Monoprice,Inc. Date:5/15/2023

Monoprice, Inc. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 5/15/2023 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2ADDH-44517 FRN of applicant: 0024003816 Per section 2.911(d)(7) of the FCC rules,[ Monoprice, Inc.](“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Monoprice, Inc. FCC Registration Number (FRN): 0024003816 Physical U.S. Company Address: 1 Pointe Drive Suite 400, Brea, California 92821 United States Contact Person: David Fuge Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Signed: Printed name: David Fuge Title: Sr. Director, Program Management Company Name: Monoprice, Inc. Date: 5/15/2023 Agent Signed (if different from Applicant): Signed: Printed name: David Fuge Title: Sr. Director, Program Management Company Name: Monoprice, Inc. Date: 5/15/2023

Monoprice,Inc. 2023-05-15 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointSHENZHENTONGCETESTINGLAB/2101&2201,Zhenchang FactoryRenshanIndustrialZone,FuhaiSubdistrict,Bao'anDistrict,Shenzhen,Guangdong, 518103,People'sRepublicofChina(NameofAgentcompanynameandaddress)toactas ouragentinthepreparationofthisapplicationforequipmentcertification.Icertifythat submitteddocumentsproperlydescribethedeviceorsystemforwhichequipment certificationissought.Ialsocertifythateachunitmanufactured,importedormarketed,as definedintheFederalCommunicationsCommission’sregulationswillhaveaffixedtoita labelidenticaltothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonourbehalf,Iack nowledgethatallresponsibilityforcomplyingwiththetermsandconditionsforcertification,stillres ideswithMonoprice,Inc./1PointeDriveSuite400,Brea,California92821UnitedStates (ApplicantNameandaddress) <Signature> Name:DavidFuge Title:Sr.Director,ProgramManagement ApplicantCompany:Monoprice,Inc.

Monoprice,Inc. 2023-04-26 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2ADDH-44517 ProductName:DualDriverBluetoothHeadphonewithANC RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommissionsrules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: Schematics  Blockdiagram  Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature> Name:DavidFuge Title:Sr.Director,ProgramManagement Company:Monoprice,Inc.

Page 1 of 4 Appendix C: Photographs of EUT Product: Dual Driver Bluetooth Headphone with ANC Model: 44517 External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

LabelArtworkandLocation Model:44517 Label and Location: Size:L*W=30*10mm Size:L*W=15*10mm

Page 1 of 6 Appendix C: Photographs of EUT Product: Dual Driver Bluetooth Headphone with ANC Model: 44517 Internal Photos Page 2 of 6 Page 3 of 6 Page 4 of 6 Page 5 of 6 Antenna Page 6 of 6

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2ADDH-44517 Test Report No. ............... : TCT230411E006 Date of issue ................... : Apr. 21, 2023 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: 2101 & 2201, Zhenchang Factory Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : Monoprice, Inc. Address ........................... : 1 Pointe Drive Suite 400, Brea, California 92821 United States Manufacturer's name ... : Monoprice, Inc. Address ........................... : 1 Pointe Drive Suite 400, Brea, California 92821 United States Standard(s) ..................... : FCC CFR Title 47 Part 1.1307 Product Name ................. : Dual Driver Bluetooth Headphone with ANC Trade Mark ...................... : Monoprice, IIIP Model/Type reference..... : 44517 Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : Apr. 11, 2023 Date (s) of performance of test ................................... : Apr. 11, 2023 - Apr. 21, 2023 Tested by (+signature) ... : Yannie ZHONG Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT230411E006 Page 2 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 2. General Information ................................................................................. 4 2.1. Test environment and mode ................................................................................. 4 2.2. Description of Support Units ................................................................................ 4 3. Facilities and Accreditations .................................................................. 5 3.1. Facilities ................................................................................................................. 5 3.2. Location ................................................................................................................. 5 4. Test Results and Measurement Data ..................................................... 6 Report No.: TCT230411E006 Page 3 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : Dual Driver Bluetooth Headphone with ANC Model/Type reference........... : 44517 Sample Number....................: TCT230411E005-0101 Operation Frequency ........... : 2402MHz~2480MHz Modulation Type ................... : GFSK, π/4-DQPSK, 8DPSK Antenna Type ........................ : PCB Antenna Antenna Gain ........................ : 1.9dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list None. Report No.: TCT230411E006 Page 4 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. General Information 2.1. Test environment and mode Item Normal condition Temperature +25ºC Voltage DC 3.7V Humidity 56% Atmospheric Pressure: 1008 mbar Test Mode: Engineering mode: Keep the EUT in continuous transmitting by select channel 2.2. Description of Support Units The EUT has been tested as an independent unit together with other necessary accessories or support units. The following support units or accessories were used to form a representative test configuration during the tests. Equipment Model No. Serial No. FCC ID Trade Name / / / / / Note: 1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during the test. 2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the intended use. 3. For conducted measurements (Output Power, 20dB Occupied Bandwidth, Carrier Frequencies Separation, Hopping Channel Number, Dwell Time, Spurious Emissions), the antenna of EUT is connected to the test equipment via temporary antenna connector, the antenna connector is soldered on the antenna port of EUT, and the temporary antenna connector is listed in the Test Instruments. Report No.: TCT230411E006 Page 5 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. Facilities and Accreditations 3.1. Facilities The test facility is recognized, certified, or accredited by the following organizations: ● FCC - Registration No.: 645098 SHENZHEN TONGCE TESTING LAB Designation Number: CN1205 The testing lab has been registered and fully described in a report with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. ● IC - Registration No.: 10668A-1 SHENZHEN TONGCE TESTING LAB CAB identifier: CN0031 The testing lab has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing. 3.2. Location SHENZHEN TONGCE TESTING LAB Address: 2101 & 2201, Zhenchang Factory Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, She…

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Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2ADDH-44517 Test Report No. ............... : TCT230411E005 Date of issue ................... : Apr. 21, 2023 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: 2101 & 2201, Zhenchang Factory Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : Monoprice, Inc. Address ........................... : 1 Pointe Drive Suite 400, Brea, California 92821 United States Manufacturer's name ... : Monoprice, Inc. Address ........................... : 1 Pointe Drive Suite 400, Brea, California 92821 United States Standard(s) ..................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 Product Name ................. : Dual Driver Bluetooth Headphone with ANC Trade Mark ...................... : Monoprice, IIIP Model/Type reference..... : 44517 Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : Apr. 11, 2023 Date (s) of performance of test ................................... : Apr. 11, 2023 - Apr. 21, 2023 Tested by (+signature) ... : Yannie ZHONG Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT230411E005 Page 2 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 1.3. Operation Frequency ............................................................................................ 4 2. Test Result Summary .............................................................................. 5 3. General Information ................................................................................. 6 3.1. Test environment and mode ................................................................................. 6 3.2. Description of Support Units ................................................................................ 6 4. Facilities and Accreditations .................................................................. 7 4.1. Facilities ................................................................................................................. 7 4.2. Location ................................................................................................................. 7 4.3. Measurement Uncertainty ..................................................................................... 7 5. Test Results and Measurement Data ..................................................... 8 5.1. Antenna requirement ............................................................................................ 8 5.2. Conducted Emission ............................................................................................. 9 5.3. Conducted Output Power ................................................................................... 13 5.4. 20dB Occupy Bandwidth .................................................................................... 14 5.5. Carrier Frequencies Separation ......................................................................... 15 5.6. Hopping Channel Number .................................................................................. 16 5.7. Dwell Time ............................................................................................................ 17 5.8. Pseudorandom Frequency Hopping Sequence ................................................ 18 5.9. Conducted Band Edge Measurement ................................................................ 19 5.10.Conducted Spurious Emission Measurement .................................................. 20 5.11.Radiated Spurious Emission Measurement ..................................................... 21 Appendix A: Test Result of Conducted Test Appendix B: Photographs of Test Setup Appendix C: Photographs of EUT Report No.: TCT230411E005 Page 3 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : Dual Driver Bluetooth Headphone with ANC Model/Type reference........... : 44517 Sample Number....................: TCT230411E005-0101 Bluetooth Version ................ : V5.0 Operation Frequency ........... : 2402MHz~2480MHz Transfer Rate ........................ : 1/2/3 Mbits/s Number of Channel .............. : 79 Modulation Type ................... : GFSK, π/4-DQPSK, 8DPSK Modulation Technology ....... : FHSS Antenna Type ........................ : PCB Antenna Antenna Gain ........................ : 1.9dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list None. Report No.: TCT230411E005 Page 4 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1.3. Operation Frequency Channel Frequency Channel Frequency Channel Frequency Channel Frequency 0 2402MHz 20 2422MHz 40 2…

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Report No.: TCT230411E005 Page 83 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Dwell NVNT 2-DH5 2441MHz One Burst Dwell NVNT 2-DH5 2441MHz Accumulated Report No.: TCT230411E005 Page 84 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Dwell NVNT 3-DH1 2441MHz One Burst Dwell NVNT 3-DH1 2441MHz Accumulated Report No.: TCT230411E005 Page 85 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Dwell NVNT 3-DH3 2441MHz One Burst Dwell NVNT 3-DH3 2441MHz Accumulated Report No.: TCT230411E005 Page 86 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Dwell NVNT 3-DH5 2441MHz One Burst Dwell NVNT 3-DH5 2441MHz Accumulated Report No.: TCT230411E005 Page 87 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix B: Photographs of Test Setup Product: Dual Driver Bluetooth Headphone with ANC Model: 44517 Radiated Emission Report No.: TCT230411E005 Page 88 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Conducted Emission Report No.: TCT230411E005 Page 89 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix C: Photographs of EUT Product: Dual Driver Bluetooth Headphone with ANC Model: 44517 External Photos Report No.: TCT230411E005 Page 90 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT230411E005 Page 91 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT230411E005 Page 92 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT230411E005 Page 93 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Product: Dual Driver Bluetooth Headphone with ANC Model: 44517 Internal Photos Report No.: TCT230411E005 Page 94 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT230411E005 Page 95 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT230411E005 Page 96 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT230411E005 Page 97 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT230411E005 Page 98 of 98 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com *****END OF REPORT*****

V . S .W . R < 1.4 Polarization Type V ertical & Horizontal Frequenc Range2400 ~ 2500GHz Input Impendence(ohm)50 Efficiency (dB) 6 0.2 % 6 0.2 %-3.61.91.2 Maximum Power (dBm)1.7 (XY-plane) Gain (dBi) 1. 9 (MAX) Peak EIRP(dBm)1.2 Tot. Rad. Pwr. (dBm)-1.2 (Input pwr – loss pwr) Product specification Quick Reference Date Antenna module on the system board Ant. Port Input Pwr. (dBm)0 (Typ. BT class 2 output power) Directivity (dBi)1(all direction antenna) Minimum Power (dBm)-4(XY-plane) Avg. Power (dBm)-0.5(XY-plane) All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Unit in dBi @2.44GHzXY-planeXZ-planeYZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board -0.51.1-3.0 Return Loss The Environment of Antenna Radiation Pattern 3D radiation pattern diagram XY -planeXZ-planeYZ-plane

Page 1 of 2 Appendix B: Photographs of Test Setup Product: Dual Driver Bluetooth Headphone with ANC Model: 44517 Radiated Emission Page 2 of 2 Conducted Emission