2AHAS-MTH91002OMonster BT Transmitter/Receiver with Optical Port and 3.5mm Aux Jack w/Headband

IMPORTANT NOTE: Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help.

BT_ATN 1 Bluetooth antenna Crystaloscillator audio interface Function indicator OPtical fiber IN Bluetooth chip Key part 5V power input Plug in charging 3.7V Battery 2402-2480MHz 24MHz

JEM ACCESSORIES INC. Add: 32 Brunswick Avenue, Edison, New Jersey, United States,08817 Tel：908-222-7501 Fax: 908.222.7504 E-mail：[email protected] FCC Authorization 2022/01/17 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, JEM ACCESSORIES INC. the undersigned, hereby authorize 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, Signature: Printed Name: Eli Dabbah Title: Manager QA-FR-170-B

JEM ACCESSORIES INC. Add: 32 Brunswick Avenue, Edison, New Jersey, United States,08817 Tel：908-222-7501 Fax: 908.222.7504 E-mail：[email protected] FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2022/01/25 Product Similarity Declaration To Whom It May Concern, We, JEM ACCESSORIES INC. hereby declare that we have a product named as Monster BT Transmitter/Receiver with Optical Port and 3.5mm Aux Jack w/Headband, (Model No.: MTH9‐1002, FCC ID: 2AHAS‐MTH91002O) was tested by ATC (Shenzhen), meanwhile, for our marketing purpose, we would like to list a series model No.: MTH9‐1002‐BLK on reports and certificate, all the models are identical schematics, except different color, And 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. Sincerely, Signature: Printed Name: Eli Dabbah Title: Manager

Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF External Photos Page 1 of 5 External Photos Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF External Photos Page 2 of 5 Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF External Photos Page 3 of 5 Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF External Photos Page 4 of 5 Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF External Photos Page 5 of 5

Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-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. Project No.: SZNS211222-66251E-RF Internal Photos Page 1 of 3 Internal photos Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF Internal Photos Page 2 of 3 Antenna Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF Internal Photos Page 3 of 3

Circuit Description The equipment under test is a 2.4GHz transceiver with 79 channels operating at 2402-2480MHz. It is powered by 3.7VDC (1 Li-battery). It connects to the Wifi console by Bluetooth protocol. Channel List 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 Modulation Type: GFSK, π/4-DQPSK, 8DPSK Antenna Type: PCB antenna Antenna Gain：-0.58dBi The functions of main Components are mentioned as below. 1) U1 acts as Bluetooth ic. 2) Y1 acts as crystal 24MHz

K1 Y1 ANT LED2 LED1 USB1 U3 R3 B+ B- C2 R7 U1 C8 C5 C4 DM DP J1 R2 R8 C1 LED3 R1 U5 R15 R9 C14 RU1 C13 C7C6C9 R6 R5 C3 C12 C11 C10 USB3 B+1 GND BT_OSCI BT_OSCO BLUE LDO_IN B+ VOUT BT_AVDD VBAT LDO_IN PP AUX_R VI VDDIO RL RL- BLUE AUX_DET DPDM DM DP PP PO FM $$$6 5VIN $$$6 VI VOUT AUX_DET AUX_L AUX_R AUX_L RL PO B+ Power Supply ONOFF PP/PO 24MHz BLUE RED NC4054 NC NC 0R AC6955F_QSOP24 105 105 105 0R 0R NC NC NC MX3510 0R NC NC PC-PC 105105105105 5K1 5K1 2.7P 30P 104 106 1 2 VCC DMDP GND 1 2 3 4 5 1 USBDM 2 USBDP/ADC12 3 PA1/AUX0R/ADC0 4 PA0/AUX0L 5 PC7/MIC_BIAS 6 MIC 7 VDDIO 8 DACVSS 9 VCOMO 10 DACL 11 DACR 12 FMIP 24 BT_OSCO 23 BT_OSCI 22 VSSIO 21 BT_RF 20 ADC5/PB1 19 BT_AVDD 18 VBAT 17 PB5/LDO_IN 16 ADC8/AUX1R/SD0DATB/PB8 15 AUX2L/SD0CLKB/PB9 14 ADC9/AUX2R/SD0CMDB/PB10 13 SD_PWR/PB11 1 234 3 VDD 4 VM 5 VM 2 G 1 NC 123 123

Note: This report may contain data that are not covered by the A ★ 2LA 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 14: 2021-11-09 Page 1 of 41 FCC- BLE TEST REPORT Applicant Name : JEM ACCESSORIES INC. Address : 32 Brunswick Avenue, Edison, New Jersey, United States 08817 Report Number : SZNS211222-66251E-RF-00B FCC ID: 2AHAS-MTH91002O Test Standard (s) FCC PART 15.247 Sample Description Product Type: Monster BT Transmitter/Receiver with Optical Port and 3.5mm Aux Jack w/Headband Model No.: MTH9-1002 Multiple Model(s) No.: MTH9-1002-BLK（Please refer to DOS for model difference） Trade Mark: Date Received: 2021/12/22 Date of Test: 2022/01/01~2022/01/21 Report Date: 2022/01/25 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Black Ding Robert Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: SZNS211222-66251E-RF-00B Version 14: 2021-11-09 Page 2 of 41 FCC- BLE TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 DUTY CYCLE ................................................................................................................................................................ 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 7 EXTERNAL I/O CABLE .................................................................................................................................................. 7 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 9 TEST EQUIPMENT LIST ......................................................................................................................................... 10 FCC §15.247 (I) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) ................................................... 11 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 12 FCC §15.207 (A) – AC LINE CONDUCTED EMISSIONS .................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 EUT SETUP ................................................................................................................................................................ 13 EMI TEST RECEIVER SETUP ....................................................................................................................................... 13 TEST PROCEDURE ...................................................................................................................................................... 13 TRANSD FACTOR & MARGIN CALCULATION.............................................................................................................. 14 TEST DATA ................................................................................................................................................................ 14 FCC §15.209, §15.20…

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Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF Test Photos Page 1 of 2 Photo of Conducted Emission Measurement Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS211222-66251E-RF Test Photos Page 2 of 2 Photo of Radiated Emission Measurement (Below 1G) Photo of Radiated Emission Measurement (Above 1G)