2A2FN-LBC-0001ALebooo Smart Sonic Toothbrush . StarDiamond

Ʉɪɚɬɤɨɟɪɭɤɨɜɨɞɫɬɜɨɩɨɥɶɡɨɜɚɬɟɥɹ Smart SonicToothbrush FCC warning: 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, 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. 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Dongguan Lebooo Electronic Technology Co.,Ltd. Date: 2021-7-17 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD FCC ID: 2A2FN-LBC-0001A To Whom It May Concern: This letter is to ascertain that Dongguan Lebooo Electronic Technology Co.,Ltd. EUT：Lebooo Smart Sonic Toothbrush . StarDiamond MODEL No.: LBT-203552A Has been the units used for conducting FCC compliance testing, the SDoC part will be tested by EMTEK (SHENZHEN) CO., LTD. If you have any question or concerns, pls. contact us. Sincerely, Client’s signature ： Client’s name / title ： Lihui Chen Contact information / address: Dongguan Lebooo Electronic Technology Co.,Ltd. /No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province

Rev 11/20/07 Dongguan Lebooo Electronic Technology Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2A2FN-LBC-0001A Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram, Schematics, Operational Description, Block Diagram Operation Description schematic diagram The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Sincerely, Lihui Chen Dongguan Lebooo Electronic Technology Co.,Ltd.

Dongguan Lebooo Electronic Technology Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2021-7-17 SUBJECT: FCC Application for FCC ID: 2A2FN-LBC-0001A To Whom It May Concern: We, the undersigned, hereby authorize Lisa Wang at EMTEK (SHENZHEN) CO., LTD. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by EMTEK (SHENZHEN) CO., LTD. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Lihui Chen Dongguan Lebooo Electronic Technology Co.,Ltd.

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Report No.ES210608005W03 Page 1 of 12 Ver.1.0 TEST REPORT Product Name ： Lebooo Smart Sonic Toothbrush . StarDiamond Model Number ： LBT-203552A FCC ID ： 2A2FN-LBC-0001A Prepared for : Dongguan Lebooo Electronic Technology Co.,Ltd. Address : No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Bldg 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number : ES210608005W03 Date(s) of Tests : Jun 11,2021 to Jul 16,2021 Date of issue : Jul 16,2021 $二维码$ Report No.ES210608005W03 Page 2 of 12 Ver.1.0 TABLE OF CONTENT Test Report Description Page 1. SUMMARY OF TEST RESULT ........................................................................................................ 4 2. GENERAL INFORMATION ............................................................................................................... 5 2.1. DESCRIPTION OF DEVICE (EUT) .................................................................................................................................... 5 2.2. DESCRIPTION OF TEST FACILITY .................................................................................................................................... 6 2.3. MEASUREMENT UNCERTAINTY ....................................................................................................................................... 6 3. MEASURING DEVICE AND TEST EQUIPMENT ......................................................................... 7 3.1. FOR MPE MEASUREMENT ............................................................................................................................................. 7 4. RF EXPOSURE ................................................................................................................................... 7 4.1. MEASURING STANDARD .................................................................................................................................................. 8 4.2. REQUIMENTS .................................................................................................................................................................. 8 4.3. TEST CONFIGURATION .................................................................................................................................................... 9 4.4. LIMITS ........................................................................................................................................................................... 10 4.5. MEASURING RESULTS .................................................................................................................................................. 11 5. PHOTOGRAPHS OF TEST SETUP .............................................................................................. 12 Report No.ES210608005W03 Page 3 of 12 Ver.1.0 TEST REPORT DESCRIPTION Applicant : Dongguan Lebooo Electronic Technology Co.,Ltd. Address : No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province Manufacturer : Dongguan Lebooo Electronic Technology Co.,Ltd. Address : No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province EUT : Lebooo Smart Sonic Toothbrush . StarDiamond Model Name : LBT-203552A Trademark : N/A Measurement Procedure Used: FCC Part 1(1.1310) and Part 2(2.1091) KDB 680106 D01 RF Exposure Wireless Charging App v03 The device described above is tested by EMTEK(SHENZHEN) CO., LTD. to determine the maximum emission levels emanating from the device and the severe levels of the device can endure and its performance criterion. The measurement results are contained in this test report and EMTEK(SHENZHEN) CO., LTD. is assumed full of responsibility for the accuracy and completeness of these measurements. Also, this report shows that the EUT (Equipment Under Test) is technically compliant with the FCC requirements. This report applies to above tested sample only and shall not be reproduced in part without written approval of EMTEK(SHENZHEN) CO., LTD. Date of Test : Jun 11,2021 to Jul 16,2021 Prepared by : Sewen Guo /Editor Reviewer : Joe Xia/Supervisor Approved & Authorized Signer : Lisa Wang/Manager Report No.ES210608005W03 Page 4 of 12 Ver.1.0 1. SUMMARY OF TEST RESULT EMISSION Description of Test Item Standard & Limits Results MPE FCC Part 1(1.1310) and Part 2(2.1091) KDB 680106 D01 RF Exposure Wireless Charging App v03 Pass Note: N/A is an abbreviation for Not Applicable. Report No.ES210608005W03 Page 5 of 12 Ver.1.0 2. GENERAL INFORMATION 2.1. Description of Device (EUT) EUT : Lebooo Smart Sonic Toothbrush . StarDiamond Model Number : LBT-203552A Power Rating : Wireless Charger: Rated power 3.8W Operation Frequency for WPT : 110KHz-205KHz Antenna Type: : Integral Antenna(Induction coil) Date of Received : Jun 11,2021 Date of Test : Jun 11,2021 to Jul 16,2021 Report No.ES210608005W03 Page 6 of 12 Ver.1.0 2.2. Description of Test Facility Site Description EMC Lab. : Accredited by CNAS The Certificate Registration Number is L2291. The Laboratory has been assessed and proved to be in compliance with CNAS-CL01 (identical to ISO/IEC 17025:2017) Accredited by FCC Designation Number: CN1204 Test Firm Registration Number: 882943 Accredited by A2LA The Certificate Number is 4321.01. Accredited by Industry Canada The Conformity Assessment Body Identifier is CN0008 Name of Firm : EMTEK (SHENZHEN) CO., LTD. Site Location : Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China 2.3. Measurement Uncertainty Radiated Emission Uncertainty : 3.3dB (30M~1GHz Polarize: H) 3.2dB (30M~1GHz Polarize: V) 3.7dB (1~18GHz Polarize: H) 3.6dB (1~18GHz Polarize: V) Report No.ES210608005W03 Page 7 of 12 Ver.1.0 3. MEASURING DEVICE AND TEST EQUIPMENT 3.1. For MPE Measurement Used Equipment Manufacturer Model No. Serial No. Last Cal. Ca…

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Report No. ES210608005W02 Page 1 of 28 Ver.1.0 TEST REPORT Product Name ： Lebooo Smart Sonic Toothbrush . StarDiamond Model Number ： LBT-203552A FCC ID ： 2A2FN-LBC-0001A Prepared for : Dongguan Lebooo Electronic Technology Co.,Ltd. Address : No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number : ES210608005W02 Date(s) of Tests : Jun 11,2021 to Jul 16,2021 Date of issue : Jul 16,2021 $二维码$ Report No. ES210608005W02 Page 2 of 28 Ver.1.0 Table of Contents 1 EUT TECHNICAL DESCRIPTION ............................................................................................................. 4 2 SUMMARY OF TEST RESULT .................................................................................................................... 5 3 TEST METHODOLOGY ............................................................................................................................... 6 3.1 GENERAL DESCRIPTION OF APPLIED STANDARDS ....................................................................... 6 3.2 MEASUREMENT EQUIPMENT USED .................................................................................................. 6 3.3 DESCRIPTION OF TEST MODES ........................................................................................................... 7 4 FACILITIES AND ACCREDITATIONS ...................................................................................................... 8 4.1 FACILITIES............................................................................................................................................... 8 4.2 LABORATORY ACCREDITATIONS AND LISTINGS ........................................................................... 8 5 TEST SYSTEM UNCERTAINTY ................................................................................................................. 9 6 SETUP OF EQUIPMENT UNDER TEST .................................................................................................. 10 6.1 RADIO FREQUENCY TEST SETUP 1 ................................................................................................... 10 6.2 RADIO FREQUENCY TEST SETUP 2 ................................................................................................... 10 6.3 CONDUCTED EMISSION TEST SETUP .............................................................................................. 11 6.4 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ............................................................... 12 6.5 SUPPORT EQUIPMENT ......................................................................................................................... 12 7 TEST REQUIREMENTS ............................................................................................................................. 13 7.1 OCCUPIED BANDWIDTH .................................................................................................................... 13 7.2 RADIATED SPURIOUS EMISSION ...................................................................................................... 15 7.3 CONDUCTED EMISSION TEST ........................................................................................................... 25 8 ANTENNA APPLICATION ......................................................................................................................... 28 Report No. ES210608005W02 Page 3 of 28 Ver.1.0 TEST RESULT CERTIFICATION Applicant : Dongguan Lebooo Electronic Technology Co.,Ltd.. Address : No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province Manufacturer : Dongguan Lebooo Electronic Technology Co.,Ltd.. Address : No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province EUT : Lebooo Smart Sonic Toothbrush . StarDiamond Model Name : LBT-203552A Trademark : N/A Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2, Subpart J FCC 47 CFR Part 15, Subpart C PASS The above equipment was tested by EMTEK(SHENZHEN) CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 15.207&15.209. The test results of this report relate only to the tested sample identified in this report. Date of Test : Jun 11,2021 to Jul 16,2021 Prepared by : Qiang Wang /Editor Reviewer : Joe Xia/Editor Approve & Authorized Signer : Lisa Wang/Manager Report No. ES210608005W02 Page 4 of 28 Ver.1.0 1 EUT TECHNICAL DESCRIPTION Product: Lebooo Smart Sonic Toothbrush . StarDiamond Model Number: LBT-203552A Power Supply DC5V from adapter Test Voltage AC 120V/60Hz Applicant Dongguan Lebooo Electronic Technology Co.,Ltd. Address No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province Manufacturer Dongguan Lebooo Electronic Technology Co.,Ltd. Address No. 2, Qiwuzhou Second Road of Xiaoxiang, Wanjiang Street, Dongguan City, Guangdong Province Temperature Range: -20°C ~ +60°C Note: for more details, please refer to the User’s manual of the EUT. Report No. ES210608005W02 Page 5 of 28 Ver.1.0 2 SUMMARY OF TEST RESULT FCC Part Clause Test Parameter Verdict Remark 2.1049 Occupied Bandwidth PASS 15.209 Radiated Spurious Emissions PASS 15.207 Conducted Emission PASS NOTE1: N/A (Not Applicable) RELATED SUBMITTAL(S) / GRANT(S): This submittal(s) (test report) is intended for FCC ID: 2A2FN-LBC-0001A filing to comply with Section 15.225 of the FCC Part 15, Subpart C Rules. Report No. ES210608005W02 Page 6 of 28 Ver.1.0 3 TEST METHODOLOGY 3.1 GENERAL DESCRIPTION OF APPLIED STANDAR…

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TEST SETUP PHOTOGRAPHS 1.1. Photos of Conducted Emission Measurement 1.2. Photos of Radiation Emission Measurement Spurious Emission Test Setup (Below 30MHz) Spurious Emission Test Setup (Below 1000MHz) ----------------The end----------------