2AHN6-AUBS171BLTH Rugged Oval SPKR W/Handle

Bytech NY Inc. 2585 West 13th Street,Brooklyn NY 11223, NewYork, United States Tel: 718-449-3700 |Fax: 718-449-2488 E-mail: [email protected] Date: 2021/07/01 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: The RF chip, model AB5365C, which installed in our product BLTH Rugged Oval SPKR W/Handle, Model: BY-AU-BS-171-BK, FCC ID: 2AHN6-AUBS171, supports BDR (GFSK), EDR (π/4-DQPSK, 8DPSK) For use in America and this chip will not support/enable BLE function. The BLE function has been shielded by the manufacturer using the software. ,and BLE.

AB5365C TF USB U TF BAT MIC BT_ANT FM KEY 2018E USB Y1:26M AUX AUX USB charging port External charging adapter MIC Input Battery powered Input Input Disk Input 2in1 Jack Crystal oscillator Bluetooth antenna Master IC antenna antenna FM Audio Button control Amplifier output Amplifier Cable Speaker 2402~2480MHz Only RX

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF Page 1 of 3 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF Page 2 of 3 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF Page 3 of 3

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF 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)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF Page 1 of 4 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF Page 2 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF Page 3 of 4 Bluetooth Antenna Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF Page 4 of 4

Circuit description: 1、Machine can be charged by external adapter. 2、Machine can be turned on/off by a switch. It can be switched among different functions by controlling buttons after power on. 3、Machine can play music files in external carriers such as USB drive after power on. 4、 Machine ’ s bluetooth: 2402-2480MHz& FM modes are based on signals received by antenna After turned on machine via its switch, machine will feed power to master control; Master control can work normally by the participation of a 26M vibrating crystal. User can give different instructions by pushing buttons or insert external subjects(Such as USB drive).Master control would issue corresponding signals 、control amplifier ic and control led buld after received different instructions, which can make sure the machine work regularly. Machine ’ s Bluetooth chip AB5365C is the master, Voltage Range:DC3.7V from battery or DC 5.0V from USB port) (Antenna Specification:-0.68dBi, Bluetooth

1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 17 18 19 20 21 22 23 24 U7 5365C C3 105 1 2 3 45 6 7 8 U3 4165B C12 104 C9 20K R6 563 C6 225 1 VBUS 2 D- 3 D+ 4 ID 5 GND 6 SHIELD1 7 SHIELD2 8 SHIELD3 9 SHIELD4 USB2 D2 RED R12 1K 1 2 34 5 U2 4054 R10 2.7K 1 2 3 4 PHONE1 PHONE-CK-3.5HD C7 NC R19 NC 1 DAT2 2 DAT3 3 CMD 4 VDD 5 CLK 6 VSS 7 DAT0 8 DAT1 9 CD 10 SHIELD 11 SHIELD 12 SHIELD 13 SHIELD J1 CARD1 R4 4R7 +5V DM DP GND USB5 USB-A C10 104 BT-ANT Y1 26MHZ D1 BLUE 1 2 3 SW1 SW1 BAT1 3.4V~4.2V R24 22R SPOUT13 SPOUT14 SPOUT8 SPOUT4 SPOUT11 1 2 3 45 6 7 8 U5 NC C2 NC C1 NC R20 NC C5 NC SPOUT6 C15 NC R1 2K C11 NC R2 470K C13 104 S1 S2 S3 S4 R11 15K R23 47K Q1 NC R3 NC R9 0R R7 NC R8 NC SPOUT12 SPOUT1 D3 NC FM-ANT MUTE MUTE VMCU AB/D DACL AB/D VDDDAC ADKEY USBDM ADKEY VDDDAC SD_DAT SD_CMD USBDM USBDP VMCU LED_OFF/ON USBDP SD-DAT SD-CLK SD-CMD MIC AUX-IN DACL VMCU KEY1 SD-CLK VMCU VMCU VBAT VBAT MUTE VMCU AB/D DACL AUX-IN MIC AUX-IN VDDDAC KEY1 ADKEY VMCU LED_OFF/ON Main control, blue light, schematic diagramButton circuit Power amplifier circuit Charging, AUX circuit Battery circuit Lamp circuit TF card socket circuit U Disk socket circuit Microphone circuit AB

Note: 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 lnc. 2585 West 13th Street Brooklyn NY 11223 USA FCC ID: 2AHN6-AUBS171 Report Type: Original Report Product Type: BLTH Rugged Oval SPKR W/Handle Re port Number: SZ3210518-17924E-00 Re port Date: 2021-06-19 Reviewed B y: Jimmy Xiao RF En gineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 5F(B-West) , 6F, 7F, the 3rd Phase of Wan Li Industrial Building D, Shihua Rd, FuTian Free Trade Zone, Shenzhen, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: SZ3210518-17924E-00 FCC Part 15.247 Page 2 of 57 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 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 DATA ................................................................................................................................................................ 13 FCC §15.205, §15.209 & §15.247(d) – RADIATED EMISSIONS ........................................................................... 16 APPLICABLE STANDARD ..…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Side View Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210518-17924E-RF Radiated Spurious Emissions View (Below 1 GHz) Radiated Spurious Emissions View (Above 1 GHz)