2A2DH-RVCLMD28Viomi Robot Vacuum S9-Automatic Dirt Disposal

Smart Robot Vacuum Cleaner T1 Please read the User Manual before using---Warranty card included, pictures are for reference only. User Manual  Safety information Service restriction This product is intended for floor cleaning use only in the home environment. Do not use it outdoors (such as open balcony), non-ground surface (such as sofas), commercial or industrial environments. nvironment (such as a duplex flat, open balcony, top of home) without a protective fence. nvironment where the temperature is above 40°C or below 0°C, or there is any liquid or viscous substance. round in your home before use, in order to avoid dragging when the robot is running. Put away the fragile items and sundries (such as vases, plastic bags, etc.) on the ground to avoid the robot being blocked or damage to the valuables in the home caused by slight collision during running. rdered physical, mental or cognitive abilities, including children, to use or operate the product. ow children to use the robot as a toy. Keep the children and pets as far as possible while the robot is working. tool of the main brush in the area which is accessible to children. Keep the human body, pet's hair, fingers, etc. away from the suction inlet of the machine when the robot is running. to clean any burning objects (such as un-extinguished cigarettes).for suction of hard or sharp objects (such as decoration waste, glass, steel nails, etc.). ove the robot by holding the cover of laser distance sensor, the cover of the machine or the impact bumper as the handle. ny part of the product with a wet cloth or liquid. nvironment with carpet. roduct in accordance with the instructions in the manual. Any loss or damage caused by improper use is the user’s own responsibility. forbidden to incinerate the product even if it has been severely damaged, for the battery inside may cause an This appliance is not intended for use by persons (including children) with reduced physical sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.Children should be supervised to ensuere that they do not play with the appliance. explosion. Battery and charging ny third-party batteries, chargers, and charging bases. ssemble, repair or modify the battery or the charging base. ce the charging base near a heat source (such as a radiator). rging base with a wet cloth or wet hands. rd inactive batteries at will, but hand them to professional recycling facilities for handling. ower wire is broken or snapped, stop using it immediately and contact customer service in time. package is recommended. Charging button Short press to activate the charging function. Cleaning/Power button Short press to activate the cleaning function. Partial cleaning button Short press to activate partial cleaning. Reset WiFi Press and hold the Partial cleaning button and the Charging button for more than 3 seconds at the same time. Note: Press any button to pause during cleaning/charging or partial cleaning. Packing list and introductionMain machine x1 Packaging list and introduction Main machine Laser distance sensor Speaker TOF sensor for wall/ Infrared auxiliary charger sensor Laser head cover Laser head cover pressure sensor Infrared charger sensor/Infrared anti-collision sensor Infrared auxiliary charger sensor Collision sensorDust boxDust box opening buttonVent outlet Driving wheel Rolling brush Docking electrode slice for dust collecting Docking electrode slice for chargingUniversal wheel Side brush Accessories list for Smart Robot Vacuum Cleaner Water tank x1 Disposable mop x10 Main machine Packaging list and introduction Dust box module x1 Mopping module x1 Find and install the filter screen before using Find and install the water tank and mop (or disposable mop) before using Packaging list and introduction Dust box fasteneCleaning toolDust box upper bracketDust box filter screenDust box lower bracketDust box flip coverDust box button Water tankWater tank coverPaste areaWater tank filter elementWater tank wheel setMopWater tankfastener 1.Charging base Charging base indicatorSignal emission zone Front side of charging base Back side of charging base Charging base adapter Power port 2.Dust collector (Two-in-one for dust collection and charging) List of optional accessories (Users can choose one of the two sets according to actual demands----Charging base + Charging base adapter or Dust collector + Dust collector charging wire.) CoverDust collector barrelCharging/Dust collecting indicatorInfrared lensDust collecting inletCharging/Dust collecting clip Front side of dust collector Air outlet Back side of dust collector Packaging list and introduction PLEASE NOTICE: The electric plug attached is subject to your country specification. Charging Contact Pins 1.Install the charging base Place the charging base on a flat surface against the wall.Ensure that there is more than 1.2-meter clear space in front and more than 0.5-meter clear space on both sides of the charging base. Against the wall Not against the wall Installation The color of power button indicates the power of the battery. White light: power>15%Orange breathing light: power<15% on the charging clip of the charging base. The orange light of the power button will be always on when charging. Long press the button for power-on. Press the charging ley, the machine will find the charging base automatically for charging. Installation 2.Install the dust collector Place the dust collector 6mm or more away from the wall on a flat surface 0.06m away from the wall Ensure that there is more than 1.2-meter clear space in front and more than0.5-meter clear space on both sides of the dust collector. Note:If choosing the charging base, please ignore the installation of dust collector When charging base and dust collector exist at the same time, place them in Installation 10 Lenovo Cleaner T1 Connect to th…

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Guangdong Lizi Technology Co., Ltd I, the signer, Lin Wang All models are electrically identical, only except color and UV lamp. They are of different color and no UV lamp for Models V-RVCLMD28A, V-RVCLMD28B,V-RVCLMD28C; They are of different color and have UV lamp for Models V-RVCLMD28D, V-RVCLMD28E,V- RVCLMD28F. Item Name ：Viomi Robot Vacuum S9-Automatic Dirt Disposal Model Number: V-RVCLMD28A Additional Model: V-RVCLMD28B, V-RVCLMD28C, V-RVCLMD28D,V-RVCLMD28E, V-RVCLMD28F FCC ID: 2A2DH-RVCLMD28 <Signature> Name: Lin Wang Title: Safety engineer Company: Guangdong Lizi Technology Co., Ltd

DATE : 2021.07.22 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint EST Technology Co., Ltd. Address: Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China (Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Guangdong Lizi Technology Co., Ltd Address:North No. 2, Xinxi Four Road, Xiashi Village, Lunjiao Town, Shunde District, Foshan, Guangdong, China (Applicant Name and address) <Signature> Name:Lin Wang Title: Safety engineer Company: Guangdong Lizi Technology Co., Ltd

DATE : 2021.07.22 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2A2DH-RVCLMD28 Product Name: Viomi Robot Vacuum S9-Automatic Dirt Disposal Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name:Lin Wang Title: Safety engineer Company: Guangdong Lizi Technology Co., Ltd

ExternalPhotos M/N:V-RVCLMD28A ExternalPhotos M/N:V-RVCLMD28A ExternalPhotos M/N:V-RVCLMD28A ExternalPhotos M/N:V-RVCLMD28A

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FCCID:2A2DH-RVCLMD28 ESTTechnologyCo.,LtdReportNo.ESTE-R2107042Page1of5 FCC47CFRMPEREPORT GuangdongLiziTechnologyCo.,Ltd RobotVacuumCleanerS9-AutomaticDirtDisposal ModelNumber:V-RVCLMD28A AdditionalModel:V-RVCLMD28B,V-RVCLMD28C,V-RVCLMD28D, V-RVCLMD28E,V-RVCLMD28F FCCID:2A2DH-RVCLMD28 Preparedfor:GuangdongLiziTechnologyCo.,Ltd Room1-6,Northof1stFloor,BlockA,ShengdaIndustrialPark,NorthNo.2, XinxiFourRoad,XiashiVillage,LunjiaoTown,ShundeDistrict,Foshan, Guangdong,China PreparedBy:ESTTechnologyCo.,Ltd. Chilingxiang,Qishantou,Santun,Houjie,Dongguan,Guangdong,China Tel:86-769-83081888-808 ReportNumber:ESTE-R2107042 DateofTest:Jun.15~Jul.07,2021 DateofReport:Jul.09,2021 FCCID:2A2DH-RVCLMD28 ESTTechnologyCo.,LtdReportNo.ESTE-R2107042Page2of5 MaximumPermissibleExposure 1.ApplicableStandards Systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergy levelinexcesslimitformaximumpermissibleexposure.Inaccordancewith 47CFRFCCPart2SubpartJ,section2.1091thisdevicehasbeendefinedas amobiledevicewherebyadistanceof0.2mnormallycanbemaintained betweentheuserandthedevice. 1.1.LimitsforMaximumPermissibleExposure(MPE) (a)LimitsforOccupational/ControlledExposure Frequency Range (MHz) ElectricField Strength(E) (V/m) MagneticField Strength(H) (A/m) PowerDensity(S) (mW/cm 2 ) AveragingTimes ︱E︱ 2 ,︱H︱ 2 orS (minutes) 0.3-3.06141.63(100)*6 3.0-301842/f4.89/f(900/f)*6 30-30061.40.1631.06 300-1500F/3006 1500-1000056 (b)LimitsforGeneralPopulation/UncontrolledExposure Frequency Range(MHz) ElectricField Strength(E) (V/m) MagneticField Strength(H) (A/m) PowerDensity(S) (mW/cm 2 ) AveragingTimes ︱E︱ 2 ,︱H︱ 2 orS (minutes) 0.3-1.346141.63(100)*30 1.34-30824/f2.19/f(180/f)*30 30-30027.50.0730.230 300-1500F/150030 1500-100001.o30 Note:f=frequencyinMHz;*Plane-waveequivalentpowerdensity FCCID:2A2DH-RVCLMD28 ESTTechnologyCo.,LtdReportNo.ESTE-R2107042Page3of5 1.2.MPECalculationMethod E(V/m)= d G×P×30 PowerDensity:Pd(W/m 2 )= 377 E 2 E=ElectricField(V/m) P=PeakRFoutputPower(W) G=EUTAntennanumericgain(numeric) d=Separationdistancebetweenradiatorandhumanbody(m) Theformulacanbechangedto Pd= 2 d×377 G×P×30 FromthepeakEUTRFoutputpower,theminimummobileseparationdistance,d=0.2m,as wellasthegainoftheusedantenna,theRFpowerdensitycanbeobtained FCCID:2A2DH-RVCLMD28 ESTTechnologyCo.,LtdReportNo.ESTE-R2107042Page4of5 2.ConductedPowerResult Mode Frequency (MHz) Peakoutputpower (dBm) Peakoutput power(mW) Targetpower (dBm) Antennagain (dBi)(Linear) IEEE 802.11b 241218.4970.6318 ± 24.32.69 243716.4243.8516±24.32.69 246216.6045.7116±24.32.69 IEEE 802.11g 241215.5936.2215±24.32.69 243715.5335.7315±24.32.69 246215.5435.8115 ± 24.32.69 IEEE 802.11n HT20 241215.7337.4115 ± 24.32.69 243715.4835.3215±24.32.69 246215.4334.9115±24.32.69 IEEE 802.11n HT40 242215.7637.6715±24.32.69 243715.6436.6415±24.32.69 245215.6436.6415 ± 24.32.69 FCCID:2A2DH-RVCLMD28 ESTTechnologyCo.,LtdReportNo.ESTE-R2107042Page5of5 3.CalculatedResultandLimit Mode Target power (dBm) Antennagain PowerDensity (S) (mW/cm 2 ) Limitedof PowerDensity (S) (mW/cm 2 ) TestResult (dBi)(Linear) 2.4GBand IEEE802.11b204.32.690.053551Complies IEEE802.11g174.32.690.026841Complies IEEE802.11nHT20174.32.690.026841Complies IEEE802.11nHT40174.32.690.026841Complies EndofTestReport

FCC ID: 2A2DH-RVCLMD28 EST Technology Co., Ltd Report No. ESTE-R2107041 Page 1 of 81 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of Guangdong Lizi Technology Co., Ltd Robot Vacuum Cleaner S9-Automatic Dirt Disposal Model Number: V-RVCLMD28A Additional Model: V-RVCLMD28B,V-RVCLMD28C,V-RVCLMD28D, V-RVCLMD28E, V-RVCLMD28F FCC ID: 2A2DH-RVCLMD28 Prepared for: Guangdong Lizi Technology Co., Ltd Room 1-6, North of 1st Floor, Block A, Shengda Industrial Park, North No. 2, Xinxi Four Road, Xiashi Village, Lunjiao Town, Shunde District, Foshan, Guangdong, China Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2107041 Date of Test: Jun. 15~Jul. 07, 2021 Date of Report: Jul. 09, 2021 FCC ID: 2A2DH-RVCLMD28 EST Technology Co., Ltd Report No. ESTE-R2107041 Page 2 of 81 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION......................................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................. 5 1.1. Description of Device (EUT) ........................................................................................................... 5 1.2. Antenna Information ........................................................................................................................ 5 2. SUMMARY OF TEST ......................................................................................................................... 6 2.1. Summary of test result ...................................................................................................................... 6 2.2. Test Facilities ................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................. 8 2.4. Assistant equipment used for test ..................................................................................................... 8 2.5. Block Diagram ................................................................................................................................. 8 2.6. Test Mode ......................................................................................................................................... 9 2.7. Power Setting of Test Software ...................................................................................................... 10 2.8. Duty Cycle ...................................................................................................................................... 10 2.9. Channel List ................................................................................................................................... 13 2.10. Test Equipment List ....................................................................................................................... 14 3. 6DB BANDWIDTH .......................................................................................................................... 15 3.1. Limit ............................................................................................................................................... 15 3.2. Test Setup ....................................................................................................................................... 15 3.3. Spectrum Analyzer Setting ............................................................................................................. 15 3.4. Test Procedure ................................................................................................................................ 15 3.5. Test Result ...................................................................................................................................... 16 4. MAXIMUM PEAK OUTPUT POWER ................................................................................................. 23 4.1. Limit ............................................................................................................................................... 23 4.2. Test Setup ....................................................................................................................................... 23 4.3. Spectrum Analyzer Setting ............................................................................................................. 23 4.4. Test Procedure ................................................................................................................................ 23 4.5. Test Result ...................................................................................................................................... 24 5. POWER SPECTRAL DENSITY .......................................................................................................... 31 5.1. Limit ............................................................................................................................................... 31 5.2. Test Setup ....................................................................................................................................... 31 5.3. Spectrum Analyzer Setting ............................................................................................................. 31 5.4. Test Procedure ................................................................................................................................ 31 5.5. Test Result ...................................................................................................................................... 32 6. CONDUCTED BAND EDGE ............................................................................................................. 39 6.1. Limit .....................…

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TESTSETUPPHOTO ConductedTest RadiatedTest(Below1GHz) RadiatedTest(Above1GHz)