2AC67-W320BSDECT Wireless Headset

VT W320 Headset User Manual User Manual 1. WELCOME 3 2. 2. PRODUCT OVERVIEW 4 3. . CONNECTING TO DESK PHONE AND PC8 5. VT W320 USE13 4. CONFIGURING THE DESK PHONE AND PC AUDIO12 6. CALL MANAGEMENT15 42.1 PACKAGE CONTENTS 52.2 HEADSET OVERVIEW 62.3 BASE OVERVIEW 83.1 CONNECT TO DESK PHONE 103.2 CONNECTING TO PC 103.3 TURN DESK PHONE MODE TO PC MODE 113.4 CONNECT POWER SUPPLY TO BASE 113.5 DOCK THE HEADSET 124.1 SET A CLEAR DIAL TONE 124.2 SET THE MICROPHONE VOLUME AND RINGTONE VOLUME 145.1 MAKING CALLS 156.1 Making Calls, Answering Calls And Ending Calls 7. 7. TECHNICAL SPECIFICATIONS16 167.1 VT W320 DECT Headset 156.2 Switching Between Phone And Headset 177.2 HOW TO CARE FOR YOUR HEADSET 177.3 VT W320 DECT BASE 187.4 Product Disposal 1. WELCOME Congratulations on purchasing your new VT W320. We are sure you will enjoy its wide range of features, and find the headset comfortable to wear and easy to use. • Wideband audio for exceptional sound quality. • Volume and mute controls. • Intuitive headset touch button for easy call handling. • LED and audio indicators. • Built-in Busylight. • Advanced hearing protection with safetone™. • Noise-cancelling microphone. 3 VT W320 HEADSET FEATURES VT W320 base features • Headset recharge docking cradle. • Visual call status indicators. • Visual wireless connection status indicators. • Mute indicators. • Battery indicators. • Voice-prompted configuration. • Volume adjustment • Port for VT EHS Cable adapter and remote handset lifter • Work with Desk Phone & PC Soft phone (Microsoft Teams and Skype for Business ) VT W320 BASE FEATURES 2. PRODUCT OVERVIEW 2.1 PACKAGE CONTENTS 4 Telephone cable HeadsetBase Power adapter User manual Mini USB Cable VT W320 Headset User Manual 2.2 HEADSET OVERVIEW Adjustable headband T-Bar Base Charge Point USB charging port Microphone boom-arm 5 Busylight indicator Multi-function touch button Mute button Volume up Volume down Power On/off/ Connect switch Power on /off and Pairing indicator Adjustable headband Microphone boom-arm Busylight indicator Multi-function touch button 2.3 BASE OVERVIEW 6 Desk Phone mode button Answer/End call button Battery charging status light MIC mute button PC mode button LED ColorICONStatus Busylight and Pairing status Charger contacts WhiteTap it to DESK Phone mode WhiteTap it to PC mode RedTap it to mute the microphone Blue FlashPress the Page Switch button 5s into Pairing mode RedOn a call Red FlashIncoming call Green FlashIncoming call RedTap it to answer the call Green FlashBattery Charging GreenFull battery BlueMedium battery RedVery low battery 7 AUX for EHS cable port Telephone Port PAGE Switch USB C port Power Adapter JackHandset port Speaker A B C D E F G MIC volume adjustment Multiple Switch 3.1 CONNECT TO DESK PHONE 8 3. CONNECTING TO DESK PHONE AND PC Option 1 Option 2 Desk Phone with Headset Port: This type of desk phone has a dedicated headset port(usually at the back of the phone). These phones typically have a button on the front panel for switching between handset and headset. 1. Plug the supplied telephone cable into the port marked on the base. 2. Connect the telephone cable to the headset port on the desk phone. Desk Phone without Headset Port: this desk phone does not have a dedicated headset port. 1. Unplug the handset cable from the phone body. 2. Connect the handset cable to the port marked on the base. 3. Plug the supplied telephone cable into the port marked on the base. 4. Connect the telephone cable into the handset port on the desk phone. 9 Option 3 Option 4 Desk Phone with VT EHS Cable: A VT EHS Cable enables an incoming call to be answered or ended by the headset multi-function button. Contact your local VT dealer to purchase a VT EHS Cable for your specific desk phone. 1. Connect the VT EHS Cable as shown in adapter documentation supplied with the VT EHS Cable. Maybe the telephone cable will also need to be connected for some phones. 2. Call your connected desk phone using another phone to enable the VT EHS Cable. Wait 10 seconds before answering the phone. Desk Phone with lifter: lifter manually lifts the desk phone handset to make or answer a call. For mounting Instructions, refer to documentation supplied with the lifter. 1. Unplug the handset cable from the desk phone body. 2. Connect the handset cable to the port marked on the base. 3. Plug the supplied telephone cable into the port marked on the base. 4. Connect the telephone cable into the handset port on the desk phone. 5. Connect the Lifter cable into the port marked AUX on the base. Please refer to the VT EHS Use Guide 3.2 CONNECTING TO PC 10 First of all, connect Power Adapter to Base and then using the USB C cable to connect the Base to PC. If you want to use the hook on and hook off function with Skype for Business, please open the Skype for Business and choose W320 DECT device in settings, after that press the Multi-button on the headset to answer and hang up the phone call. 3.3 TURN DESK PHONE MODE TO PC MODE Firstly, connecting Power Adapter to Base, the VT W320 is always in Desk Phone Mode, and the Desk Phone Mode light is on. Secondly, using USB C Cable to connect the Base to PC. The computer should automatically recognize the device and install the correct drivers. Thirdly, please press the PAGE button and you will see the PC Mode light is on with the Desk Phone Mode being light off. Now the headset is in PC Mode. If you want to turn PC Mode back to Desk Phone Mode, please press the PAGE button again. When the Desk Phone Mode light is on and the PC Mode LED is off, the headset is now in Desk Phone Mode again. 11 3.4 CONNECT POWER SUPPLY TO BASE 3. RE-PAIRING Re-pairing: Consistently press the PAGE switch for 5s, the pairing led will flash to search the headset. Then consistently press the headset mute button, when the headset status LED flashes, the headset is in the paired status. The pairing will be successful when audio link indicator and headset status LED power off at the same time. 1. Plu…

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Name: Xiamen VBeT Electronic Co.,Ltd. Address: N403, Weiye Building, Xiamen Pioneering Park for Overseas Chinese Scholars, PRC,Xiamen,China Tel: 13950190158; Fax: +86-0592-5778708 Email: [email protected] CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2023/02/08 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2AC67-W320BS Xiamen VBeT Electronic Co.,Ltd. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Signature Printed name: Victor fan Title: CEO

Name: Xiamen VBeT Electronic Co.,Ltd. Address: N403, Weiye Building, Xiamen Pioneering Park for Overseas Chinese Scholars, PRC,Xiamen,China Tel: 13950190158; Fax: +86-0592-5778708 Email: [email protected] CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2023/02/08 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2AC67-W320BS Xiamen VBeT Electronic Co.,Ltd. certifies that as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Signature Printed name: Victor fan Title: CEO

U.S. AGENT LETTER OF ATTESTATION Date: 2023-03-21 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2AC67-W320BS Xiamen VBeT Electronic Co., Ltd.(“the Applicant”) certifies that, as of the date of the filing of the application,VBeT North America INC (U.S. agent). is our designated U.S. agent for service of process for the above referenced FCC ID.Xiamen VBeT Electronic Co., Ltd. (“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. VBeT North America INC (U.S. agent) accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: VBeT North America INC Address: 14 Kansas Street Frankfort, IL 60423 United States FRN: 0033508631 Tel.: (312)767-0087 800 Email: [email protected] Signed by (printed name): David Hogan / CEO Signature: Xiamen VBeT Electronic Co., Ltd. Add: N403,Weiye Building, Xiamen Pioneering Park for Overseas Chinese Scholars, PRC, Xiamen,China FRN: 0023925902 Tel: 13950190158 Fax: +86-592-5778708 Mail: [email protected] Signature Printed name: Victor Fan Title:CEO

QA-FR-170-B Xiamen VBeT Electronic Co., Ltd. Add: N403,Weiye Building, Xiamen Pioneering Park for Overseas Chinese Scholars, PRC, Xiamen,China Tel: 13950190158 Fax: +86-592-5778708 Mail:[email protected] FCC Authorization Date: 2023-03-22 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We , Xiamen VBeT Electronic 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: Victor Fan Title:CEO

QA-FR-171-A Xiamen VBeT Electronic Co., Ltd. Add:N403,Weiye Building, Xiamen Pioneering Park for Overseas Chinese Scholars, PRC,Xiamen,China Tel: 13950190158 Fax: +86-592-5778708 Mail:[email protected] FCC Confidential Authorization Date: 2023-03-22 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AC67-W320BS In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Xiamen VBeT Electronic 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: Victor Fan Title:CEO

Xiamen VBeT Electronic Co., Ltd. Add:N403,Weiye Building, Xiamen Pioneering Park for Overseas Chinese Scholars,PRC, Xiamen,China Tel: 13950190158 Fax: +86-592-5778708 Mail: [email protected] Product Difference Declaration Date: 2023-03-22 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, Xiamen VBeT Electronic Co.,Ltd., hereby declare that our product DECT Wireless Headset (FCC ID: 2AC67-W320BS), model VT W320, VT W320 Duo,VT W320 Mono,W320,W320 Duo,W320 Mono are same. The only difference between them is model number. We confirm that all information above is true, and we will be responsible for all the consequences. Please contact me if you have any question. Sincerely, Signature Printed name: Victor Fan Title:CEO

Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS External Photos Page 1 of 7 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS External Photos Page 2 of 7 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS External Photos Page 3 of 7 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS External Photos Page 4 of 7 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS External Photos Page 5 of 7 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS External Photos Page 6 of 7 Adapter Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS External Photos Page 7 of 7

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221207-59812E-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. FCC ID: 2AC67-W320BS Internal Photos Page 1 of 5 Internal photos Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS Internal Photos Page 2 of 5 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS Internal Photos Page 3 of 5 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS Internal Photos Page 4 of 5 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AC67-W320BS Internal Photos Page 5 of 5 Antenna

Shenzhen Accurate Technology Co., Ltd. Report No.: RA221207-59812E-RF-00 Version 55: 2021-11-09 Page 11 of 53 FCC-RF §1.1307 (b) (3) & §2.1091- RF Exposure 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 14.0 -10.95 -13.10.9 0.0010.2 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.

ReportNo.:RFI-LAB-RF-202303-CC08-1 QP030-E41 Page1of10 TestingReport CustomerName:XiamenVBeTElectronicsCo.,Ltd ProductName:1.9GHzAntenna SampleModel:W320BSA ReferenceStandard:GB/T9410-2008;ANSI/IEEEStd149-2021 IssueDate:2023.3.8 Engineer:Date: Auditor:Date: Approver:Date: ReportNo.:RFI-LAB-RF-202303-CC08-1 QP030-E41 Page2of10 Version VersionNo.DateDescriptionFormulateApproval A02023.3.8Forthefirsttime,formulateZkrisEason Contents 1.GeneralInformation.........................................................................................................................3 1.1Generalinformationoftestinginstitutions...........................................................................3 1.2Testingprinciple...................................................................................................................3 1.3Testequipment......................................................................................................................4 1.4Testenvironment...................................................................................................................4 1.5Statement..............................................................................................................................4 2.SampleInformation.........................................................................................................................5 2.1Clientinformation.................................................................................................................5 2.2DescriptionofEUT(S)..........................................................................................................5 2.3EUTappearance....................................................................................................................6 2.4EUTsetupphotooffreespaceOTAtesing..........................................................................6 3.TestResults......................................................................................................................................7 3.1Teststandard.........................................................................................................................7 3.2Testuncertainty.....................................................................................................................7 3.3Testdata................................................................................................................................8 3.3.1VSWRparameters.....................................................................................................8 3.3.2VSWRdata................................................................................................................8 3.3.3Typicalfreespaceefficiencyandgain......................................................................8 3.3.4Typicalfreespaceradiationpattern...........................................................................9 （Thefollowingisblank）..............................................................................................................10 ReportNo.:RFI-LAB-RF-202303-CC08-1 QP030-E41 Page3of10 1.GeneralInformation 1.1Generalinformationoftestinginstitutions Name ShenzhenRFI-LABCommunicationTechnologyCo.,Ltd. Address 10/FA,LingyunBld,LiufangRd,BaoanDistrict,SZ Tel / E-mail / Equipment AlltheequipmentusedinthereportisfixedinZoneB,WestSideof1/F,Building1, TingweiIndustrialPark,No.6LiufangRoad,Bao'anDistrict,Shenzhen 1.2Testingprinciple ReportNo.:RFI-LAB-RF-202303-CC08-1 QP030-E41 Page4of10 1.3Testequipment EquipmentModelNo.SerialNo.Manufacturer Calibration date Next calibration date OTATest System RayZone-5000 RFI-LAB-RF -D00 GTS2021.3.152023.3.14 Network Analyzer E5071C RFI-LAB-RF -D01 KEYSIGHT2022.5.132023.5.12 1.4Testenvironment Temperature 23.4°C Humidity 58%RH Pressure 100.14kPa 1.5Statement (1)Thetestresultsinthereportareonlyapplicabletothetestedsamplesandthetestedsamples workundertheenvironmentdescribedinthereport. (2)OnlyShenzhenRFI-LABCommunicationTechnologyCo.,Ltd.havetherighttomodifythe report,andthemodificationinformationshallbeannotatedintherevisionform. (3)Anyobjectiontothisreportshallberaisedwithin30daysafterformalconfirmationofthe report. (4)Thisreportisinvalidifthereisanyevidencethatthesampleinformationprovidedisfalsified. (5)Thereportisinvalidwithoutthesignatureoftheauditorandapprover. ReportNo.:RFI-LAB-RF-202303-CC08-1 QP030-E41 Page5of10 2.SampleInformation 2.1Clientinformation Name XiamenVBeTElectronicsCo.,Ltd Address N403,WeiyeBuilding,XiamenPioneeringPark forOverseasChineseScholars,PRC Contacts ManagerLin Tel 18850172684 E-mail [email protected] Manufacturer / 2.2DescriptionofEUT(S) ProductName 1.9GHzAntenna SampleModel W320BSA AntennaSize / SerialNo. / AntennaType PCBAntenna TestItem VSWR;Antennagain;Efficiency;Radiationpattern FrequencyRange 1910-1930MHz ReceivedDate 2023.3.6 TestDate 2023.3.7 Remark ThelengthoftheRFcableis90mm ReportNo.:RFI-LAB-RF-202303-CC08-1 QP030-E41 Page6of10 2.3EUTappearance 2.4EUTsetupphotooffreespaceOTAtesing Planform Frontview ReportNo.:RFI-LAB-RF-202303-CC08-1 QP030-E41 Page7of10 3.TestResults 3.1Teststandard NameParameterMethodStandardno. Mobile communication antenna Antennagain Genericspecification forantennasusedinthe mobilecommunications GB/T 9410-2008 Radiationpattern VSWR Antenna Radiationefficiency IEEEStandardTest ProceduresforAntennas ANSI/IEEEStd 149-2021 Gainanddirectivity 3.2Testuncertainty TheuncertaintywascalculatedonthebasisoftheGUMpublishedbyISO,usingthe inclusionfactorofK=2andthe95%confidenceleveltoexpresstheextended uncertainty. ItemUncertainty VSWR±0.3 Antennagain±1dB Radiationefficiency ± 10% ReportNo.:RFI-LAB-RF-202303-CC08-1 QP030-E41 Page8of10 3.3Testdata 3.3.1VSWRparameters 3.3.2VSWRdata 3.3.3Typicalfreespaceefficiencyandgain Frequency/MHz 191019201930 VSWR 15.82414.36513.089 Frequency/MHz 19101912191419161918192019221924192619281930 PeakGain/dBi -14.34-14.46-14.36-14.03-13.51-13.25-13.32-13.37-13.21-12.76-12.48 Efficiency/% 0.930.920.961.0…

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ReportNo.:RFI-LAB-RF-202303-CC08-2 QP030-E41 Page1of10 TestingReport CustomerName:XiamenVBeTElectronicsCo.,Ltd ProductName:1.9GHzAntenna SampleModel:W320BSB ReferenceStandard:GB/T9410-2008;ANSI/IEEEStd149-2021 IssueDate:2023.3.8 Engineer:Date: Auditor:Date: Approver:Date: ReportNo.:RFI-LAB-RF-202303-CC08-2 QP030-E41 Page2of10 Version VersionNo.DateDescriptionFormulateApproval A02023.3.8Forthefirsttime,formulateZkrisEason Contents 1.GeneralInformation.........................................................................................................................3 1.1Generalinformationoftestinginstitutions...........................................................................3 1.2Testingprinciple...................................................................................................................3 1.3Testequipment......................................................................................................................4 1.4Testenvironment...................................................................................................................4 1.5Statement..............................................................................................................................4 2.SampleInformation.........................................................................................................................5 2.1Clientinformation.................................................................................................................5 2.2DescriptionofEUT(S)..........................................................................................................5 2.3EUTappearance....................................................................................................................6 2.4EUTsetupphotooffreespaceOTAtesing..........................................................................6 3.TestResults......................................................................................................................................7 3.1Teststandard.........................................................................................................................7 3.2Testuncertainty.....................................................................................................................7 3.3Testdata................................................................................................................................8 3.3.1VSWRparameters.....................................................................................................8 3.3.2VSWRdata................................................................................................................8 3.3.3Typicalfreespaceefficiencyandgain......................................................................8 3.3.4Typicalfreespaceradiationpattern...........................................................................9 （Thefollowingisblank）..............................................................................................................10 ReportNo.:RFI-LAB-RF-202303-CC08-2 QP030-E41 Page3of10 1.GeneralInformation 1.1Generalinformationoftestinginstitutions Name ShenzhenRFI-LABCommunicationTechnologyCo.,Ltd. Address 10/FA,LingyunBld,LiufangRd,BaoanDistrict,SZ Tel / E-mail / Equipment AlltheequipmentusedinthereportisfixedinZoneB,WestSideof1/F,Building1, TingweiIndustrialPark,No.6LiufangRoad,Bao'anDistrict,Shenzhen 1.2Testingprinciple ReportNo.:RFI-LAB-RF-202303-CC08-2 QP030-E41 Page4of10 1.3Testequipment EquipmentModelNo.SerialNo.Manufacturer Calibration date Next calibration date OTATest System RayZone-5000 RFI-LAB-RF -D00 GTS2021.3.152023.3.14 Network Analyzer E5071C RFI-LAB-RF -D01 KEYSIGHT2022.5.132023.5.12 1.4Testenvironment Temperature 23.9°C Humidity 58%RH Pressure 100.15kPa 1.5Statement (1)Thetestresultsinthereportareonlyapplicabletothetestedsamplesandthetestedsamples workundertheenvironmentdescribedinthereport. (2)OnlyShenzhenRFI-LABCommunicationTechnologyCo.,Ltd.havetherighttomodifythe report,andthemodificationinformationshallbeannotatedintherevisionform. (3)Anyobjectiontothisreportshallberaisedwithin30daysafterformalconfirmationofthe report. (4)Thisreportisinvalidifthereisanyevidencethatthesampleinformationprovidedisfalsified. (5)Thereportisinvalidwithoutthesignatureoftheauditorandapprover. ReportNo.:RFI-LAB-RF-202303-CC08-2 QP030-E41 Page5of10 2.SampleInformation 2.1Clientinformation Name XiamenVBeTElectronicsCo.,Ltd Address N403,WeiyeBuilding,XiamenPioneeringPark forOverseasChineseScholars,PRC Contacts ManagerLin Tel 18850172684 E-mail [email protected] Manufacturer / 2.2DescriptionofEUT(S) ProductName 1.9GHzAntenna SampleModel W320BSB AntennaSize / SerialNo. / AntennaType PCBAntenna TestItem VSWR;Antennagain;Efficiency;Radiationpattern FrequencyRange 1910-1930MHz ReceivedDate 2023.3.6 TestDate 2023.3.7 Remark ThelengthoftheRFcableis90mm ReportNo.:RFI-LAB-RF-202303-CC08-2 QP030-E41 Page6of10 2.3EUTappearance 2.4EUTsetupphotooffreespaceOTAtesing Planform Frontview ReportNo.:RFI-LAB-RF-202303-CC08-2 QP030-E41 Page7of10 3.TestResults 3.1Teststandard NameParameterMethodStandardno. Mobile communication antenna Antennagain Genericspecification forantennasusedinthe mobilecommunications GB/T 9410-2008 Radiationpattern VSWR Antenna Radiationefficiency IEEEStandardTest ProceduresforAntennas ANSI/IEEEStd 149-2021 Gainanddirectivity 3.2Testuncertainty TheuncertaintywascalculatedonthebasisoftheGUMpublishedbyISO,usingthe inclusionfactorofK=2andthe95%confidenceleveltoexpresstheextended uncertainty. ItemUncertainty VSWR±0.3 Antennagain±1dB Radiationefficiency ± 10% ReportNo.:RFI-LAB-RF-202303-CC08-2 QP030-E41 Page8of10 3.3Testdata 3.3.1VSWRparameters 3.3.2VSWRdata 3.3.3Typicalfreespaceefficiencyandgain Frequency/MHz 191019201930 VSWR 6.14845.96805.7979 Frequency/MHz 19101912191419161918192019221924192619281930 PeakGain/dBi -10.36-10.58-10.95-10.91-10.90-10.95-11.19-11.49-11.69-11.74-11.75 Efficiency/% 2.722.602.492.5…

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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 53 FCC-RF TEST REPORT Applicant Name : Xiamen VBeT Electronic Co., Ltd. Address : N403, Weiye Building, Xiamen Pioneering Park for Overseas Chinese Scholars, PRC Report Number : RA221207-59812E-RF-00 FCC ID: 2AC67-W320BS Test Standard (s) FCC PART 15D Sample Description Product Type: DECT Wireless Headset Model No.: VT W320 Multiple Model(s) No.: VT W320 Duo,VT W320 Mono,W320,W320 Duo,W320 Mono Trade Mark: VT Date Received: 2022/12/07 Report Date: 2023/03/08 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Andy Yu Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: RA221207-59812E-RF-00 Version 55: 2021-11-09 Page 2 of 53 FCC-RF TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 4 GENERAL INFORMATION ....................................................................................................................................... 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 5 OBJECTIVE ................................................................................................................................................................... 5 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 6 TEST FACILITY ............................................................................................................................................................. 6 SYSTEM TEST CONFIGURATION .......................................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 7 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 7 LOCAL SUPPORT EQUIPMENT LIST AND DETAILS ........................................................................................................ 7 EXTERNAL I/O CABLE ....................…

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