2AO47-KS-K013Bluetooth earbuds

FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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, 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, —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. FCC RF Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement. The device ca n be used in portable exposure condition without restriction

Shenzhen Kingstar Industrial Co., Ltd. Room 211，Minle technology building，Minle industrial park，Longhua district，shenzhen， Guangdong Date: 2020-01-07 FCC ID: 2AO47-KS-K013 Dear Sir/Madam, We, Shenzhen Kingstar Industrial Co., Ltd. Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Bluetooth earbuds Model no.: KS-K013,K013 Sincerely, (Signed) Name / Title: Gang Liu / Manager Company: Shenzhen Kingstar Industrial Co.,Ltd. Address: Room 211，Minle technology building，Minle industrial park，Longhua district，shenzhen，G uangdong Phone: +86-13632717270 E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 < 2020-01-07> 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 requests confidentiality for the following products: FCC ID Model name 2AO47-KS-K013 KS-K013,K013 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, (Signed) Name / Title: Gang Liu / Manager Company: Shenzhen Kingstar Industrial Co.,Ltd. Address: Room 211，Minle technology building，Minle industrial park， Longhua district，shenzhen，Guangdong Phone: +86-13632717270 E-Mail: [email protected]

Shenzhen Kingstar Industrial Co., Ltd. Room 211，Minle technology building，Minle industrial park，Longhua district，shenzhen，Guangdong Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 1/07/2020 To whom it may concern: We, Shenzhen Kingstar Industrial Co., Ltd. the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AO47-KS-K013 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, (Signed) Name / Title: Gang Liu / Manager Company: Shenzhen Kingstar Industrial Co.,Ltd. Address: Room 211，Minle technology building，Minle industrial park，Longhua district， shenzhen，Guangdong Phone: +86-13632717270 E-Mail: [email protected]

GTS201912000275F01 Product Name: Bluetooth earbuds Test Model No.: KS-K013 EUT Constructional Details External Photo GTS201912000275F01 GTS201912000275F01 GTS201912000275F01 GTS201912000275F01

Label And Location Label And Location FCC ID: 2AO47-KS-K013

GTS201912000275F01 Product Name: Bluetooth earbuds Test Model No.: KS-K013 EUT Constructional Details Internal Photo EUT Constructional Details GTS201912000275F01

This report shall not be reproduced except in full, without the written approval of Global United Technology Services Co., Ltd. Page 1 of 2 FCC RF Exposure Evaluation FCC ID: 2AO47-KS-K013 Exposure category: General population/uncontrolled environment EUT Type: Production Unit Device Type: Portable Device Refer Standard: KDB 447498 D01 General RF Exposure Guidance v06 FCC Part 2 §2.1093 Evaluation method 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.23 “ [(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. Conducted Power Results Mode Channel Frequency(MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 3.120 39 2441 5.075 78 2480 3.495 π/4-DQPSK 0 2402 2.073 39 2441 3.769 78 2480 2.170 This report shall not be reproduced except in full, without the written approval of Global United Technology Services Co., Ltd. Page 2 of 2 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 3.0 5.0 3.0 Tolerance ±(dB) 1.0 1.0 1.0 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 2.0 3.0 2.0 Tolerance ±(dB) 1.0 1.0 1.0 Evaluation Results Band/Mode f (GHz) Antenna Distance (mm) RF output power SAR Test Exclusion Threshold SAR Test Exclusion dBm mW GFSK 2.450 5 6.0 3.9811 1.2462 < 3.0 Yes π/4-DQPSK 2.450 5 4.0 2.5119 0.7863 < 3.0 Yes Remark: 1. Output power including tune up tolerance; 2. 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. Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06. ----------------THE END OF REPORT---------------

Global United Technology Services Co., Ltd. Report No.: GTS201912000275F01 Authorized Signature: Robinson Lo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 45 1 Cover Page TEST Report Applicant: Shenzhen Kingstar Industrial Co., Ltd. Address of Applicant: Room 211，Minle technology building，Minle industrial park， Longhua district，shenzhen，China Manufacturer : Shenzhen Kingstar Industrial Co., Ltd. Address of Manufacturer : Room 211，Minle technology building，Minle industrial park， Longhua district，shenzhen，China Equipment Under Test (EUT) Product Name: Bluetooth earbuds Model No.: KS-K013,K013 Trade Mark: N/A FCC ID: 2AO47-KS-K013 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: Dec.05,2019 Date of Test: Dec.05,2019- Dec.27,2019 Date of report issued: Dec.27,2019 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS201912000275F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 45 2 Version Version No. Date Description 00 Dec.27，2019 Original Prepared By: Date: Dec 27, 2019 Project Engineer Check By: Date: Dec 27, 2019 Reviewer Report No.: GTS201912000275F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 45 3 Contents Page 1 COVER PAGE ...........................................................................................................................................1 2 VERSION ...................................................................................................................................................2 3 CONTENTS ...............................................................................................................................................3 4 TEST SUMMARY ......................................................................................................................................4 5 GENERAL INFORMATION .......................................................................................................................5 5.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 5.2 TEST MODE .........................................................................................................................................7 5.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................7 5.4 DEVIATION FROM STANDARDS ..............................................................................................................7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................7 5.6 TEST FACILITY.....................................................................................................................................7 5.7 TEST LOCATION...................................................................................................................................7 6 TEST INSTRUMENTS LIST ......................................................................................................................8 7 TEST RESULTS AND MEASUREMENT DATA .....................................................................................10 7.1 ANTENNA REQUIREMENT ....................................................................................................................10 7.2 CONDUCTED EMISSIONS ....................................................................................................................11 7.3 CONDUCTED PEAK OUTPUT POWER ...................................................................................................14 7.4 20DB EMISSION BANDWIDTH ..............................................................................................................15 7.5 FREQUENCIES SEPARATION ...............................................................................................................18 7.6 HOPPING CHANNEL NUMBER .............................................................................................................20 7.7 DWELL TIME ......................................................................................................................................22 7.8 PSEUDORANDOM FREQUENCY HOPPING SEQUENCE ...........................................................................26 7.9 BAND EDGE.......................................................................................................................................27 7.9.1 Conducted Emission Method ......................................................................................................27 7.9.2 Radiated Emission Method .........................................................................................................30 7.10 SPURIOUS EMISSION .........................................................................................................................33 7.10.1 Conducted Emission Method ..................................................................................................33 7.10.2 Radiated Emission Method .....................................................................................................37 8 TEST SETUP PHOTO .......................................…

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GTS201912000275F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 1 of 2 Product Name: Bluetooth earbuds Test Model No.: KS-K013 Test Setup Photo Radiated Emission GTS201912000275F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 2 Conducted Emission ------End------