2AZ2W-XN003intelligent sterilization visual ultrasonic teeth cleaning device

​ MiniBluetoothLaserEngravingMachine User'sManual I.Quickunderstandingofproducts 1.Productdescription Thisproductisasmalldesktoplaserengravingmachine,canbeusedasatoolinflat, opaque,noaddedflameretardantmaterialorganicmaterials,forexample:wood,paperjam, bamboo,leather,andothermaterialscarved,butalsothroughcolorpapercoverglass, ceramics,metalandotherobjectssurface.Aftercarvingleftthepatterncontentandcolor papercolor，Itcanalsodirectlyengravemetal.Youcanalsocutasoftersheet.Forexample, paper,thinboard,EVAsheet,non-wovenfabric,cloth,andothermaterials. Themobilepowersupplyandadapterpowersupply,supportingcomputerandmobile phoneAppcontrolengraving.Thismachineispoweredbyauniversal12V/3Aadapterin randompackagetoachievethebestprintingeffect.Whenusingacomputertooperate,in ordertoensuretheeffectoftheengravingmachine,anexternaladaptercanbeconnected. Anymovementsuchasshaking,falling,collision,tilting,risingandfallingduringworkwill immediatelysuspendthework. 2.PackingList 3.IntroductiontoSignalLamp,PowerSupplyandData Transmission 3.1Signal: Aredlightindicatesthatthepowersupplyisconnected,agreenlightindicatesthatthe deviceisconnected,andabluelightindicatesthatthelaserisstartingtowork(aweakspotis emittedwhenthebluelightisnotonforadjustingthefocusandpreviewingtheengraving position). 3.2：Electricityanddatatransmission: Signallight:Theredlightisontoindicatethatthepowerisconnected,thegreenlightisto indicatethatthedeviceisconnected,andthebluelightisontoindicatethatthelaseris working(whenthebluelightisoff,aweakspotisemitted,whichisusedtoadjustthefocus andpreviewtheengravingposition). Interfaceidentificationforpowersupplyanddatatransmission: ·The12V/3ADCpoweradapterthattheusercarrieswiththisproductispowered,oritcan beequippedbyitself. ·SupportType-SUSBdatacabletoconnecttocomputertotransferdata. ·MobilephoneBluetoothtransmissionandAPPuse:installAPP,supportdual-mode Bluetoothconnectiontomobilephonetotransmitdata 4.Assembly Assemblethediagram： 5.Adjustlaserfocus: Thisproductneedstoadjustthefocusmanually,inthefuselageinsidethelaserhead underthetwistingknobcanadjustthefocus,thisproductinthecaseofpowerontheblue laserspotshotout,noharmtothehumanbody,adjustthelaserfocustoachievethe minimumlightpointcarvingeffectisthebest.Thisproducthasbeenoutofthefactoryfor carving1.5mmplanksforfocusing,suchascarving1.5mmplanksdonotneedtoadjust thefocus,ifyouneedtocarvedifferentthicknessobjects,needtoplacetheobjectunder thisproducttoadjustthefocallengthmanually.Forthefirstoperation,itisrecommended tousethe1.5mmthicktemplateattachedtopackagingboxtotrycarving. Themethodsoffocusingareasfollows: Placethecarvedobjecthorizontallyundertheengravingmachine,observetheblue lightpoint,manuallyadjusttheknobbelowthelaserhead,andachievetheminimumlight point,theengravingeffectisthebest.Becausethelaserwillproducereflection,ifthecolor ofthesurfaceofthecarvedobjectislightcolor,thenthelightpointreflection,thus increasingthedifficultyofobservingthelightpointsizewhenadjustingthefocus,the accessoriesboxofthisproducthasablackPVCpieceattached,becausethelightpoint irradiationontheblacksurfaceisconducivetoclearobservationofthelightpointsize,can beusedtoplaceonthesurfaceofthecarvedobjecttoassistinadjustingthefocus. Note:observethelightpointfallstotheminimumpointonthesurfaceoftheobject,and thefocallengthhasbeenadjustedwhenrotatingtotheminimumpoint.Notethatthe smallerthefocusadjustment,themorerefinedtheimageeffect,thefocallengthisnot adjustedwell,andtheremaybeasituationwheretheimagecannotbeengraved.effective engravingrangeoflaserfocusforthisproductisbetween35mm-80mm(fromlaser knobcalculation).canbecarvedtoanobjectsurfacebelowthebottomofthisproduct,or toasurfaceabovethebottomoftheproduct. 6.Engravingandcuttingfunctions: Engraving:Thismachineadoptslaserengravingmethod,canbecarvedflat,opaque, withoutaddingflameretardantmaterialorganicmaterials,suchas:wood,paperjam,bamboo, leather,plastic,etc.,therearemultiplepicturepatternsandfunctionsintheAPP,seeAPPoperation guidancefordetails. Cutting:thisproductcanalsocutsoftersheetmaterial,suchaspaper,thinboard,EVAsheet, non-wovenfabric,cloth,andothermaterials.Whencutting,pleaseplacethemetalplateattached tothisproducthorizontallyonthebottomofthisproduct,andthenplacethematerialthatneedsto becuthorizontallyonthemetalplatesoasnottocutthebadtabletop. 7.Operationflow: AppDownload： Androidusers:intheGooglePlaystoreandotherapplicationmarketsearch:"Minilaserengraving machine","laserengravingmachine","laserengravingmachine"，appearfullname:"Minilaser engravingmachine"applicationistheapplicationofthisproduct. iPhonemobilephoneusers:intheAppStoresearch"Minilaserengravingmachine","laser engravingmachine","laserengravingmachine"，download. APPicon: Computercontrolengraving:connectpower-connectcomputer-Installengraving software(softwaredownloadaddress: https://drive.google.com/file/d/1yDOr8OX9b-xVWsCLwIb97xw6zQq8oJ2E/view?usp=shari ng）-openengravingsoftware-importprintingpictures-startprinting-printcomplete -pull-outshutdown; Mobilephonecontrolengraving:connectpower–connectBluetooth--importpictures --editengravingcontent--startengraving--finish--pullofftheelectricshutdown; (SeeAPPoperationprocessfordetails,thisproductismainlymobilephoneAPPoperation, therearerichfunctionstoexperience.) II.HardwareIntroduction 1.Hardwarecomposition 1：IndicatorPanel；2：Indicator；3：ExternalInterface；4：Shell；5：MainControlCircuit Board；6：YAxialWireRod；7：Motor；8：XAxialWireRod；9：Lasertube；10：bracket； 11：footpad 2.Performanceparameters III.AppPracticeGuideandSkills ProductManual https://drive.google.com/drive/folders/1dZBMNieslGPnIVnrsClKyMf8DGAVyE4p?u sp=sharing Productinstallationpackage https://drive.google.com/drive/folders/1rT-uWJfb3korFa-aY9tWxltbY evMKbtP?usp=sharing 1.APPinstallation Androidusers:intheGooglePlaystoreandotherapplicationmarketsearch:"Minilaser engravingmachine","laserengravingmachine","laserengravingmachine"，appearfullname:" Minilaserengravingmachine"applicationistheapplicationofthisproduct. iPhonemobilephoneusers:intheAppStoresearch"Minilaserengraving…

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Shenzhen DoubleNew Technology Co., Ltd. Model Difference Product Name: Micro laser engraving machine Model Number: XN003, XN001, XN002, XN004, XN005, XN006, XN007, XN008, XN009, XN010 FCC Identifier: 2AZ2W-XN003 All the models are the same circuit and RF module, except the mode names. Regards Sincerely Client’s signature Client’s name / title: Zhang Yingmeng / Manager Contact information: NO.888, Yangsi Road, Zhangan Street, Jiaojiang, Taizhou City, Zhejiang Province, China.

Shenzhen DoubleNew Technology Co., Ltd. 1/1 Letter of Authorization Company: Shenzhen DoubleNew Technology Co., Ltd. Address: Room 1002,Building A5, Tianrui Industrial Park, No.35, Fuyuan 1st Road, Xinhe Community, Fuhai Street, Baoan District, Shenzhen, Guangdong, China Product Name: Micro laser engraving machine Model Number: XN003, XN001, XN002, XN004, XN005, XN006, XN007, XN008, XN009, XN010 FCC Identifier: 2AZ2W-XN003 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: Zhang Yingmeng Date: 2021-05-24 Title: Manager Signature of applicant:

Shenzhen DoubleNew Technology Co., Ltd. 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-05-24 Subject: Request for Confidentiality FCC ID: 2AZ2W-XN003 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 NOTE 2 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 No ☐ Internal Photos No ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. 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. 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: Zhang Yingmeng Title: Manager

EUT PHOTO(External Photos) FCC ID: 2AZ2W-XN003

Size:27*20.5mm M/N: XN003 FCC ID: 2AZ2W-XN003 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. Label location

EUT PHOTO(Internal Photos) BT Antenna Photos FCC ID: 2AZ2W-XN003 WIFI Antenna Photos ESP32 ※※※※※ END OF REPORT ※※※※※ QFN4x4 LQFP-64

Project No.: ZKT-210520L1934-1E Page 1 of 46 FCC TEST REPORT FCC ID:2AZ2W-XN003 Report Number. ................................ : ZKT-210520L1934-1E Date of Test ................................................. : May. 12, 2021 to May. 18, 2021 Date of issue .................................... : May. 18, 2021 Total number of pages ...................... 33 Test Result ..................................... : PASS Testing Laboratory. ........................... : Shenzhen ZKT Technology Co., Ltd. Address .......................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name ............................ : Shenzhen DoubleNew Technology Co., Ltd. Address .......................................... : Room 1002, Building A5, Tianrui Industrial Park, No. 35, Fuyuan 1st Road, Xinhe Community, Fuhai Street, Baoan District, Shenzhen, Guangdong, China City, Zhejiang Province, China. Manufacturer's name ..................... : Shenzhen DoubleNew Technology Co., Ltd. Address .......................................... : Room 1002, Building A5, Tianrui Industrial Park, No. 35, Fuyuan 1st Road, Xinhe Community, Fuhai Street, Baoan District, Shenzhen, Guangdong, China City, Zhejiang Province, China. Test specification: Standard .......................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.249 ANSI C63.10:2013 Test procedure ................................. : / Non-standard test method ............. : N/A Test Report Form No. .................... : TRF-EL-111_V0 Test Report Form(s) Originator .... : ZKT Testing Master TRF .................................... : Dated: 2020-01-06 This device described above has been tested by ZKT, 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 ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name ................................... : Micro laser engraving machine Trademark ...................................... : N/A Model/Type reference ...................... : XN003 XN001, XN002, XN004, XN005, XN006, XN007, XN008, XN009, XN010 Ratings ............................................. : DC 12V from adapter Project No.: ZKT-210520L1934-1E Page 2 of 46 Testing procedure and testing location: Testing Laboratory ................................... : Shenzhen ZKT Technology Co., Ltd. Address ...................................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Alen He Tested by (name + signature) .................... : Joe Liu Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.: ZKT-210520L1934-1E Page 3 of 46 Table of Contents Page 1.VERSION 5 2.SUMMARY OF TEST RESULTS 6 2.1 TEST FACILITY 7 2.2 MEASUREMENT UNCERTAINTY 7 3. GENERAL INFORMATION 8 3.1 GENERAL DESCRIPTION OF EUT 8 3.2 DESCRIPTION OF TEST MODES 10 3.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 3.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 10 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 11 4. EMC EMISSION TEST 12 4.1 CONDUCTED EMISSION MEASUREMENT 12 4.1.1 1POWER LINE CONDUCTED EMISSION LIMITS 12 4.1.2 TEST PROCEDURE 12 4.1.3 DEVIATION FROM TEST STANDARD 12 4.1.4 TEST SETUP 13 4.1.5 EUT OPERATING CONDITIONS 13 4.1.6 TEST RESULTS 14 4.2 RADIATED EMISSION MEASUREMENT 16 4.2.1 RADIATED EMISSION LIMITS 16 4.2.2 TEST PROCEDURE 17 4.2.3 DEVIATION FROM TEST STANDARD 17 4.2.4 TEST SETUP 17 4.2.5 EUT OPERATING CONDITIONS 18 5. BANDWIDTH OF FREQUENCY BAND EDGE 29 5.1 TEST REQUIREMENT: 29 5.2 TEST PROCEDURE 29 5.3 DEVIATION FROM TEST STANDARD 29 5.4 TEST SETUP 29 5.5 EUT OPERATING CONDITIONS 30 5.6 TEST RESULT 31 6. CHANNEL BANDWIDTH 35 7.1 APPLIED PROCEDURES / LIMIT 35 7.2 TEST PROCEDURE 35 7.3 DEVIATION FROM STANDARD 35 7.4 TEST SETUP 35 Project No.: ZKT-210520L1934-1E Page 4 of 46 Table of Contents Page 7.5 EUT OPERATION CONDITIONS 35 7.6 TEST RESULTS 36 8. CONDUCTED SPURIOUS EMISSION 43 8.1 APPLICABLE STANDARD 43 8.2 TEST PROCEDURE 43 8.3 DEVIATION FROM STANDARD 43 8.4 TEST SETUP 43 8.5 EUT OPERATION CONDITIONS 43 9.ANTENNA REQUIREMENT 45 10. TEST SETUP PHOTO 46 11. EUT CONSTRUCTIONAL DETAILS 46 Project No.: ZKT-210520L1934-1E Page 5 of 46 1.VERSION Report No. Version Description Approved ZKT-210520L1934-1E Rev.01 Initial issue of report May. 18, 2021 Project No.: ZKT-210520L1934-1E Page 6 of 46 2.1SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgment Remark FCC part 15.203 Antenna requirement PASS FCC part 15.207 AC Power Line Conducted Emission PASS FCC part 15.249 Fundamental &Radiated Spurious Emission Measurement PASS FCC part 15.249 (a) Field strength of the fundamental signal PASS FCC part 15.215 20dB Channel Bandwidth PASS FCC part 15.205 Band Edge PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Project No.: ZKT-210520L1934-1E Page 7 of 46 2.11.1 TEST FACILITY Shenzhen ZKT Technology Co., Ltd. Add. : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China FCC Test Firm Registration Number: 692225 Designation Number: CN1299 IC Registered No.: 27033 2.21.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 Conducted Emission Test ±1.38dB 2 RF power conducted ±0.16dB 3 Spurious emissions conducted ±0.21dB 4 All emissions radiated(<1G) ±4.68dB …

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EUT TEST PHOTO FCC ID: 2AZ2W-XN003