2BF7DWETALK-AIRWetalk-Air

QuickStart Step1:PowerOn Press-and-holdthemodebuttonandthe volumeupbutton. poweron MODEBUTTON Step2:Preparing Afterpoweringon,thedevicedefaultsto theBluetoothmode.Clickthemode buttononcetoswitchtotheIntercom mode. intercommode MODEBUTTON Step3:Networking Clickthemodebuttontwiceononeof thedevicestostartthenetworking process.youwillhear“enternetworking mode”,waitforawhileandhear “networkingsuccessful”. enternetworkingmode... ConnectwithOthers JoinaGroup Togroupwithothers,afterfinishingthe step2,thenholdthenewdevicenear eachother,andholdoneofthedevice thatisalreadyconnectedandclickthe modebuttontwiceuntilyouhear"enter networkingmode",waitforawhileand hear"networkingsuccessful". enternetworkingmode... MODEBUTTON (CLICKTWICE) YN LeaveaGroup Method1:Poweroff Press-and-holdthemodebuttonandthe volumeupbutton. Method2:Switchmode ClickthemodebuttontotheBluetooth mode.Ifyouwanttogetbackthegroup, youcanswitchovertheIntercommode. CleartheNetworking Information InIntercommode,press-and-holdthe modebuttonandthevolumedown button.Youwillcleartheinformation aboutthecurrentnetworkingdevice.If youwanttoconnectthemagain,you needtostartfromthestep1. VOLUMEUP OtherFunction MuteMode Press-and-holdthemodebuttonfor2 secondstoentermutemodeuntilyou hear“muteon”.Repeattheoperationto cancelmutemodeuntilyouhear“mute off” BluetoothMode Clickthemodebuttononceuntilyou hear“Bluetoothmode”.Youcanconnect thedevicetoyourphoneandplaymusic asaportablespeaker. One-clickthemodebutton: Answeracall/hangupacall Double-clickthemodebutton: Rejectacall CleartheBluetoothInformation InBluetoothmode,Press-and-holdthe modebuttonandvolumedownbutton for2seconds SuccessTips NotontheSameGroup Duetoafalsetouch,multipledevices arenetworkedseparatelyandcannotbe connectedinonegroup.Youneedto clearthenetworkinginformationfor eachdeviceandstartfromthestep1. UnsuccessfulConnection? Pleasepoweritoff(Press-and-holdthe modebuttonandthevolumeupbutton atthesametime)andtryagain. Can'thearthesoundafterthe networkingissuccessful? Afterthenetworkingissuccessful,ifyou can'thearthesoundwithin3meter, you'llneedtostayawayfromyour partnertomakeanormalcall.Because wedidthenoisecancellationfunction. Feature&Controls Charging UseaUSB-Ccabletochargefromany poweradapter. ●Stillcharging ·Fullycharged CustomerSupport:[email protected] Thisdevicecomplieswithpart15oftheFCCRules. Operationissubjecttothefollowingtwoconditions:(1) Thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived, includinginterferencethatmaycauseundesired operation. FCCwarning: AnyChangesormodificationsnotexpresslyapproved bythepartyresponsibleforcompliancecouldvoidthe user'sauthoritytooperatetheequipment. Note:Thisequipmenthasbeentestedandfoundto complywiththelimitsforaClassBdigitaldevice, pursuanttopart15oftheFCCRules.Theselimitsare designedtoprovidereasonableprotectionagainst harmfulinterferenceinaresidentialinstallation.This equipmentgeneratesusesandcanradiateradio frequencyenergyand,ifnotinstalledandusedin accordancewiththeinstructions,maycauseharmful interferencetoradiocommunications.However,there isnoguaranteethatinterferencewillnotoccurina particularinstallation.Ifthisequipmentdoescause harmfulinterferencetoradioortelevisionreception, whichcanbedeterminedbyturningtheequipmentoff andon,theuserisencouragedtotrytocorrectthe interferencebyoneormoreofthefollowingmeasures: -Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentand receiver. -Connecttheequipmentintoanoutletonacircuit differentfromthattowhichthereceiverisconnected. -Consultthedealeroranexperiencedradio/TV technicianforhelp. ThedevicehasbeenevaluatedtomeetgeneralRF exposurerequirement.Thedevicecanbeusedin portableexposureconditionwithoutrestriction. MESH COMMUNICATOR The Wetalk-Air has been tested for body-worn Specific Absorption Rate (SAR) compliance. The FCC has established detailed SAR requirements and has established that these requirements. RF Exposure Information The radio module has been evaluated under FCC Bulletin C95.1 and IEEE 1528 and found to be compliant to RF Exposure from radio frequency devices. This model meets the applicable government requirements for exposure to radio frequency waves. The highest reported SAR level for usage near the body (0mm) is 0.815W/kg, and for the simultaneous transmission is 0.815W/kg

Shenzhen Pengbo Microelectronics Co.Ltd 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – EquipmentType Company name: Shenzhen Pengbo Microelectronics Co.Ltd Address: Room601B,6F,Block B,Building3,Phase1,Cloud park,Bantian Street, Longgang District,Shenzhen,GuangDong,518129,China Product Name: Wetalk-Air FCCID: 2BF7DWETALK-AIR Model(s): Wetalk-Air 2.911(d)(5)(i) EquipmentType We, [Shenzhen Pengbo Microelectronics Co.Ltd] (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Sen Luo Date: 2024/06/20 Title and Company name: sales / Shenzhen Pengbo Microelectronics Co.Ltd NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Shenzhen Pengbo Microelectronics Co.Ltd 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Shenzhen Pengbo Microelectronics Co.Ltd Address: Room601B,6F,Block B,Building3,Phase1,Cloud park,Bantian Street, Longgang District,Shenzhen,GuangDong,518129,China Product Name: Wetalk-Air FCCID: 2BF7DWETALK-AIR Model(s): Wetalk-Air 2.911(d)(5)(ii) Applicant filing We, [Shenzhen Pengbo Microelectronics Co.Ltd] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 ,established pursuant to §1.50002 of this chapter,as an entity producing coveredcommunications equipment. Yours sincerely, Name: Sen Luo Date: 2024/06/20 Title and Company name: sales / Shenzhen Pengbo Microelectronics Co.Ltd NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Shenzhen Pengbo Microelectronics Co.Ltd 2024.06.20 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR Product Name: Wetalk-Air FCCID: 2BF7DWETALK-AIR Model(s): Wetalk-Air To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Sen Luo / sales Contact information / address: Room601B,6F,Block B,Building3,Phase1,Cloud park,Bantian Street,Longgang District,Shenzhen,GuangDong,518129,China

Shenzhen Pengbo Microelectronics Co.Ltd 2024.06.20 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION Product Name: Wetalk-Air FCCID: 2BF7DWETALK-AIR Model(s): Wetalk-Air To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title : Sen Luo / sales Contact information / address: Room601B,6F,Block B,Building3,Phase1,Cloud park,Bantian Street,Longgang District,Shenzhen,GuangDong,518129,China

External Photos

Size:40*40mm Model : Wetalk-Air FCC ID: 2BF7DWETALK-AIR This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Label location

Internal Photos BLE Antenna BT Antenna

No.：BCTC/RF-EMC-005 Page 1 of 68 Edition：B.2 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2405263146-3E Applicant: Shenzhen Pengbo Microelectronics Co.Ltd Product Name: Wetalk-Air Test Model: Wetalk-Air Tested Date: 2024-05-06 to 2024-06-18 Issued Date: 2024-06-24 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 2 of 68 Edition：B.2 FCC ID:2BF7DWETALK-AIR The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Wetalk-Air Trademark: N/A Model/Type Ref.: Wetalk-Air Applicant: Shenzhen Pengbo Microelectronics Co.Ltd Address: Room601B,6F,Block B,Building3,Phase1,Cloud park,Bantian Street,Longgang District,Shenzhen,GuangDong,518129,China Manufacturer: Shenzhen Pengbo Microelectronics Co.Ltd Address: Room601B,6F,Block B,Building3,Phase1,Cloud park,Bantian Street,Longgang District,Shenzhen,GuangDong,518129,China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2024-05-06 Sample tested Date: 2024-05-06 to 2024-06-18 Issue Date: 2024-06-24 Test Standards: IEEE Std C95.1, 2019 IEEE Std 1528™-2013 FCC Part 2.1093 Test Results: PASS Remark: This is SAR test report Tested by: Approved by: Min Zhi Cheng/ Project Handler Zero Zhou/Reviewer Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 3 of 68 Edition：B.2 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Standards ...................................................................................................... 6 3. Test Summary ....................................................................................................... 7 4. SAR Limits............................................................................................................. 8 5. Measurement Uncertainty ..................................................................................... 9 6. Product Information and Test Setup .................................................................... 10 6.1 Product Information ............................................................................................... 10 6.2 Test Setup Configuration ....................................................................................... 11 6.3 Support Equipment ................................................................................................ 11 6.4 Test Environment .................................................................................................. 11 7. Test Facility and Test Instrument Used ............................................................... 12 7.1 Test Facility ........................................................................................................... 12 7.2 Test Instrument Used ............................................................................................ 13 8. Specific Absorption Rate (SAR) .......................................................................... 14 8.1 Introduction ............................................................................................................ 14 8.2 SAR Definition ....................................................................................................... 14 9. SAR Measurement System ................................................................................. 15 9.1 The Measurement System ..................................................................................... 15 9.2 Probe ..................................................................................................................... 15 9.3 Probe Calibration Process ..................................................................................... 17 9.4 Phantom ................................................................................................................ 18 9.5 Device Holder ........................................................................................................ 18 10. Tissue Simulating Liquids .................................................................................... 19 10.1 Composition of Tissue Simulating Liquid ............................................................. 19 10.2 Limit ..................................................................................................................... 20 10.3 Tissue Calibration Result ..................................................................................... 21 11. System Check ..................................................................................................... 22 11.1 Purpose of System Performance Check .............................................................. 22 11.2 System Setup ...................................................................................................... 22 11.3 Validation Results ................................................................................................ 23 12. EUT Testing Position ........................................................................................... 24 13. SAR Measurement Procedures ........................................................................... 25 13.1 Measurement Procedures ................................................................................... 25 13.2 Spatial Peak SAR Evaluation .............................................................................. 25 13.3 Area & Zoom Scan Procedures ........................................................................... 26 13.4 Volume Scan Procedures ................................…

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Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 53 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 54 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 55 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 56 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 57 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 58 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 59 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 60 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 61 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 62 of 68 Edition：B.2 Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 63 of 68 Edition：B.2 17. EUT Photographs EUT Front View EUT Back View Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 64 of 68 Edition：B.2 EUT Antenna View BLE Antenna BT Antenna Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 65 of 68 Edition：B.2 18. Photographs Of The Liquid Photograph of the depth in the Body Phantom (600-10000MHz, depth >15cm) Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 66 of 68 Edition：B.2 19. EUT Test Setup Photographs Front Back Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 67 of 68 Edition：B.2 Top Bottom Report No：BCTC2405263146-3E No.：BCTC/RF-EMC-005 Page 68 of 68 Edition：B.2 STATEMENT 1. The equipment lists are traceable to the national reference standards. 2. The test report can not be partially copied unless prior written approval is issued from our lab. 3. The test report is invalid without the "special seal for inspection and testing". 4. The test report is invalid without the signature of the approver. 5. The test process and test result is only related to the Unit Under Test. 6. Sample information is provided by the client and the laboratory is not responsible for its authenticity. 7. The quality system of our laboratory is in accordance with ISO/IEC17025. 8. If there is any objection to this test report, the client should inform issuing laboratory within 15 days from the date of receiving test report. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China TEL: 400-788-9558 P. C.: 518103 FAX: 0755-33229357 Website: http://www.chnbctc.com Consultation E-mail: [email protected] Complaint/Advice E-mail: [email protected] ※※※※※ END ※※※※※

5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728｜Fax: 886-3-4072738 ｜[email protected] 1 www.etek.com.tw © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com WiFi/Bluetooth Chip Antenna MODEL: AA055U P/N: H2U34W1H1Z0700 Features  Stable and reliable in performances  Low profile, compact size  RoHS 2.0 compliance  SMT processes compatible  AEC-Q200 compliant Applications  ISM 2.4 GHz applications  ZigBee/BLE applications  Bluetooth earphone systems  Hand-held devices when WiFi / Bluetooth functions are needed, e.g., Smart phones  IEEE802.11 b/g/n  Wireless PCMCIA cards or USB dongles 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728｜Fax: 886-3-4072738 ｜[email protected] 2 www.etek.com.tw © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com Specifications Mechanical Specifications Dimensions (mm) 3.2 (L) x 1.6 (W) x 0.5 (H) Material Ceramic Environmental Conditions Operation Temperature ( o C) -40 ~ +85 Storage Temperature ( o C) -5 ~ +40 Relative Humidity 10 ~ 70 % Mechanical Dimensions (unit：mm) *This specification is subject to change without prior notice Items Specifications Frequencies (MHz) 2400~2500 VSWR 2 Max. Efficiency (%) 76.3 Typ. Peak Gain (dBi) 1.8 Typ. Test Condition 80 x 40 mm² (Evaluation board) Impedance (Ω) 50 Polarization Linear Polarization

No.：BCTC/RF-EMC-005 Page: 1 of 81 Edition：B.2 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2405263146-1E Applicant: Shenzhen Pengbo Microelectronics Co.Ltd Product Name: Wetalk-Air Test Model: Wetalk-Air Tested Date: 2024-05-06 to 2024-05-11 Issued Date: 2024-06-24 Report No.: BCTC2405263146-1E No.：BCTC/RF-EMC-005 Page: 2 of 81 Edition：B.2 FCC ID:2BF7DWETALK-AIR The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Wetalk-Air Trademark: N/A Model/Type Reference: Wetalk-Air Prepared For: Shenzhen Pengbo Microelectronics Co.Ltd Address: Room601B,6F,Block B,Building3,Phase1,Cloud park,Bantian Street,Longgang District,Shenzhen,GuangDong,518129,China Manufacturer: Shenzhen Pengbo Microelectronics Co.Ltd Address: Room601B,6F,Block B,Building3,Phase1,Cloud park,Bantian Street,Longgang District,Shenzhen,GuangDong,518129,China Prepared By: Shenzhen BCTC Testing Co., Ltd Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2024-05-06 Sample Tested Date: 2024-05-06 to 2024-05-11 Report No.: BCTC2405263146-1E Test Standards FCC Part15.247 ANSI C63.10-2013 Test Results PASS Remark: This is Bluetooth Classic radio test report. Tested by: Approved by: Brave Zeng/ Project Handler Zero Zhou/Reviewer Report No.: BCTC2405263146-1E No.：BCTC/RF-EMC-005 Page: 3 of 81 Edition：B.2 Table of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information and Test Setup ...................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 8 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT operating Conditions ................................................................................... 13 6.5 Test Result .......................................................................................................... 14 7. Radiated emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test procedure .................................................................................................... 18 7.4 EUT operating Conditions ................................................................................... 19 7.5 Test Result .......................................................................................................... 20 8. Radiated Band Emission Measurement and Restricted Bands of Operation ...... 24 8.1 Block Diagram Of Test Setup .............................................................................. 24 8.2 Limit .................................................................................................................... 24 8.3 Test procedure .................................................................................................... 25 8.4 EUT operating Conditions ................................................................................... 25 8.5 Test Result .......................................................................................................... 26 9. Spurious RF Conducted Emissions ..................................................................... 27 9.1 Block Diagram Of Test Setup .............................................................................. 27 9.2 Limit .................................................................................................................... 27 9.3 Test procedure .................................................................................................... 27 9.4 Test Result ...............................................................…

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TEST SETUP PHOTOGRAPHS 1.1. Photos of Radiation Emission Measurement Conducted Emission Measurement Photos Radiated Measurement Photos ----------------The end----------------