2AHN6-AUBE301BE Earbuds-WT

FCC ID:2AHN6-AUBE301

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AB5357T 1KEY

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&.BJM TPMJNJ[!CZUFDIJOUMDPN   2020/02/11 Product Similarity Declaration To Whom It May Concern, We, Bytech NY Inc. hereby declare that we have a product named as BE Earbuds-WT ( Model no: TB-AU-BE-301-WT) (FCC ID: 2AHN6-AUBE301)was tested by BACL, meanwhile, for our marketing purpose, we would like to list a series models TB-AU-BE-400-AC , on reports and certificate, all the models are identical schematics, except for the differences as below, 1. Difference model No. 2. Difference model No. has different appearance Color Model No. Description TB-AU-BE-301-WT Different appearance Color TB-AU-BE-400-AC Different appearance Color No other changes are made to them. We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Signature: Printed Name: Soli Mizrahi Title: President

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&.BJM TPMJNJ[!CZUFDIJOUMDPN Date:2020/02/15  To:FEDERALCOMMUNICATIONSCOMMISSION AuthorizationandEvaluationDivision 7435OaklandMillsRoadColumbia,MD21046  We,BytechNYInc.herebydeclarethat˖  ProductName:BEEarbudsWT ModelNo:TBAUBE301WT,TBAUBE400AC FCCID: $+1$8%(  ForBTMode:BLE1M/2Maredisablebysoftware  FortheEarBuds:Therightheadsetandtheleftheadsethavetheidentical circuitdiagram,PCBlayout,antennaandkeycomponents.  ForBelowareactivated: BluetoothBDR(GFSK),EDR(/4DQPSK),EDR(8DPSK)  Exceptforthemanufacturer,theenduserdoes nothaveanycapabilityto modify/changetheRFparameters.Weacknowledgethatitisthe manufacturer’sresponsibilitytoprovidetheradioconfigurationstoensure compliancewithCommission’srules.  SincerelyYours, Signature: PrintedName:SoliMizrahi Title:President

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS

EXHIBIT A - FCC ID LABEL AND LOCATION 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)

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Left ear BT antenna right ear

The audio files are opened through the audio Player (eg: Media Player). The audio files are decoded and then processed by the Bluetooth module, which is sent to the client-side Bluetooth device by the RF wireless module. After receiving the wireless signal, the client-end Bluetooth device is filtered and stabilized, and then processed by the microchip AB5357T, which is directly played by the Speaker. Frequency: 2.402-2.48 GHz Modulation: GFSK, π/4-DQPSK, 8DPSK Antenna Type: PCB antenna Antenna Gain: 0dBi Crystal: 26MHz

C B A C D 6 5 4 3 2 1 D B A C3 105 1 PE7/ADC9 2 AGND 3 PE0 4 VUSB 5 VDDIO 6 VBAT 7 DGND 8 VDDBT 16 DACL 15 DACR 14 ADC10/MICL/PF2 13 ADC5/PB3 12 BT_OSCO 11 BT_OSCI 10 BT_ANT 9 PWRKEY U1 Y1 26M L1 0R L2 NC L3 NC BT-ANT ANTENNA_PIFA D1 BLUE C4 NC D2 RED L+ L- S1 POWER/PP/PHONE 1 + 2 - M1 DC+ DC- VBAT GND R1 NC VDDIO VBAT MICIN OSCO OSCI BT_ANT PWRKEY +5V PWRKEY LED VDDIO LED VUSB VBAT MICIN AB5357T

Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. BACL 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. FCC PART 15.247 TEST REPORT For Bytech NY Inc. 2585 West 13th Street, Brooklyn NY 11223 NewYork United States FCC ID: 2AHN6-AUBE301 Report Type: Original Report Product Type: BE Earbuds-WT Re port Number: RSZ191121832-00 Re port Date: 2020-01-16 Reviewed B y: Nancy Wang RF En gineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ191121832-00 FCC Part 15.247 Page 2 of 30 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 SPECIAL ACCESSORIES ................................................................................................................................................. 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 6 EXTERNAL I/O CABLE .................................................................................................................................................. 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 FCC§15.247 (i), §1.1307 (b) (1) &§2.1093 – RF EXPOSURE ...................................................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 EUT SETUP ................................................................................................................................................................ 12 EMI TEST RECEIVER SETUP ....................................................................................................................................... 12 TEST PROCEDURE ...................................................................................................................................................... 12 CORRECTED FACTOR & MARGIN CALCULATION ....................................................................................................... 13 TEST RESULTS SUMMARY .…

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Appendix A: 20dB Emission Bandwidth Test Result TestMode AntennaChannel 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH1 Ant1 2402 0.924 2401.529 2402.453 --- PASS 2441 0.924 2440.532 2441.456 --- PASS 2480 0.927 2479.532 2480.459 --- PASS 2DH1 Ant1 2402 1.215 2401.355 2402.570 --- PASS 2441 1.218 2440.352 2441.570 --- PASS 2480 1.218 2479.352 2480.570 --- PASS 3DH1 Ant1 2402 1.218 2401.379 2402.597 --- PASS 2441 1.221 2440.376 2441.597 --- PASS 2480 1.221 2479.376 2480.597 --- PASS Test Graphs DH1_Ant1_2402 DH1_Ant1_2441 DH1_Ant1_2480 2DH1_Ant1_2402 2DH1_Ant1_2441 2DH1_Ant1_2480 3DH1_Ant1_2402 3DH1_Ant1_2441 3DH1_Ant1_2480 Appendix B: Maximum conducted output power Test Result TestMode Antenna Channel Result[dBm] Limit[dBm] Verdict DH1 Ant1 2402 -0.96 <=20.97 PASS 2441 -2.34 <=20.97 PASS 2480 -3.24 <=20.97 PASS 2DH1 Ant1 2402 -0.39 <=20.97 PASS 2441 -1.7 <=20.97 PASS 2480 -2.91 <=20.97 PASS 3DH1 Ant1 2402 0.11 <=20.97 PASS 2441 -1.27 <=20.97 PASS 2480 -2.16 <=20.97 PASS Test Graphs DH1_Ant1_2402 DH1_Ant1_2441 DH1_Ant1_2480 2DH1_Ant1_2402 2DH1_Ant1_2441 2DH1_Ant1_2480 3DH1_Ant1_2402 3DH1_Ant1_2441 3DH1_Ant1_2480 Appendix C: Carrier frequency separation Test Result TestMode Antenna Channel Result[MHz] Limit[MHz] Verdict DH1 Ant1 Hop 1.003 >=0.616 PASS 2DH1 Ant1 Hop 1.003 >=0.812 PASS 3DH1 Ant1 Hop 1 >=0.814 PASS Test Graphs DH1_Ant1_Hop 2DH1_Ant1_Hop 3DH1_Ant1_Hop Appendix D: Time of occupancy Test Result TestMode AntennaChannel BurstWidth [ms] TotalHops [Num] Result[s]Limit[s] Verdict DH1 Ant1 Hop 0.39 330 0.13 <=0.4 PASS DH3 Ant1 Hop 1.64 180 0.295 <=0.4 PASS DH5 Ant1 Hop 2.88 110 0.317 <=0.4 PASS 2DH1 Ant1 Hop 0.40 320 0.129 <=0.4 PASS 2DH3 Ant1 Hop 1.65 170 0.28 <=0.4 PASS 2DH5 Ant1 Hop 2.89 130 0.375 <=0.4 PASS 3DH1 Ant1 Hop 0.40 330 0.133 <=0.4 PASS 3DH3 Ant1 Hop 1.65 180 0.297 <=0.4 PASS 3DH5 Ant1 Hop 2.89 120 0.347 <=0.4 PASS Note 1：A period time=0.4*79=31.6(S), Total of Dwell=Pluse Time*Hopping Number Note 2: Hopping Number=Hopping Number in 3.16s*10 Note 3: Hoping Number in 3.16s=Total of highest signals in 3.16s(Secong high signals were other channel) Test Graphs DH1_Ant1_Hop DH3_Ant1_Hop DH5_Ant1_Hop 2DH1_Ant1_Hop 2DH3_Ant1_Hop 2DH5_Ant1_Hop 3DH1_Ant1_Hop 3DH3_Ant1_Hop 3DH5_Ant1_Hop Appendix E: Number of hopping channels Test Result TestMode Antenna Channel Result[Num] Limit[Num] Verdict DH1 Ant1 Hop 79 >=15 PASS 2DH1 Ant1 Hop 79 >=15 PASS 3DH1 Ant1 Hop 79 >=15 PASS Test Graphs DH1_Ant1_Hop 2DH1_Ant1_Hop 3DH1_Ant1_Hop Appendix F:Band edge measurements Test Graphs DH1_Ant1_Low_2402 DH1_Ant1_High_2480 DH1_Ant1_Low_Hop_2402 DH1_Ant1_High_Hop_2480 2DH1_Ant1_Low_2402 2DH1_Ant1_High_2480 2DH1_Ant1_Low_Hop_2402 2DH1_Ant1_High_Hop_2480 3DH1_Ant1_Low_2402 3DH1_Ant1_High_2480 3DH1_Ant1_Low_Hop_2402 3DH1_Ant1_High_Hop_2480

EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Side View Radiated Emissions View (Below 1 GHz) Radiated Emissions View (Above 1 GHz)