2BL7I-K06Mini speaker

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: UA INTERNATIONAL INC. FRN:0033510736 Contact Name:Jessica Zhong Address:5030 Boardwalk Dr Suite 818 Colorado Springs, COLORADO 80919, USA Telephone No:001-719-6787182 Email:[email protected] Applicant: Company name: Shenzhen Kaichengxin Electronics Technology Co., Ltd. Product Description: Mini speaker Grantee code:2BL7I FCC ID:2BL7I-K06 FRN：0036274835 Contact Name:Lifeng Luo Address:1502C, Building C6, Hengfeng Industrial Zone, No.739, Road Zhoushi, Hezhou, Hangcheng Town, Bao ’ an District, Shenzhen Telephone No:13316435797 Email:[email protected] [Shenzhen Kaichengxin Electronics Technology Co., Ltd.] certifies that, as of the date of this filing of the application with the TCB, [UA INTERNATIONAL INC.] is our designated US agent for service of process for the above referenced FCC ID. [Shenzhen Kaichengxin Electronics Technology Co., Ltd.] accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [UA INTERNATIONAL INC.] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. 1/1 Date: 2024/12/03 Applicant’s Name:Lifeng LuoUS Agent’s Name: Jessica Zhong Title:ManagerTitle: General Manager SignatureSignature

Attestation Statement. Old Code:C5266091 24New Code:00015544 Ed.3 Change reason:FRN is added to the Applicant information section. 1/1 TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Shenzhen Kaichengxin Electronics Technology Co., Ltd. Grantee code:2BL7I FCC ID:2BL7I-K06 FRN:0036274835 Contact Name: Lifeng Luo Address:1502C, Building C6, Hengfeng Industrial Zone, No.739, Road Zhoushi, Hezhou, Hangcheng Town, Bao ’ an District, Shenzhen Telephone No:13316435797 Fax No:N/A Email:[email protected] i.[Shenzhen Kaichengxin Electronics Technology Co., Ltd.] (“the applicant”) 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. The applicant must sign this certification. ii. [Shenzhen Kaichengxin Electronics Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [ is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [Shenzhen Kaichengxin Electronics Technology Co., Ltd.] (“the applicant”) 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 . Date: 2024/11/20 Applicant’s Name:Lifeng Luo Title:Manager Signature 1 The Commission’sCovered Listis published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment.https://www.fcc.gov/supplychain/coveredlist

Shenzhen Kaichengxin Electronics Technology Co., Ltd. Product Similarity Declaration Product name:Mini speaker Model name: K06, K05, K05A, K06A, K06B, K06C, K08, K08A, K08B, K09, K09A, K09B, K010, K011, K12 FCC ID:2BL7I-K06 We ( Shenzhen Kaichengxin Electronics Technology Co., Ltd. ) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model number and rubber shell. Please see the picture below for details. Rubber shell 1(Applicable to all models) Shenzhen Kaichengxin Electronics Technology Co., Ltd. Rubber shell 2(Applicable to all models) Signature: Name:Lifeng Luo Title: Manager Place, date:Shenzhen , 2024.11.20

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen Kaichengxin Electronics Technology Co., Ltd. Company:Shenzhen Kaichengxin Electronics Technology Co., Ltd. Address:1502C, Building C6, Hengfeng Industrial Zone, No.739, Road Zhoushi, Hezhou, Hangcheng Town, Bao’an District, Shenzhen Product Name: Mini speaker Model Number: K06, K05, K05A, K06A, K06B, K06C, K08, K08A, K08B, K09, K09A, K09B, K010, K011, K12 FCC Identifier: 2BL7I-K06 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name:Lifeng LuoDate: 2024-11-20 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 Shenzhen Kaichengxin Electronics Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024-11-20 Subject: Request for Confidentiality FCC ID: 2BL7I-K06 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/LocationNoNo Attestation StatementNoNo External PhotosNo ☒ Block Diagram ☒☐ Schematics ☒☐ Test ReportNoNo Test Setup PhotosNo ☒ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐☐ RF Exposure InfoNoNo Operational Description ☒☐ Cover Letter(s)NoNo SDR Software / Security Info ☐ No NOTE 1: Long‐Term Confidentiality may be permitted under special conditions (SeeII. LONG‐TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short‐Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ___180___ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential C5266091_X10_Ed.2 1/1 documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Lifeng Luo Title: Manager

Label: Mini speaker Model ： K06 FCC ID: 2BL7I-K06

FCC ID: 2BL7I-K06 RF Exposure Evaluation According toKDB 447498 D01 General RF Exposure Guidance v06and part 2.1093 ， Unless specifically required by thepublished 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 correspondingSAR Test Exclusion Thresholdcondition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances≤50 mm, the 1-g and 10-g SAR test exclusion thresholds aredetermined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]ꞏ[√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 thenearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, So a SAR test is not required Mode Freque ncy (MHz) Max Power (dBm) Target power / tolerance (dBm) Max tune up power tolerance (dBm) Max Power (mW) Min. Distanc e (mm) Calc. threshol ds limit GFSK 2402 -4.79 -5 ± 1 -40.3985.000.1233.0 2441 -4.67 -5 ± 1 -40.3985.000.1243.0 2480 -4.69 -5 ± 1 -40.3985.000.1253.0 Π /4-DQ PSK 2402 -3.81 -4 ± 1 -30.5015.000.1553.0 2441 -3.72 -4 ± 1 -30.5015.000.1573.0 2480 -3.74 -4 ± 1 -30.5015.000.1583.0 8DPSK 2402 -3.41 -4 ± 1 -30.5015.000.1553.0 2441 -3.42 -4 ± 1 -30.5015.000.1573.0 2480 -3.53 -4 ± 1 -30.5015.000.1583.0

Page 1 of 37 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn FCC TEST REPORT FCC ID: 2BL7I-K06 Product:Mini speaker Model Name: K06, K05, K05A, K06A, K06B, K06C, K08, K08A, K08B, K09, K09A, K09B, K010, K011, K12 Brand:EarFun Report No.:NCT24045681XE1-1 Prepared for Shenzhen Kaichengxin Electronics Technology Co., Ltd. 1502C, Building C6, Hengfeng Industrial Zone, No.739, Road Zhoushi, Hezhou, Hangcheng Town, Bao’an District, Shenzhen Prepared by Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, People’s Republic of China TEL: 400-8868-419 FAX: 86-755-27790922 Report No.: NCT24045681XE1-1 Page 2 of 37 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn 1 TEST RESULT CERTIFICATION Applicant’s name: Shenzhen Kaichengxin Electronics TechnologyCo., Ltd. Address: 1502C, Building C6, Hengfeng Industrial Zone, No.739, Road Zhoushi, Hezhou, Hangcheng Town, Bao’an District, Shenzhen Manufacture's name : Shenzhen Kaichengxin Electronics Technology Co., Ltd. Address : 1502C, Building C6, Hengfeng Industrial Zone, No.739, Road Zhoushi, Hezhou, Hangcheng Town, Bao’an District, Shenzhen Product name : Mini speaker Model name :K06 Additional model : K05, K05A, K06A, K06B, K06C, K08, K08A, K08B, K09, K09A, K09B, K010, K011, K12 Standards : FCC CFR47 Part 15 Section 15.247 Test procedure : ANSI C63.10:2013 Test Date: Nov. 08, 2024 to Nov. 22, 2024 Date o fIssue: Nov. 23, 2024 Test Result :Pass This device described above has been tested by NCT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of NCT, this document may be altered or revised by NCT, personal only, and shall be noted in the revision of the document. Test Engineer: Keven Wu / Engineer Technical Manager: Henry Wang / Manager Report No.: NCT24045681XE1-1 Page 3 of 37 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn Contents Page 1 TEST RESULT CERTIFICATION...............................................................................................................................2 2 TEST SUMMARY.......................................................................................................................................................... 5 3 TEST FACILITY............................................................................................................................................................. 6 4 GENERAL INFORMATION..........................................................................................................................................7 4.1 G ENERALDESCRIPTION OFE.U.T.....................................................................................................................7 4.2 C HANNELLIST..................................................................................................................................................... 8 4.3 T ESTSETUPCONFIGURATION............................................................................................................................9 4.4 T EST CONFIGURATION.........................................................................................................................................9 5 EQUIPMENT DURING TEST.................................................................................................................................... 10 5.1 E QUIPMENTSLIST............................................................................................................................................. 10 5.2 M EASUREMENTUNCERTAINTY......................................................................................................................... 12 5.3 D ESCRIPTION OFSUPPORTUNITS...................................................................................................................12 6 CONDUCTED EMISSION.......................................................................................................................................... 13 6.1 E.U.T. O PERATION............................................................................................................................................13 6.2 EUT S ETUP....................................................................................................................................................... 13 6.3 T ESTSET-UP (BLOCKDIAGRAM OFCONFIGURATION)................................................................................. 14 6.4 M EASUREMENTPROCEDURE:...........................................................................................................................14 6.5 C ONDUCTEDEMISSIONLIMIT........................................................................................................................... 14 6.6 M EASUREMENTDESCRIPTION.......................................................................................................................... 14 6.7 C ONDUCTEDEMISSIONTESTRESULT.............................................................................................................14 7 RADIATED SPURIOUS EMISSIONS...................................................................................................................... 17 7.1 EUT O PERATION...............................................................................................................................................17 7.2 T ESTSETUP...................................................................................................................................................... 18 7.3 S PECTRUMANALYZERSETUP.......................................................................................................................... 19 7.4 T ESTPROCEDURE.......................................................…

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Antenna S pecification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26-0.76-0.58-5.25-2.46-1.86 MAX. Gain -0.58dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Antenna Photo & Length (mm) Shenzhen Kaichengxin Electronics Technology Co., Ltd. Address:1502C, Building C6, Hengfeng Industrial Zone, No.739, Road Zhoushi, Hezhou, Hangcheng Town, Bao’an District, Shenzhen Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain (dB) Frequency (MHz) MaxMinAvg 2400-1.26174-30.0801-7.18716 2450-0.765802-36.5604-7.48023 2500-0.585582-22.0315-6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain (dB) Frequency (MHz) MaxMinAvg 2400-5.2537-22.1424-12.4294 2450-2.4652-24.5837-10.4702 2500-1.86120-29.5214-9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

TableofContents 1. Duty Cycle..................................................................................................................................................................... 2 2.‐20dB Bandwidth..........................................................................................................................................................7 3. 99% Occupied Bandwidth.......................................................................................................................................... 12 4. Peak Output Power.....................................................................................................................................................17 5. Spurious Emissions..................................................................................................................................................... 18 6. Bandedge....................................................................................................................................................................27 7. Carrier Frequencies Separation (Hopping).................................................................................................................40 8. Number of Hopping Channel (Hopping).................................................................................................................... 45 9. Dwell Time (Hopping).................................................................................................................................................47 Page 2 of 55 FCC ID: 2BL7I-K06 FCC_BT (Part15.247) Test Data 1. Duty Cycle ConditionAntennaRateFrequency (MHz)Dutycycle(%)Duty_factor NVNTANT11-DH12402.0030.165.21 NVNTANT11-DH12441.0030.655.14 NVNTANT11-DH12480.0030.165.21 NVNTANT12-DH12402.0030.655.14 NVNTANT12-DH12441.0030.655.14 NVNTANT12-DH12480.0030.655.14 NVNTANT13-DH12402.0031.754.98 NVNTANT13-DH12441.0031.754.98 NVNTANT13-DH12480.0031.754.98 Duty_Cycle_NVNT_ANT1_1-DH1_2402 Page 3 of 55 Duty_Cycle_NVNT_ANT1_1-DH1_2441 Duty_Cycle_NVNT_ANT1_1-DH1_2480 Page 4 of 55 Duty_Cycle_NVNT_ANT1_2-DH1_2402 Duty_Cycle_NVNT_ANT1_2-DH1_2441 Page 5 of 55 Duty_Cycle_NVNT_ANT1_2-DH1_2480 Duty_Cycle_NVNT_ANT1_3-DH1_2402 Page 6 of 55 Duty_Cycle_NVNT_ANT1_3-DH1_2441 Duty_Cycle_NVNT_ANT1_3-DH1_2480 Page 7 of 55 2. -20dB Bandwidth ConditionAntennaModulationFrequency(MHz)-20dB BW(MHz)if larger than CFS NVNTANT11-DH12402.000.880No NVNTANT11-DH12441.000.880No NVNTANT11-DH12480.000.879No NVNTANT12-DH12402.001.260Yes NVNTANT12-DH12441.001.253Yes NVNTANT12-DH12480.001.258Yes NVNTANT13-DH12402.001.222Yes NVNTANT13-DH12441.001.221Yes NVNTANT13-DH12480.001.223Yes -20dB_Bandwidth_NVNT_ANT1_1-DH1_2402_00 -20dB_Bandwidth_NVNT_ANT1_1-DH1_2441_00 Page 8 of 55 -20dB_Bandwidth_NVNT_ANT1_1-DH1_2480_00 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2402_00 Page 9 of 55 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2441_00 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2480_00 Page 10 of 55 -20dB_Bandwidth_NVNT_ANT1_3-DH1_2402_00 -20dB_Bandwidth_NVNT_ANT1_3-DH1_2441_00 Page 11 of 55 -20dB_Bandwidth_NVNT_ANT1_3-DH1_2480_00 Page 12 of 55 3. 99% Occupied Bandwidth ConditionAntennaModulationFrequency(MHz)99%%BW(MHz) NVNTANT11-DH12402.000.818 NVNTANT11-DH12441.000.821 NVNTANT11-DH12480.000.820 NVNTANT12-DH12402.001.167 NVNTANT12-DH12441.001.165 NVNTANT12-DH12480.001.166 NVNTANT13-DH12402.001.158 NVNTANT13-DH12441.001.156 NVNTANT13-DH12480.001.156 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2402_00 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2441_00 Page 13 of 55 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2480_00 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2402_00 Page 14 of 55 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2441_00 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2480_00 Page 15 of 55 99%_Occupied_Bandwidth_NVNT_ANT1_3-DH1_2402_00 99%_Occupied_Bandwidth_NVNT_ANT1_3-DH1_2441_00 Page 16 of 55 99%_Occupied_Bandwidth_NVNT_ANT1_3-DH1_2480_00 Page 17 of 55 4. Peak Output Power Condition Antenna Modulation Frequency (MHz) Max. Conducted Power(dBm) Max. Conducted Power(mW) Limit(mW) Result NVNTANT11-DH12402.00-4.790.331000Pass NVNTANT11-DH12441.00-4.670.341000Pass NVNTANT11-DH12480.00-4.690.341000Pass NVNTANT12-DH12402.00-3.810.42125Pass NVNTANT12-DH12441.00-3.720.42125Pass NVNTANT12-DH12480.00-3.740.42125Pass NVNTANT13-DH12402.00-3.410.46125Pass NVNTANT13-DH12441.00-3.420.45125Pass NVNTANT13-DH12480.00-3.530.44125Pass Page 18 of 55 5. Spurious Emissions ConditionAntennaModulationTX ModeSpurious MAX.Value(dBm)LimitResult NVNTANT11-DH12402.00-46.470-24.847Pass NVNTANT11-DH12441.00-47.283-24.739Pass NVNTANT11-DH12480.00-47.628-24.794Pass NVNTANT12-DH12402.00-35.512-24.856Pass NVNTANT12-DH12441.00-28.106-24.612Pass NVNTANT12-DH12480.00-26.162-24.665Pass NVNTANT13-DH12402.00-46.441-25.129Pass NVNTANT13-DH12441.00-47.319-25.027Pass NVNTANT13-DH12480.00-40.901-25.089Pass 1_Reference_Level_NVNT_ANT1_1-DH1_2402_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2402_00 Page 19 of 55 1_Reference_Level_NVNT_ANT1_1-DH1_2441_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2441_00 Page 20 of 55 1_Reference_Level_NVNT_ANT1_1-DH1_2480_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2480_00 Page 21 of 55 1_Reference_Level_NVNT_ANT1_2-DH1_2402_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2402_00 Page 22 of 55 1_Reference_Level_NVNT_ANT1_2-DH1_2441_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2441_00 Page 23 of 55 1_Reference_Level_NVNT_ANT1_2-DH1_2480_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2480_00 Page 24 of 55 1_Reference_Level_NVNT_ANT1_3-DH1_2402_00 2_Spurious_Emissions_NVNT_ANT1_3-DH1_2402_00 Page 25 of 55 1_Reference_Level_NVNT_ANT1_3-DH1_2441_00 2_Spurious_Emissions_NVNT_ANT1_3-DH1_2441_00 Page 26 of 55 1_Reference_Level_NVNT_ANT1_3-DH1_2480_00 2_Spurious_Emissions_NVNT_ANT1_3-DH1_2480_00 Page 27 of 55 6. Bandedge ConditionAntennaModulationTX ModeBandedge MAX.ValueLimitResult NVNTANT11-DH12402.00-42.652-24.847Pass NVNTANT11-DH1Hopping_LCH-42.477-24.202Pass NVNTANT11-DH12480.00-50.474-24.794Pass NVNTANT11-DH1Hopping_HCH-51.142-24.577Pass NVNTANT12-DH12402.00-42.615-24.856Pass …

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