2BFYM-LHB121WIRELESS HEADPHONES

JINGSHAN JINGYANG ELECTRONICS CO., LTD ADD: Group 1, Sanyang Village, Sanyang Town, Jingshan City, Jingmen City, Hubei Province, China Tel: +86-15212750567 Email: [email protected] Date: 2024-6-14 To: FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 We, JINGSHAN JINGYANG ELECTRONICS CO., LTD hereby declare that： Product Name: WIRELESS HEADPHONES Model No.: PAHB-1004-BK, LHB121, PAHB-1004-PK, PAHB-1004-WH FCC ID: 2BFYM-LHB121 For BT Mode: BLE 1M/2M are disable by software For Below are activated: Bluetooth BDR(GFSK), EDR(π/4‐DQPSK), EDR(8DPSK) Except for the manufacturer, the end user does not have any capability to modify/change the RF parameters. We acknowledge that it is the manufacturer’s responsibility to provide the radio configurations to ensure compliance with Commission’s rules. Sincerely Yours, Signature: Printed Name: Ella Fang Title: SALES

JINGSHAN JINGYANG ELECTRONICS CO., LTD ADD: Group 1, Sanyang Village, Sanyang Town, Jingshan City, Jingmen City, Hubei Province, China Tel: +86-15212750567 Email: [email protected] CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 06/14/2024 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2BFYM-LHB121 JINGSHAN JINGYANG ELECTRONICS CO., LTD 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, Signature Contact Person: Ella Fang Title: SALES

JINGSHAN JINGYANG ELECTRONICS CO., LTD ADD: Group 1, Sanyang Village, Sanyang Town, Jingshan City, Jingmen City, Hubei Province, China Tel: +86-15212750567 Email: [email protected] CFR 47 §2.911 (d)(5)(ii) Attestation Letter QA-FR-1007-A RC 02-08-2023 Attestation Letter Date: 06/14/2024 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2BFYM-LHB121 JINGSHAN JINGYANG ELECTRONICS CO., LTD 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, Signature Contact Person: Ella Fang Title: SALES

1234 A B C D 4321 D C B A AB5656C2 Battery LEDs PCB Antenna 26MHz Crystal Control buttons Speaker Microphone matching circuit LHB121 3.7V DAC 2402~2480MHz

JINGSHAN JINGYANG ELECTRONICS CO., LTD ADD: Group 1, Sanyang Village, Sanyang Town, Jingshan City, Jingmen City, Hubei Province, China Tel: +86-15212750567 Email: [email protected] FCC Authorization Date: 2024-6-14 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, JINGSHAN JINGYANG ELECTRONICS CO., LTD, the undersigned, hereby authorize Bay Area Compliance Laboratories Corp. (Shenzhen) 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 Bay Area Compliance Laboratories Corp. (Shenzhen) 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: Ella Fang Title: SALES

JINGSHAN JINGYANG ELECTRONICS CO., LTD ADD: Group 1, Sanyang Village, Sanyang Town, Jingshan City, Jingmen City, Hubei Province, China Tel: +86-15212750567 Email: [email protected] Product Similarity Declaration Date: 2024-6-14 To: FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, JINGSHAN JINGYANG ELECTRONICS CO., LTD, hereby declare that we have a product named as WIRELESS HEADPHONES (model: PAHB-1004-WH, FCC ID: 2BFYM-LHB121) was tested by Bay Area Compliance Laboratories Corp. (Shenzhen), Meanwhile, for our marketing purpose, we would like to list some series models (LHB121, PAHB-1004-PK, PAHB-1004-BK) on reports and certificate, all the models are identical in electrically. The difference between PAHB-1004-BK, PAHB-1004-PK and PAHB-1004-WH is the color (See EUT external photos for details). And the LHB121 is the combination with PAHB-1004-BK + PAHB-1004-PK + PAHB-1004-WH. Remark LHB121: 3pcs (LHB121=(Model: PAHB-1004-BK) + (Model: PAHB-1004-PK) + (Model: PAHB-1004-WH), model sold in combination) 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: Ella Fang Title: SALES

Bay Area Compliance Laboratories Corp. (Shenzhen) No.:2401T21463E-RF Page1 of 4 EUT EXTERNAL PHOTOGRAPHS PAHB-1004-BK PAHB-1004-WH PAHB-1004-PK Bay Area Compliance Laboratories Corp. (Shenzhen) No.:2401T21463E-RF Page2 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) No.:2401T21463E-RF Page3 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) No.:2401T21463E-RF Page4 of 4

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2401T21463E-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) No.:2401T21463E-RF Page 1 of 3 EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) No.:2401T21463E-RF Page 2 of 3 Bay Area Compliance Laboratories Corp. (Shenzhen) No.:2401T21463E-RF Page 3 of 3 Antenna

Circuit Description Battery (DC 3.7V) provides energy for the Bluetooth chip (AB5656C2); Crystal oscillator (26MHz) provides the clock signal for the Bluetooth chip. Bluetooth signals get through a matching circuit, and then transmitted to the space through the antenna (2402-2480MHz). When the product is connected, the product can in two-way communication with other Bluetooth Devices, and then the device’s Bluetooth module sends Bluetooth signals into space, the product receives the Bluetooth signal through an antenna, transmission to the Bluetooth chip via matching circuit. Modulation Technique: GFSK, π/4-DQPSK, 8DPSK

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2401T21463E-RF-00A TR-EM-RF001 Page 53 of 56 Version 1.0 (2023/10/07) RF EXPOSURE EVALUATION Applicable Standard According to FCC §2.1093 and §1.1307(b) (1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB 447498 D01 General RF Exposure Guidance The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] • [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where 1. f(GHz) is the RF channel transmit frequency in GHz. 2. Power and distance are rounded to the nearest mW and mm before calculation. 3. The result is rounded to one decimal place for comparison. 4. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test Exclusion. Measurement Result For worst case: Mode Frequency (MHz) Max tune-up conducted power # (dBm) Max tune-up conducted power # (mW) Distance (mm) Calculated value Threshold (1-g SAR) SAR Test Exclusion BT 2402-2480 8.00 6.31 5 2.0 3 Yes Result: Compliant

1234 A B C D 4 321 D C B A Main MCU D2 BLUE LEDB VBAT KEY LED 1 J2 B+ DAC 1 J9 DP 1 J10 DM DP DM MIC C5 NC Y126M C4 nc BTOSCIBTOSCO 1 E1 D A C L D A C R M I C BTOSCO BTOSCI 3V3 GND SW L4 nc VDDBT VBAT BT_RF L1 NC C8 NC L3 NC RF_ANT P B 1 C4 105 MIC R4 NC + M1 DACVDD M+ 1 J5 CON1 1 J1 CON1 DACL DACR C2 NC C1 NC PB1 1 K1 C3 105 AGND LEDB LEDR 5V POWER 1 J2 5V 1 J3 B- RFGND 0 AGND 1 VUSB 2 VDDIO 3 VBAT 4 LX 5 D G N D 6 V D D B T 7 P W R K E Y 8 B T A N T 9 V D D B T 1 0 OSI 11 OSO 12 LED1 13 LED2 14 PA7 15 M I C 1 6 D A C L 1 7 D A C R 1 8 V D D D A C 1 9 N C 2 0 U1 AB5656C2 5V V D D B T V D D B T D1 RED LEDR C3 104 1 1 2 2 3 3 U3 312B R1 100R VBAT GND 1 K2 1 K2 R4 12K R3 47K

ITEMModel NameMaximum GainPolarizationImpedanceManufactureAddress Antenna S p ecificatio n ANT SPEC 2.4G ANT Antenna Photo -0.58dBi Azimuth BeamPattern Omni-directional Horizontal and Vertical ZHUHAI JIELI TECHNOLOGY CO.,LTD 50 Ohm 333 Kexing Rd,Nanping Town,Xiangzhou Dist,Zhuhai City,Guangdong Province,China Frequency /MHz Gain/ dBi 2400 -1.05 2410 -0.99 2420 -0.82 2430 -0.79 2440 -0.65 2450 -0.58 2460 -0.66 2470 -0.82 2480 -0.94 2490 -0.97 2500 -1.07 3D Radiation Pattern for 2450MHz

Note: The information marked # is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included. 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. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP or any agency of the U.S. Government. This report may contain data that are not covered by the NVLAP accreditation and are marked with an asterisk “▼”. 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: +86-755-33320018Fax: +86-755-33320008www.baclcorp.com.cn TR-EM-RF001 Page 1 of 56 Version 1.0 (2023/10/07) TEST REPORT Applicant Name: JINGSHAN JINGYANG ELECTRONICS CO., LTD Address: Group 1, Sanyang Village, Sanyang Town, Jingshan City, Jingmen City, Hubei Province, China Report Number: 2401T21463E-RF-00A FCC ID: 2BFYM-LHB121 Test Standard (s) FCC PART 15.247 Sample Description Product Type: WIRELESS HEADPHONES Model No.: PAHB-1004-WH Multiple Model(s) No.: LHB121, PAHB-1004-PK, PAHB-1004-BK Trade Mark: Prime Audio Date Received: 2024-05-22 Issue Date: 2024-06-11 Test Result: Pass ▲ ▲In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Jojo Guo Michelle Zeng RF Engineer RF Supervisor Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2401T21463E-RF-00A TR-EM-RF001 Page 2 of 56 Version 1.0 (2023/10/07) TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 3 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 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 REQUIREMENTS AND TEST PROCEDURES ..................................................................................................... 10 AC LINE CONDUCTED EMISSIONS .............................................................................................................................. 10 RADIATED EMISSIONS ................................................................................................................................................ 12 CHANNEL SEPARATION TEST ..................................................................................................................................... 15 20 DB EMISSION BANDWIDTH .................................................................................................................................... 16 QUANTITY OF HOPPING CHANNEL TEST .................................................................................................................... 18 TIME OF OCCUPANCY (DWELL TIME) ........................................................................................................................ 19 PEAK OUTPUT POWER MEASUREMENT ...................................................................................................................... 20 BAND EDGES .............................................................................................................................................................. 21 TEST DATA AND RESULTS .................................................................................................................................... 22 RADIATED EMISSIONS ................................................................................................................................................ 22 20 DB EMISSION BANDWIDTH .................................................................................................................................... 36 CHANNEL SEPARATION .............................................................................................................................................. 39 NUMBER OF HOPPING FREQUENCY ............................................................................................................................ 42 TIME OF OCCUPANCY (DWELL TIME) ......................................................................................................................... 44 MAXIMUM CONDUCTED OUTPUT POWER ..........................................................…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.:2401T21463E-RF-00A Page1 of 2 TEST SETUP PHOTOGRAPHS Radiated Emissions View (Below 30MHz) Radiated Emissions View (Below 1 GHz) Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.:2401T21463E-RF-00A Page2 of 2 Radiated Emissions View (1-18 GHz) Radiated Emissions View (18-25 GHz)