2AB73-1741FSonic Toothbrush

User Manual Model:1741F Always Wear Your Smile Polish Smart HD Display Sonic ToothBrush SAFEGUARDS AND WARNINGS 01 WARNING! Not suitable for children under 36 months due to small parts. Choking hazard.Keep the appliance, charging base and its cable out of reachof children. This appliance should only be used by children old enough to understand the instructions concerning the use of the appliance and its hazards or under direct adult supervision. Cleaning and maintenance of the device shall not becompleted by children under the age of 10 and requires direct adult supervision. When undergoing treatment of any oral condition consultyour dental professional prior to use.Replace brush head every 3 months or sooner if the bristlesshow signs of significant wear or damage. Do not use any brush heads other than what is recommended by the manufacturer. If damaged, discontinue use. Do not attempt to repair/modify. Use only for intended use. Do not store or charge Brush link Pro" over water or heat. Keep away from strong magnetic fields as it could lead to malfunctions or damage. Do not charge the appliance on a metal desktop. Cau�on Do not clean the brush head, handle and charging base in the dishwasher. Do not use the toothbrush in the bath or shower. If you had oral or gum surgery in the previous 2 months, consult your dentist before using it. If you have medical concerns, consult your doctor before you use the appliance. The appliance complies with the safety standard for electromagnetic devices. If you have a pacemaker or other implanted device, consult your doctor before use. This appliance has only been designed for cleaning teeth, gums and tongue. Do not use it for any other purpose. The toothbrush is a personal care device, suggest to use for use om multiple patients in a dental practice or institution. Stop using a brush head with crushed or bent bristles. Replace the brush head every 3 months or sooner if signs of Bristles Fade appear. Do not use other brush heads instead of the ones recommended by the manufacturer. Supervise children while they are brushing until they have established good brushing habits. Product Components Brush head Reminder Blue Bristles Fade for Brush Head Replacement 1 Power Bu�on Smart HD Display 2 Mode Selec�on Bu�on 4 3 Induc�ve charging case with USB cord 5 0302 Polish Do not charge your sonic toothbrush via computer USB port. After the initial 12 hour battery charge, please ensure subsequent charging time is 8 hours for optimal battery life. Attention: 04 Smart Sonic Toothbrush Model No Waterproof Function Operation Outlook Product Size Product Weight Color Charging Type Charging Time Battery Capacity Battery Life 1741F IPX7 Button Press Main Body Material: PC+ABS+UV Painting Main Device : 27.8*27.8*248.6mm Charging Base: 65.6*65.6*26.3mm Main Body About 115g Charging Base:100g Black, White Wireless Charger About 8 Hours Lithium Rechargeable Battery 800mah About 1 Month (If Use 4 Minutes Everyday) Brush Modes 5 Different Modes, Each Mode Will Be Lighted Up When Relevant Mode Function Is On Clean Mode: 34800 Brush Strokes Per Minute White Mode: 33000-40000 Brush Strokes Per Minute Polish Mode: 35000 Brush Strokes Per Minute Soft Mode: 33000 Brush Strokes Per Minute Sensative Mode: 28200 Brush Strokes Per Minute 2 Brush Head 1 Handle With Ergonomic Shape� 1 Wireless Charger 1 User Manual 1 Gift Box Package Contents Place the brush handle on the charging base - the LED indicator will flash white during charging. Ba�ery Charging For ultimate performance, charge your sonic toothbrush battery for a full 12 hours, before initial use. When the battery is low, the device will vibrate 4 times and the LED indicator will flash red. 0504 Polish Hold down to activate the battery for the first time. The LED indicator light in white color when battery is fully charged. Smudge the toothpaste to teeth before use (Notice: launch toothbrush after put into mouth ) Clean Effectively remove dirt and keep the mouth clean White Removes surface stains like tea stains, coffee stains Polish Deep cleaning of oral cavity Soft Gentle customization for the oral health Sensitive Specially tailored for sensitive teeth-gentle care of the teeth 34800 �mes/minute 33000-40000 �mes/minute 35000 �mes/minute 33000 �mes/minute 28200 �mes/minute Func�ons of Smart ToothbrushInstruc�on for Use Put brush head into toothbrush body and make a certain gap between head and body 01 Take some toothpaste on the wet bristle 02 03 Change the cleaning area based on briefly pause during the brushing cycle (Notice: no need to left and right or upper and down to move after launched) 04 0706 Polish CleanWhitePolishSoftSensitive Cleaning Your Smart Toothbrush Keep your sonic toothbrush clean by rising it down and wiping it with a clean, damp cloth. A mild soap can be used if needed. Do not place your toothbrush, or any of its components, in the dishwasher. Storing Your Smart toothbrush Storing- If you are not going to use it for an extended period of time, unplug the charging base, clean all parts and store them in a cool, dry place away from direct sunlight. 0908 By doing this, you help to preserve the environment. The built-in rechargeable battery contains substances that may pollute the environment. Always remove the battery before you discard and hand in the appliance at an official collection point. Removing the rechargeable battery. This process is not reversible. To remove the recharge battery, you need a flat-head (standard) screwdriver. Observe basic safety precautions when you follow the procedure above. Be sure to protect your eyes, hands, fingers and the surface on which you work. Do not throw away the appliance with the normal household waste at the end of life, but hand it in at an official collection point for recycling. Environment Guarantee Restric�ons The terms of the international guarantee do not cover the following: - Brush head. - Damage caused by misuse, abuse, neglect, alterations to unauthorized…

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C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Joint Chinese Ltd Address: Building 6, Huafeng Tech Park, Luotian Industrial Area, Songgang Town, Baoan Shenzhen China Product Name: Sonic Toothbrush Model Number: 1741F FCC Identifier: 2AB73-1741F 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: Kathy Zhao Date: 12/20/2022 Title: Export Sales Manager Signature of applicant:

C5266091_X10_Ed.1 1/1 Joint Chinese Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 12/20/2022 Subject: Request for Confidentiality FCC ID: 2AB73-1741F 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. Exhibits Long-Term Confidentiality Short-Term Confidentiality ID Label/Location No No Attestation Statement No No External Photos No Block Diagram Schematics Test Report No No Test Setup Photos No User’s Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No 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. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Kathy Zhao Date: 12/20/2022 Title: Export Sales Manager

Page 1 of 4 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Appendix - EUT Photos Model: 1741F Photo 1 Photo 2 Page 2 of 4 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 3 Photo 4 Page 3 of 4 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 5 Photo 6 Page 4 of 4 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 7 ----End of Report----

Label Location

Page 1 of 3 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Appendix - EUT Photos Model: 1741F Photo 1 Photo 2 ANT Page 2 of 3 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 3 Photo 4 Page 3 of 3 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 5 ----End of Report----

Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Tel : (8 6-755)88850135 Fax: (86-755) 88850136 We b : www.mtitest.com E-mail: [email protected] Test Report Report No.: MTi221108011-02E2 Date of issue: 2022-12-14 Applicant: Joint Chinese Ltd Product: Sonic Toothbrush Model(s): 1741F FCC ID: 2AB73-1741F Shenzhen Microtest Co., Ltd. http://www.mtitest.com Page 2 of 13 Report No.: MTi221108011-02E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] Instructions 1. This test report shall not be partially reproduced without the written consent of the laboratory. 2. The test results in this test report are only responsible for the samples submitted 3. This test report is invalid without the seal and signature of the laboratory. 4. This test report is invalid if transferred, altered, or tampered with in any form without authorization. 5. Any objection to this test report shall be submitted to the laboratory within 15 days from the date of receipt of the report. Page 3 of 13 Report No.: MTi221108011-02E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] Contents 1 General Description ........................................................................................................................ 5 1.1 Description of the EUT ....................................................................................................................................... 5 1.2 Description of test modes ................................................................................................................................... 5 1.3 Description of support units ................................................................................................................................ 6 2 Measurement uncertainty ............................................................................................................... 6 3 Test facilities and accreditations .................................................................................................... 7 3.1 Test laboratory .................................................................................................................................................... 7 4 List of test equipment ..................................................................................................................... 8 5 Test result ........................................................................................................................................ 9 5.2 Test setup ......................................................................................................................................................... 10 5.3 Test Procedures ................................................................................................................................................ 10 5.4 Equipment Approval Considerations item 5 b) of KDB 680106 D01 v03r01 .................................................... 11 5.5 Test results ....................................................................................................................................................... 12 Photographs of the Test Setup ............................................................................................................ 13 Photographs of the EUT....................................................................................................................... 13 Page 4 of 13 Report No.: MTi221108011-02E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] Test Result Certification Applicant: Joint Chinese Ltd Address: Building 6, Huafeng Tech Park, Luotian Industrial Area, Songgang Town, Baoan Shenzhen China Manufacturer: Joint Chinese Ltd Address: Building 6, Huafeng Tech Park, Luotian Industrial Area, Songgang Town, Baoan Shenzhen China Product description Product name: Sonic Toothbrush Trademark: N/A Model name: 1741F Series Model: N/A Standards: FCC CFR 47 PART 1, § 1.1310 Test method: KDB 680106 v03r01 Date of Test Date of test: 2022-11-11 ~ 2022-12-13 Te s t result: Pass Test Engineer : (David Lee) Reviewed By: : (Leon Chen) Approved By: : (Tom Xue) Page 5 of 13 Report No.: MTi221108011-02E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] 1 General Description 1.1 Description of the EUT Product name: Sonic Toothbrush Model name: 1741F Series Model: N/A Model difference: N/A Electrical rating: Input: DC 5V/0.4A Wireless Output: 2W Accessories: N/A Hardware version: 1741F V2.0 Software version: 1741F V1 RF specification: Operation frequency: 115 kHz – 205 kHz Modulation type: ASK Antenna type: Coil Antenna 1.2 Description of test modes All the test modes were carried out with the EUT in normal operation, the final test mode of the EUT was the worst test mode for emission test, which was shown in this report and defined as: No. Emission test modes Mode 1 Wireless output(Toothbrush 2W) Mode 2 Stand-by The test data only show worst test mode: Mode 1 Page 6 of 13 Report No.: MTi221108011-02E2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected]…

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Address: 101, No.7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Tel : (8 6-755)88850135 Fax: (86-755) 88850136 We b : www.mtitest.com E-mail: [email protected] Test Report Report No.: MTi221108011-02E1 Date of issue: 2022-12-14 Applicant: Joint Chinese Ltd Product: Sonic Toothbrush Model(s): 1741F FCC ID: 2AB73-1741F Shenzhen Microtest Co., Ltd. http://www.mtitest.com Page 2 of 22 Report No.: MTi221108011-02E1 Address: 101, No. 7, Zone2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] Instructions 1. This test report shall not be partially reproduced without the written consent of the laboratory. 2. The test results in this test report are only responsible for the samples submitted 3. This test report is invalid without the seal and signature of the laboratory. 4. This test report is invalid if transferred, altered, or tampered with in any form without authorization. 5. Any objection to this test report shall be submitted to the laboratory within 15 days from the date of receipt of the report. Page 3 of 22 Report No.: MTi221108011-02E1 Address: 101, No. 7, Zone2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] Table of contents 1. General Description ........................................................................................................................ 5 1.1 Description of the EUT ....................................................................................................................................... 5 1.2 Description of test modes ................................................................................................................................... 6 1.3 Description of support units ................................................................................................................................ 6 1.4 Environmental conditions ................................................................................................................................... 6 2. Measurement uncertainty ............................................................................................................... 7 3. Test laboratory ................................................................................................................................. 7 4. Summary of Test Result .................................................................................................................. 8 5. List of test equipment ..................................................................................................................... 9 6. Test Results ................................................................................................................................... 10 5.1 Antenna requirement ........................................................................................................................................ 10 5.3 AC power line conducted emissions ........................................................................................................... 11 5.4 Radiated emissions..................................................................................................................................... 14 5.5 Occupied bandwidth test ............................................................................................................................ 21 Photographs of the test setup ............................................................................................................. 22 Photographs of the EUT....................................................................................................................... 22 Page 4 of 22 Report No.: MTi221108011-02E1 Address: 101, No. 7, Zone2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] Test Result Certification Applicant: Joint Chinese Ltd Address: Building 6, Huafeng Tech Park, Luotian Industrial Area, Songgang Town, Baoan Shenzhen China Manufacturer: Joint Chinese Ltd Address: Building 6, Huafeng Tech Park, Luotian Industrial Area, Songgang Town, Baoan Shenzhen China Product description Product name: Sonic Toothbrush Trademark: N/A Model name: 1741F Series Model: N/A Standards: FCC 47 CFR Part 15 Subpart C Test method: ANSI C63.10-2013 Date of Test Date of test: 2022-11-11 ~ 2022-12-13 Te s t result: Pass Test Engineer : (David Lee) Reviewed By: : (Leon Chen) Approved By: : (Tom Xue) Page 5 of 22 Report No.: MTi221108011-02E1 Address: 101, No. 7, Zone2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] 1. General Description 1.1 Description of the EUT Product name: Sonic Toothbrush Model name: 1741F Series Model: N/A Model difference: N/A Electrical rating: Input: DC 5V/0.4A Wireless Output: 2W Accessories: N/A Hardware version: 1741F V2.0 Software version: 1741F V1 Test sample(s) number: MTi221108011-02S1001 RF specification: Operation frequency: 115 kHz – 205 kHz Modulation type: ASK Antenna type: Coil Antenna Page 6 of 22 Report No.: MTi221108011-02E1 Address: 101, No. 7, Zone2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] 1.2 Description of test modes All the test modes were carried out with the EUT in normal operation, the final test mode of the EUT was the worst test mode for emis…

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东莞市德弗力五金电子材料有限公司 Dongguan city DFL Electronic Technology Co., LTD 产品规格书(内部) ProductSpecification 客户名称（Customer）： 深圳友宏科技有限公司 产品名称 （Description）： 电动牙刷线圈 产品规格 （Specification）： Y 5.1 32 0.07*85 16TS 3.7UH 日期（Date）：2016-09-27版本 （Version）： DFL20160927001 磁片材料无磁片尺寸无 线圈材料丝包线0.07*85p线圈尺寸5.1mm*32mm 线圈圈数16TS线圈层数单层 1.外形尺寸（Dimensions ） Unit: mm 标准ABCD备注 STD.32.0±0.55.1±1.030±0.53±1 2.电磁特性（Electrical characteristics） 标准 电感(L S ) Q值DCR备注 STD. 3.7±5%uH0.48±5%（Max）0.07±5%Ω（Max） 注：测试仪器及方法（Testing Instrument and Method） TH2816B @100kHz、1V、At 25±5°C；TH2512B At 25±5°C 3.判定（Evaluation）： 版本修改内容修改日备注 第一次发行 2016-9-27 包装 珍珠棉+纸箱 本产品符合ROHS要求 确认栏/Approval 工 程机房品 保生 产营 业审 核 客户确认 官全龙

Page 1 of 2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] Appendix - Test Setup Photos Model: 1741F Radiated emissions – Below 30 MHz Radiated emissions –Below 1 GHz Page 2 of 2 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Te l : (86-755)88850135 Fax: (86-755) 88850136 Web: www.mtitest.com E-mail: [email protected] Conducted emissions MPE ----End of Report----