2A7GB-EP03Wireless Earbuds

Power
on
Take
out
from
the
case/press
and
hold
the
L/R
Multi-function
buttons
for
3s Power
off
Put
into
the
case/press
and
hold
the
L/R
for
5s（in
standby
mode） Play/pauseDouble-click
L/R Volume
-/+Press
and
hold
for
L/R
1.5s NextTriple-click
R Answer/hang
up
a
callDouble-click
L/R Reject
a
callPress
and
hold
for
2s Turn
on
voice
assistantTriple-click
L CHARGING CONTROL 1.Fully
dry
off
the
earbuds
and
the
USB-C
charging


port
before
charging. 2.Connect
the
charging
case
to
a
power
supply
by


using
the
provided
USB-C
charging
cable.

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2A7GB-EP03 EP03 We, Applicant Company Name: Shenzhen Jiechen Technology Co., LTD Address: 502, Floor 5, Building 17, Maker Town, No.4109, Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen 518000, China Phone: +86-13826042556 certify 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. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. We certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2025-01-04 Signature Date Printed Name of Signee / Title: Vincent Huang / Vice-General Manager Company: Shenzhen Jiechen Technology Co., LTD Address: 502, Floor 5, Building 17, Maker Town, No.4109, Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen 518000, China Phone: +86-13826042556 Fax: N/A Email: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2A7GB-EP03 EP03 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Parts Lists • the Tune Up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2025-01-04 Signature Date Printed Name of Signee / Title: Vincent Huang / Vice-General Manager Company: Shenzhen Jiechen Technology Co., LTD Address: 502, Floor 5, Building 17, Maker Town, No.4109, Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen 518000, China Phone: +86-13826042556 Fax: N/A Email: [email protected]

Page 1 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity External Photos of the EUT Fig. 1 Fig. 2 Page 2 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 3 Fig. 4 Page 3 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 5 Fig. 6 Page 4 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 7

Page 1 of 1 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity LABEL AND LOCATION (Size: L 2.0cm x W 1.0cm) Label Location Wireless Earbuds Model: EP03 FCC ID: 2A7GB-EP03

Page 1 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Internal Photos of the EUT Fig. 1 Fig. 2 Page 2 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 3 Fig. 4 Page 3 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 5 Fig. 6 Bluetooth Antenna Page 4 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 7

Page 1 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC RF Exposure Evaluation 1. Product Information FCC ID : 2A7GB-EP03 Product name : Wireless Earbuds Test Model : EP03 Ratings : Charging box: Input: 5V1A Battery: 3.7V300mAh Earphone: Input: 5V100mA/each Battery: 3.7V35mAh Hardware Version : / Software Version V5.4 Bluetooth : 2402MHz~2480MHz Channel Number : 79 channels for Bluetooth V5.4 (DSS) 40 channels for Bluetooth V5.4 (DTS) Channel Spacing : 1MHz for Bluetooth V5.4(DSS) 2MHz for Bluetooth V5.4(DTS) Modulation Type : GFSK , π/4-DQPSK, 8-DPSK for Bluetooth V5.4 (DSS) GFSK for Bluetooth V5.4 (DTS) Bluetooth Version : V5.4 Antenna Type : Chip Antenna Antenna Gain : 1.08dBi Exposure category : General population/uncontrolled environment EUT Type : Production Unit Device Type : Portable Device Page 2 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity 2. Evaluation method and Limit According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.“ [(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: • f (GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to f) in section 4.1 is applied to determine SAR test exclusion. When one of the following test exclusion conditions is satisfied for all combinations of simultaneous transmission configurations, further equipment approval is not required to incorporate transmitter modules in host devices that operate in the mixed mobile and portable host platform exposure conditions. The grantee is responsible for documenting this according to Class I permissive change requirements. Antennas that qualify for standalone SAR test exclusion must apply the estimated standalone SAR to determine simultaneous transmission test exclusion. a) The [∑ of (the highest measured or estimated SAR for each standalone antenna configuration, adjusted for maximum tune-up tolerance) / 1.6 W/kg] + [∑ of MPE ratios] is ≤ 1.0. b)The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operating in portable device exposure conditions are all ≤ 0.04, and the [∑ of MPE ratios] is ≤ 1.0. 3. Refer Evaluation Method ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB publication 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1093: Radiofrequency radiation exposure evaluation: portable devices Page 3 of 4 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity 4. Conducted Power Results <BT> Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 -1.06 39 2441 -0.69 78 2480 -1.86 π/4DQPSK 0 2402 0.98 39 2441 1.31 78 2480 0.23 8DPSK 0 2402 1.43 39 2441 1.66 78 2480 0.6 <BLE 1M> Mode Channel Frequency (MHz)…

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2.4GHz 3216 Chip Antenna: ANT3216R24003KL0 1 / 5 Application: WLAN, 802.11b/g, Bluetooth, etc... Features SMD, high reliability, ultra compact, Omni-directional... Part number ANT 3216 R 2400 3K L0 (1) (2) (3) (4) （5） (1)Size Code 3.2x1.6mm (2) Packing Tape and reel (3) Frequency 2.4GHz (4) Packing Number 3K (5)Code L1 Electrical Specification Working FrequencyRange 2400 ~2484 MHz Peak Gain 1.08dBi (Typ.) Impedance 50 Ohm VSWR 2.5(Max) Polarization Linear Azimuth Beamwidth Omni-directional Operation Temperature(°C) -40~85°C The specification is defined on HEK EVB. Dimension and Terminal Configuration Dimension (mm) No. Terminal Name L 3.20+-0.15 1 Feeding W 1.60+-0.15 2 Ground T 0.60+-0.10 D1 0.50+-0.15 D2 1.30+-0.15 2.4GHz 3216 Chip Antenna: ANT3216R24003KL0 2 / 5 Evaluation Board Reference PCB Dimension Antenna Layout Reference Unit : mm 2.4GHz 3216 Chip Antenna: ANT3216R24003KL0 3 / 5 Electrical Characteristics VSWR Radiation Pattern X Y Z 2.4GHz 3216 Chip Antenna: ANT3216R24003KL0 4 / 5 Taping Specifications Reel and Taping Specification Reel Specification TYPE SIZE A ψB ψC ψD W ψM 3216 7” 3K/Reel 2.0±0.5 13.5±1.0 21±1.0 60±1.0 11.5±2.0 178±2.0 Taping Specification Packaging Type A B W E F G H T ψD P Paper Type 3216 1.90±0.20 3.50±0.20 8.0±0.20 1.75±0.10 3.5±0.05 4.0±0.10 2.0±0.05 0.75±0.10 +0.10 1.50 -0 4.0±0.1 2.4GHz 3216 Chip Antenna: ANT3216R24003KL0 5 / 5 Recommended Reflow Profile Pb free solder Soaking Working Soldering Peak Temp. Time Temp. Time Temp. Time Temp. T1 T2 t1 T3 t2 T4 t3 T5 150°C 180°C 60 to 120sec 230°C more than 30sec 247 to 253°C within 10sec 260°C Max. July. 2022 Ver.H01 Dongguan Hekang Electronics Co., LTD. 1st Floor, Building C, Yuanchuang Power Industrial Park, No.24 Tangjiao Road, Changping Town, Dongguan City, Guangdong Province, China Tel: +86-769-87888306 Fax: +86-769-87888656 e-mail: [email protected]

Page 1 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Appendix B RF Test Data for BT LE (Conducted Measurement) Product Name: Wireless Earbuds Test Model: EP03 Environmental Conditions Temperature: 24.1C Relative Humidity: 53.2% ATM Pressure: 100.0 kPa Test Engineer: Jay Luo Supervised by: Nick Peng Page 2 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity B.1 -6dB Bandwidth Condition Mode Frequency (MHz) Antenna -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT BLE 1M 2402 Ant1 0.659 >=0.5 Pass NVNT BLE 1M 2440 Ant1 0.658 >=0.5 Pass NVNT BLE 1M 2480 Ant1 0.659 >=0.5 Pass NVNT BLE 2M 2402 Ant1 1.15 >=0.5 Pass NVNT BLE 2M 2440 Ant1 1.155 >=0.5 Pass NVNT BLE 2M 2480 Ant1 1.125 >=0.5 Pass Page 3 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs -6dB Bandwidth NVNT BLE 1M 2402MHz Ant1 -6dB Bandwidth NVNT BLE 1M 2440MHz Ant1 Page 4 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -6dB Bandwidth NVNT BLE 1M 2480MHz Ant1 -6dB Bandwidth NVNT BLE 2M 2402MHz Ant1 Page 5 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -6dB Bandwidth NVNT BLE 2M 2440MHz Ant1 -6dB Bandwidth NVNT BLE 2M 2480MHz Ant1 Page 6 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity B.2 Maximum Peak Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Limit (dBm) Verdict NVNT BLE 1M 2402 Ant1 0.25 30 Pass NVNT BLE 1M 2440 Ant1 0.1 30 Pass NVNT BLE 1M 2480 Ant1 -1.07 30 Pass NVNT BLE 2M 2402 Ant1 0.15 30 Pass NVNT BLE 2M 2440 Ant1 -0.1 30 Pass NVNT BLE 2M 2480 Ant1 -1.2 30 Pass Page 7 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs Power NVNT BLE 1M 2402MHz Ant1 Power NVNT BLE 1M 2440MHz Ant1 Page 8 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Power NVNT BLE 1M 2480MHz Ant1 Power NVNT BLE 2M 2402MHz Ant1 Page 9 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Power NVNT BLE 2M 2440MHz Ant1 Power NVNT BLE 2M 2480MHz Ant1 Page 10 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity B.3 Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Antenna Conducted PSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNT BLE 1M 2402 Ant1 -16.41 8 Pass NVNT BLE 1M 2440 Ant1 -16.39 8 Pass NVNT BLE 1M 2480 Ant1 -17.63 8 Pass NVNT BLE 2M 2402 Ant1 -19.41 8 Pass NVNT BLE 2M 2440 Ant1 -19.64 8 Pass NVNT BLE 2M 2480 Ant1 -20.95 8 Pass Page 11 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs PSD NVNT BLE 1M 2402MHz Ant1 PSD NVNT BLE 1M 2440MHz Ant1 Page 12 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity PSD NVNT BLE 1M…

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Page 1 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC TEST REPORT For Shenzhen Jiechen Technology Co. LTD Wireless Earbuds Test Model: EP03 Prepared for : Shenzhen Jiechen Technology Co. LTD Address : 502,Floor 5,Building 17,Maker Town,No.4109,Liuxian Avenue,Pingshan Community,Taoyuan Street, Nanshan District, Shenzhen China Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : December 13, 2024 Number of tested samples : 2 Sample No. : A241209078-1, A241209078-2 Serial number : Prototype Date of Test : December 13, 2024 ~ December 20, 2024 Date of Report : December 21, 2024 Page 2 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC TEST REPORT FCC CFR 47 PART 15 C(15.247) Report Reference No. ................. : LCSA12134017EB Date of Issue .................................. : December 21, 2024 Testing Laboratory Name ............ : Shenzhen LCS Compliance Testing Laboratory Ltd. Address .......................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Testing Location/ Procedure .......... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name ......................... : Shenzhen Jiechen Technology Co. LTD Address .......................................... : 502,Floor 5,Building 17,Maker Town,No.4109,Liuxian Avenue,Pingshan Community,Taoyuan Street, Nanshan District, Shenzhen China Test Specification Standard ......................................... : FCC CFR 47 PART 15 C(15.247) Test Report Form No.................... : TRF-4-E-145 A/0 TRF Originator ................................ : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF ..................................... : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. EUT Description. .......................... : Wireless Earbuds Trade Mark ..................................... : N/A Test Model ...................................... : EP03 Ratings ........................................... : Charging box: Input: 5V1A Battery: 3.7V300mAh Earphone: Input: 5V100mA/each Battery: 3.7V35mAh Result ............................................ : Positive Compiled by: Supervised by: Approved by: Nadia Zhou/ Administrator Cary Luo/ Technique principal Gavin Liang/ Manager Page 3 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC -- TEST REPORT Test Model............................... : EP03 EUT......................................... : Wireless Earbuds Applicant............................... : Shenzhen Jiechen Technology Co. LTD Address.................................. : 502,Floor 5,Building 17,Maker Town,No.4109,Liuxian Avenue,Pingshan Community,Taoyuan Street, Nanshan District, Shenzhen China Telephone............................... : / Fax.......................................... : / Manufacturer........................ : Shenzhen Jiechen Technology Co. LTD Address................................... : 502,Floor 5,Building 17,Maker Town,No.4109,Liuxian Avenue,Pingshan Community,Taoyuan Street, Nanshan District, Shenzhen China Telephone............................... : / Fax.......................................... : / Factory................................... : JIALAN(DONGGUAN)ELECTRONICS&TECHNOLOGY CO.,LTD Address................................... : 1F, Building 3, No.8 Shahu 2nd Road, Tang Xia Town, Dongguan City, Guangdong Province, China Telephone............................... : / Fax.......................................... : / Test Result Positive The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Test Report No. : LCSA12134017EB December 21, 2024 Date of issue Page 4 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Revision History Report Version Issue Date Revision Content Revised By 000 December 21, 2024 Initial Issue --- Page 5 of 34 FCC ID: 2A7GB-EP03 Report No.: LCSA12134017EB Shenzhen LCS Compliance Testing Laboratory Ltd. A…

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Page 1 of 2 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Setup Photos of the EUT Test Setup Photo(s) of Radiated Emissions Measurement Fig. 1 Fig. 2 Page 2 of 2 FCC ID: 2A7GB-EP03 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 3 Test Setup Photo(s) of Conducted Emissions Measurement Fig. 4