2A8Z5-PTTPTT(PUSH TO TALK BUTTON)

SIZE:50*78MM

Tango Tango, Inc 7800 Madison Blvd Unit 702, Huntsville, Alabama 35806, United States Date: 2023-03-20 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d) (5) (i) Filing SUBJECT: FCC Application for FCC ID: 2A8Z5-PTT To Whom It May Concern: Tango Tango, Inc 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, Signatory [Chris Fernandez, Engineering]

Tango Tango, Inc 7800 Madison Blvd Unit 702, Huntsville, Alabama 35806, United States Date: 2023-03-20 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d) (5) (ii) Filing SUBJECT: FCC Application for FCC ID: 2A8Z5-PTT To Whom It May Concern: Tango Tango, Inc 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, Signatory [Chris Fernandez, Engineering]

Tango Tango, Inc 7800 Madison Blvd Unit 702, Huntsville, Alabama 35806, United States Date: 2023-02-16 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Ref: Attestation Statements Part 2.911(d) (7) Filing FCC Grantee Code: 2A8Z5 Tango Tango, Inc certi
es that, as of the date of the
ling of the application, we designate ourselves as the U.S. agent for service of process. Designated U.S. Agent Information: Name:Tango Tango, Inc FRN: 0032997504 Address:7800 Madison Blvd Unit 702, Huntsville, Alabama 35806, United States Contact Person: Chris Fernandez Tel.: (888) 826-4607 Email: [email protected] Sincerely, Signatory [Chris Fernandez, Engineering] Rev 1/26/2023 y, Signatoryyyy

Tango Tango, Inc 7800 Madison Blvd Unit 702, Huntsville, Alabama 35806, United States ---------------------------------------------------------------------------------------- (FCC ID: 2A8Z5-PTT) March 20, 2023 LABEL LOCATION JUSTIFICATION LETTER TO WHOM IT MAY CONCERN: Due to the small size of the device, label will be placed on the packing box and at the bottom of the cover page of user manual to ensure that the label will be readily visible at the time of purchase BEST REGARDS, Tango Tango, Inc ------------------------------- (Chris Fernandez) (Engineering)

Tango Tango, Inc 7800 Madison Blvd Unit 702, Huntsville, Alabama 35806, United States -------------------------------------------------------------------------------- (FCC ID：2A8Z5-PTT) POWER OF ATTORNEY DATE: 2023-03-20 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, Tango Tango, Inc are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, Tango Tango, Inc ------------------------------- (Chris Fernandez) (Engineering)

Reference No.: WTX22X09180983W001 Page 2 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 Reference No.: WTX22X09180983W001 Page 3 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX22X09180983W001 Page 4 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6

Reference No.: WTX22X09180983W001 Page 1 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format FCC ID: 2A8Z5-PTT Specifications: Due to the small size of the device, label will be placed on the packing box and at the bottom of the cover page of user manual to ensure that the label will be readily visible at the time of purchase Proposed Label Location on EUT FCC ID Label Location UserManual packing box

Reference No.: WTX22X09180983W001 Page 5 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 Solder Board-Component View 1 Reference No.: WTX22X09180983W001 Page 6 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 2 Solder Board-Component View 3 Reference No.: WTX22X09180983W001 Page 7 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Antenna View

1. RF Exposure Requirements 1.1 General Information Client Information Applicant: Tango Tango, Inc Address of applicant: 7800 Madison Blvd Unit 702, Huntsville, AL 35806 Manufacturer: Proydom technology Co.,LTD Address of manufacturer: 2F,15build,XinHexin industry, FuHai Road, FuYong Street, ShenZhen City, China General Description of EUT: Product Name: PTT(PUSH TO TALK BUTTON) Trade Name TangoTango Model No.: A01.22 Adding Model(s): / Rated Voltage: DC 3V Power Adapter: / FCC ID: 2A8Z5-PTT Equipment Type: Portable device Technical Characteristics of EUT: Bluetooth Bluetooth Version: V5.0 (BLE mode) Frequency Range: 2402-2480MHz RF Output Power: 1.82dBm (Conducted) Data Rate: 1Mbps Modulation: GFSK Quantity of Channels: 40 Channel Separation: 2MHz Type of Antenna: PCB Antenna Antenna Gain: -4.88dBi 1.2 RF Exposure Exemption According to §1.1307(b)(3) and KDB 447498 D04 Interim General RF Exposure Guidance v01, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. Option A: FCC Rule Part 1.1307 (b)(3)(i)(A):The available maximum time-averaged power is no more than 1mW, regardless of separation distance. Option B: FCC Rule Part 1.1307 (b)(3)(i)(B): The available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold P th (mW) described in the following formula. P th is given by: Option C: FCC Rule Part 1.1307 (b)(3)(i)(C): The minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. R must be at least λ/2π, where λ is the free-space operating wavelength in meters. Single RF Sources Subject to Routine Environmental Evaluation RF Source frequency (MHz) Threshold ERP (watts) 0.3-1.34 1,920 R 2 1.34-30 3,450 R 2 /f 2 30-300 3.83 R 2 300-1,500 0.0128 R 2 f 1,500-100,000 19.2R 2 For Multiple RF sources: FCC Rule Part 1.1307(b)(3)(ii): (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as a single source (separation is not required). (B) In the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation. 1.3 Calculated Result Radio Access Technology Prediction Frequency Output Power Antenna Gain Duty Cycle Tune-Up Time-Averaged Power ERP (MHz) (dBm) (dBi) (%) (dBm) (dBm) Bluetooth 2402 1.82 -4.88 100 2.00 -5.03 Frequency Option Min. Distance Max. Power Exposure Limit Ratio Result (MHz) (cm) (dBm) (mW) (mW) Pass/Fail 2402 B 0.5 2.00 1.58 2.788 0.57 Pass Note: 1. Time-Averaged Power=Output Power * Duty Cycle; ERP= Time-Averaged Power+ Antenna gain-2.15dB 2. Option A, B and C refers as clause 1.2. 3. For option B, Max (time-averaged power, effective radiated power (ERP)) converts to Max. Power. For option C, ERP converts to Max. Power; 4. For option B, P th (mW) converts to Exposure Limit (mW); For option C, ERP (W) converts to Exposure Limit (mW). 5. Ratio= Tune-Up ERP (mW)/ Exposure Limit (mW) Mode for Simultaneous Multi-band Transmission: Radio Access Technology Ratio 1 Ratio 2 Simultaneous Ratio Limit Result Pass/Fail -- -- -- -- -- -- Result: Pass

ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page1of9 TestingReport CustomerName:ProydomtechnologyCo.,LTD ProductName:Bluetoothbox SampleModel:Axiom ReferenceStandard:GB/T9410-2008;ANSI/IEEEStd149-1979 IssueDate:2022.9.30 Engineer:Date: Auditor:Date: Approver:Date: ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page2of9 Version VersionNo.DateDescriptionFormulateApproval A02022.9.30Forthefirsttime,formulateJacksonEason 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 2.4DUTsetupphotooffreespaceOTAtesting........................................................................6 3.TestResults......................................................................................................................................7 3.1Teststandard.........................................................................................................................7 3.2Testuncertainty.....................................................................................................................7 3.3Testdata................................................................................................................................8 3.3.1Typicalfreespaceefficiencyandgain......................................................................8 3.3.2Typicalfreespaceradiationpattern...........................................................................8 （Thefollowingisblank）................................................................................................................9 ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page3of9 1.GeneralInformation 1.1Generalinformationoftestinginstitutions Name ShenzhenRFI-LABCommunicationTechnologyCo.,Ltd. Address 10/FA,LingyunBld,LiufangRd,BaoanDistrict,SZ Tel 13631623357 E-mail [email protected] Equipment Alltheequipmentusedinthereportisfixedin 10/FA,LingyunBld,LiufangRd,BaoanDistrict,SZ 1.2Testingprinciple ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page4of9 1.3Testequipment EquipmentModelNo.SerialNo.Manufacturer Calibration date Next calibration date 16probe microwave chamber 3*3*2.5 RFI-LAB-RF -A00 SUNYIELD2021.3.152023.3.14 Network Analyzer E5071C RFI-LAB-RF -A02 Agilent 2022.5.132023.5.12 1.4Testenvironment Temperature 24.2°C Humidity 59%RH Pressure 100.08kPa 1.5Statement (1)Thetestresultsinthereportareonlyapplicabletothetestedsamplesandthetestedsamples workundertheenvironmentdescribedinthereport. (2)OnlyShenzhenRFI-LABCommunicationTechnologyCo.,Ltd.havetherighttomodifythe report,andthemodificationinformationshallbeannotatedintherevisionform. (3)Anyobjectiontothisreportshallberaisedwithin30daysafterformalconfirmationofthe report. (4)Thisreportisinvalidifthereisanyevidencethatthesampleinformationprovidedisfalsified. (5)Thereportisinvalidwithoutthesignatureoftheauditorandapprover. ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page5of9 2.SampleInformation 2.1Clientinformation Name TangoTango,Inc Address 7800MadisonBlvdUnit702,Huntsville,AL35806 Contacts ChrisFernandez Tel (888)826-4607 E-mail [email protected] Manufacturer ProydomtechnologyCo.,LTD 2.2DescriptionofEUT(S) ProductName AxiomBeacon_PushtoTalkInterface SampleModel AxiomBeacon AntennaSize 13.0588*4.7251mm AntennaType PCBAntenna SerialNo. / TestItem Antennagain;Efficiency;Radiationpattern FrequencyRange 2400-2500MHz ReceivedDate 2022.9.29 TestDate 2022.9.29 Remark ThelengthoftheRFcableis35mm ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page6of9 2.3EUTappearance 2.4DUTsetupphotooffreespaceOTAtesting Planform Frontview ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page7of9 3.TestResults 3.1Teststandard NameParameterMethodStandardno. Mobile communication antenna Antennagain Genericspecification forantennasusedinthe mobilecommunications GB/T 9410-2008 Radiationpattern Antenna Radiationefficiency IEEEStandardTest ProceduresforAntennas ANSI/IEEEStd 149-1979 Gainanddirectivity 3.2Testuncertainty TheuncertaintywascalculatedonthebasisoftheGUMpublishedbyISO,usingthe inclusionfactorofK=2andthe95%confidenceleveltoexpresstheextended uncertainty. ItemUncertainty Antennagain±1dB Radiationefficiency±10% ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page8of9 3.3 Testdata 3.3.1Typicalfreespaceefficiencyandgain 3.3.2Typicalfreespaceradiationpattern (1)X-ZPlane: (2)Y-ZPlane: Frequency/MHz 24002410242024302440245024602470248024902500 PeakGain/dBi -4.95-5.08-5.24-5.26-5.23-5.28-5.2-5.03-4.88-4.85-4.9 Efficiency/% 11.2010.8510.4310.4310.3610.4110.4010.9611.1911.0910.96 ReportNo.:RFI-LAB-RF-202209-II40 QP030-E11 Page9of9 (3)X-YPlane: (4)TypicalFreeSpace3DRadiationPatternat2.45GHz: -------------------------------------------------End------------------------------------------------ （Thefollowingisblank）

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 35 TEST REPORT Reference No. .................... : WTX22X09180983W001 FCC ID ................................ : 2A8Z5-PTT Applicant ........................... : Tango Tango, Inc Address.............................. : 7800 Madison Blvd Unit 702, Huntsville, AL 35806 Manufacturer ..................... : Proydom technology Co.,LTD Address.............................. : 2F,15build,XinHexin industry, FuHai Road, FuYong Street, ShenZhen City, China Product Name ................... : PTT(PUSH TO TALK BUTTON) Model No.. .......................... : A01.22 Standards .......................... : FCC Part 15.247 Date of Receipt sample .... : 2022-09-05 Date of Test........................ : 2022-09-05 to 2022-09-29 Date of Issue ..................... : 2022-09-29 Test Report Form No. ....... : WTX_Part 15_247W Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Email: [email protected] Tested by: Approved by: Jack Huang Silin Chen Reference No.: WTX22X09180983W001 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 2 of 35 TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ...............................................................................4 1.2 TEST STANDARDS ...................................................................................................................................................5 1.3 TEST METHODOLOGY .............................................................................................................................................5 1.4 TEST FACILITY .......................................................................................................................................................5 1.5 EUT SETUP AND TEST MODE .................................................................................................................................6 1.6 MEASUREMENT UNCERTAINTY ..............................................................................................................................7 1.7 TEST EQUIPMENT LIST AND DETAILS .....................................................................................................................8 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 10 3. ANTENNA REQUIREMENT ................................................................................................................................ 11 3.1 STANDARD APPLICABLE ....................................................................................................................................... 11 3.2 EVALUATION INFORMATION................................................................................................................................. 11 4. POWER SPECTRAL DENSITY ........................................................................................................................... 12 4.1 STANDARD APPLICABLE ....................................................................................................................................... 12 4.2 TEST SETUP BLOCK DIAGRAM ............................................................................................................................. 12 4.3 TEST PROCEDURE ................................................................................................................................................. 12 4.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 12 5. DTS BANDWIDTH ................................................................................................................................................. 13 5.1 STANDARD APPLICABLE ....................................................................................................................................... 13 5.2 TEST SETUP BLOCK DIAGRAM ............................................................................................................................. 13 5.3 TEST PROCEDURE ................................................................................................................................................. 13 5.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 13 6. RF OUTPUT POWER ............................................................................................................................................ 14 6.1 STANDARD APPLICABLE ....................................................................................................................................... 14 6.2 TEST SETUP BLOCK DIAGRAM ............................................................................................................................. 14 6.3 TEST PROCEDURE ................................................................................................................................................. 14 6.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 14 7. FIELD STRENGTH OF SPURIOUS EMI…

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Reference No.: WTX22X09180983W001 Page 8 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Radiation Emission Test Setup (Below 30MHz) Radiation Emission Test Setup (30MHz to 1GHz) Reference No.: WTX22X09180983W001 Page 9 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (1GHz to 18GHz) Radiation Emission Test Setup (Above 18GHz) Reference No.: WTX22X09180983W001 Page 10 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ***** END OF REPORT *****