2A8YOQT-01Heated Socks

USERGUIDE 1SECURITYSTATEMENT Readandfollowtheinstructionsintheusermanual! Heedallwarningstoavoidriskofinjury! Useonlythepartsprovidedbythemanufacturer! Donotcontinuetousetheproductifyoufindthechargingcableoranypartsdamaged! Anymodificationsoralterationstotheproductwillaffectthesafetyoftheproduct! Caution:Improperusehastheriskoflow-temperatureburns! CONTACTUSWITHANYQUESTIONS:[email protected] 2PACKINGDETAILS ①Apairofheatedsocks(2pcs) ②2xbatteries(7.4V2600mAh) ③1x9Vsmartchargerwithdualchargingfunction ④1xmanualwithmulti-language ⑤Apackingboxandone(1)laundrybag 3.PRODUCTINTRODUCTION HeatedSocks:Keepwarm,safe,durable,sweatabsorbing,andeasytowear. Insulatedhigh-efficiencyheatingelement:Uniformheatdissipation,safefordailyuse. Rechargeablehigh-energybatterypack:Longerheatingtime,saferuseincoldweather. APPsmarttemperaturecontrolsystem:Real-timetemperaturecontrolandpowerdisplay. 4.WARNING ①Precautionsforpersonaluse  Ifyouhaveproblemssensinghotorcoldobjectsonyourskin(duetodiabetes,Raynaud's disease,orsimilar)pleaseconsultyourdoctorbeforeusingthesesocks.  Checkyourfeetregularlyforreddeningoftheskin.Excessiveheatlevelsoverprolonged periodscanleadtoburns. ②Notforusebychildren Notforusebychildren.Keepthebatteryandelectricalplugsawayfromchildren. ③Socksconditionmayaffectuse Itisnotrecommendedtowearheatedsockswhilesleeping.  Donotchargesocksifyouwillnotbeusingthem. Donotchargesockswhilewet.Donotexposethesockstorainorwaterwhentheyare heatingorcharging. Stopusingtheunitifyoudiscoveranydamagetoconnectingcables,batteries,orotherparts. Youmaycontinuetousethesockswithouttheheatingsystemoncethebatteriesare removed.  Donotinsertanymetalorothersharpobjectsintothesocks,batteries,connectingsockets orplugs,asthiscouldcausedamagetotheunit.  Donotusetheseheatedsocks（2.4GHz）inconjunctionwithavalanchebeacons.Electrically heatedsocksinterferewiththeperformanceofavalanchebeacons,impairingyourabilityto conductasearchorbelocated. ④Batteryusewarning  Pleaseuseonlytheoriginalbatteriesandchargers.Usingproductsubstitutesmaycause accidentaldamage. Donottrytoopenthebatterypack.Donotthrowbatteriesintoanopenfire.Improper handlingofLithium-Ionbatteriesmaycausethemtoexplode. Donotusebatterieswithdamagedprotectivefilm. Donotuseifyounoticeanydeformationorlumpsinthebatterycasing. Donotuseifthebatteryoverheatsduringcharging.  Donotuseifrustorcorrosionisfoundonthebatteryconnectors. Erraticchargingandheatmayspeedupdegradation. 5.USERMANUAL PrecautionsforFirstUse  Fullychargeyourbatteryto100%beforefirstuse.  Supportssingleordualbatterycharging.Dualbatterychargingtimeisabout5.5–6.5hours.  Duringcharging,thebattery'spowerindicator(green)isalwayson.Whenfullycharged,the chargerindicatorturnsfromredtogreen.Pluginthechargerwhenthebatteryisfull,the chargerindicatorisstillgreen. Makesurethebatterypackisproperlyconnectedtothecableinsidethepocketandthe connectorissecureandfreefromlooseconnection.  Fastenthebatterycoverwhenputtingthebatterypackandcablebackintothepocket.  Electricsockshaveleftandrightsides,alwayskeepthebatterypocketontheoutsideofthe calf.  Theone-touchbuttoncontrolandAPPcontrolsystemoftheelectricsocksareupdated simultaneously. Ifthedevicefailstostartnormally,pleaserestarttheBT. MakesureBTisturnedonbeforeusingtheAPP. TemperatureAdjustmentModewithoutAPP ①Poweron:Longpressfor5seconds. ②Adjustthetemperature:Theswitchbuttononthesockisaquicktemperatureadjustment button,whichcanbefreelyswitchedbetweenthreetemperaturelevels.Blueindicateslow temperature,whiteindicatesmediumtemperature,andredindicateshightemperature. ③Shutdown:Longpressfor5secondstostopheating. Ifyouneedtoadjustthetemperature,carefullyadjustitthroughAPP. TemperatureAdjustmentModewithAPPAPPDownloadMethod 1.ScantheQRcodetodownload. 2.Downloadbysearching"Q-thermo"inAppleAppStoreorGoogleAppStore. 1： AllowAPPtouseBTpermission 2： AllowAPPtouselocationpermission 3：ClicktheSettingsbuttontoentertheBTconnectioninterface 4：FINDNEW ①②Clickandconfirmtoconnectsocks.Thecorrespondingsockswillflashbeforeconfirmingthe connection. ③Iftheautomaticscandoesnotmatchthecorrespondingdevice,clicktherefreshbuttonto searchformoredevicestobematched. 5：CONNECTED ①Whenthesockiconturnsred,theconnectionissuccessful.Thebatteryiconshowsthe remainingpower. ②IftheBTcannotbeconnected,pleasecheck:  Thatthebatteryisconnectedtothewire ThattheBTandlocationisturnedon ⑥APPconnectionstatusdescription 7：Selectthesocksyouwanttocontrol（Iconturnsredtoindicateitiscontrolled) ①ClickON/OFFtoturnthepoweronoroff. ②ToggletoCelsiusorFahrenheitbytogglingthe°C/°Fbutton. ⑧TemperatureandTiming 1.Slidetheprogressbartoadjustthetemperature. 2.Timingsetting,upto120min.Whentheslidebarrewindsto0,theAPPstopsrunning. 9:Ifyouwanttocontrolotherseriesproductsofourbrand,clickthecorrespondingiconand repeattheabovestepsaftertheiconturnsred. 10:Clickthe“disconnect”buttontodisconnectBTconnection. Afterdisconnection,youneedtoreconnectmanuallynexttime. 6.HEATGENERATIONTEMPERATUREANDDURATION Theactualtemperaturerangemayvaryduetothedifferenceinenvironments.Thetotal durationandtemperatureinthechartareforreferenceonlyasaguide. 7.APPLICATION 8.SOCKSWASHINGPRECAUTIONS HeatedSocksCleaningProcedure： 1.Disconnectthebatteryfromtheheatedsocksbeforewashing. 2.Removethebattery. 3.Puttheheatedsocksintothecomplimentarylaundrybag(included). 4.Putthesocks(insidethelaundrybag)inthewashingmachineontheregularorgentle washcycle. 5.Donottwistorwringthesocks;letthesocksdrynaturallybyhangingorlyingflat. Note:Besuretowashthesocksinalaundrybagtopreventdamagetotheheatingwireinside thesocksduetovigorousactionofthewashingmachine. 9.BATTERY ①CAREANDSTORAGEOFTHEBATTERY Pleaseuseonlythechargerprovidedbythemanufacturer(9Vcharger). Fullychargethebatterybeforefirstuse. Ifbatterieswillnotbeusedforalongtime,youmustfullychargethebatteriesbefore storage!Chargethematleasteverythreemonthsafterstoragetoprolonglife!  Storeinacoolanddryarea. Temperatureextremesduringstoragewillshortenbatterylife. Keepbatteryconnectors/contactsclea…

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Dikaku Industrial Co.,Limited Agent Authorization Company: Dikaku Industrial Co.,Limited Address: FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Product Name: Heated Socks Trade Mark: N/A Model Number(s): QT-01, QT-02, QT-03, QT-04, QT-05, QT-06 We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022-10-28 Name: Ying Jiang Title: General Manager Assistant Company: Dikaku Industrial Co.,Limited

Dikaku Industrial Co.,Limited Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022-10-28 Subject; Request for Confidentiality FCC ID: 2A8YOQT-01 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description BOM Software Security Requirements Tune up In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name / Title: Ying Jiang / General Manager Assistant Company: Dikaku Industrial Co.,Limited Address: FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Phone: +8615200329668 Fax: +8615200329668 E-Mail: [email protected]

Dikaku Industrial Co.,Limited Responsibility Declaration Letter v1.0 Responsibility Declaration Letter Company name: Dikaku Industrial Co.,Limited Address: FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Product Name: Heated Socks IC: 29522-QT01 FCC ID：2A8YOQT-01 Model(s): QT-01 Model(s) Difference Description: N/A We, [Dikaku Industrial Co.,Limited], hereby acknowledge that all the product information (including all original, drafted, or modified documents) provided to the TCB either by us or our agent or representative(s) for the purposes of FCC&IC certification will meet FCC&IC regulations and requirements; and that any modifications or changes made as a result of TCB review of the documents will be formally implemented into the manufacturing process and product documentation shipped with equipment. We also confirm that all information provided is legitimate and does not contain any false content such as forgery, fabrication, alteration, tampering and concealment. We assume all economic and legal responsibilities in matters that may arise as a result of disclosure on sample products and associated product documentation provided for product certification that may subsequently be found to be a mis-representation of the final product and accompanying documentation when produced, marketed, or sold in the United States, Canada, or anywhere in the world. Sincerely, Signature: Name / Title: Ying Jiang / General Manager Assistant Company: Dikaku Industrial Co.,Limited Address: FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Phone: +8615200329668 Fax: +8615200329668 E-Mail: [email protected]

FCC ID: 2A8YOQT-01 IC: 29522-QT01 Fig. 1 Fig. 2 FCC ID: 2A8YOQT-01 IC: 29522-QT01 Fig. 3 Fig. 4 FCC ID: 2A8YOQT-01 IC: 29522-QT01 Fig. 5 Fig. 6

_____________________________________________________________________________________________________ LABEL AND LOCATION (Size: L2.0cm x 1.0cm) Label Location Heated Socks Model No.: QT-01 Input: DC 9.0V FCC ID: 2A8YOQT-01 IC: 29522-QT01

FCC ID: 2A8YOQT-01 IC: 29522-QT01 Fig. 1 Fig. 2 FCC ID: 2A8YOQT-01 IC: 29522-QT01 Fig. 3 Fig. 4 FCC ID: 2A8YOQT-01 IC: 29522-QT01 Fig. 5 Fig. 6 Antenna

Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong RF Exposure evaluation Report Reference No. .................. : FCC ID. .......................................... : GTS20220926018-1-2 2A8YOQT-01 Compiled by ( position+printed name+signature): File administrators Peter Xiao Supervised by ( position+printed name+signature): Test Engineer Jenny Zeng Approved by ( position+printed name+signature): Manager Jason Hu Date of issue .................................. : Oct.21, 2022 Representative Laboratory Name ....................................................... : Shenzhen Global Test Service Co.,Ltd. Address .......................................... : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ......................... : Dikaku Industrial Co.,Limited Address .......................................... : FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Test specification ........................ : Standard ........................................ : 47CFR §1.1310 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 TRF Originator ............................... : Shenzhen Global Test Service Co.,Ltd. Master TRF .................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description................... : Heated Socks Trade Mark .................................... : N/A Manufacturer ................................. : Dikaku Industrial Co.,Limited Model/Type reference .................... : QT-01 Listed Models ............................... : QT-02, QT-03, QT-04, QT-05, QT-06 Exposure category......................... : General population/uncontrolled environment EUT Type ....................................... : Portable Hardware Version ........................ : V1.2.1 Software Version ........................... : V1.09 Rating ............................................ : DC 9.0V Result ............................................. : PASS Report No.: GTS20220926018-1-2 Page 2 of 10 T E S T R E P O R T Test Report No. : GTS20220926018-1-2 Oct.21, 2022 ______________________________________________________________________________________________ Date of issue Equipment under Test : Heated Socks Model /Type : QT-01 Listed model : QT-02, QT-03, QT-04, QT-05, QT-06 Applicant : Dikaku Industrial Co.,Limited Address : FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Manufacturer : Dikaku Industrial Co.,Limited Address : FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20220926018-1-2 Page 3 of 10 Contents 1. S U M M A R Y .................................................................................. 4 1.1. EUT configuration ....................................................................................................................................... 4 1.2. Product Description .................................................................................................................................... 4 2. T E S T E N V IR O N M E N T ................................................................... 5 2.1. Address of the test laboratory ................................................................................................................... 5 2.2. Test Facility .................................................................................................................................................. 5 2.3. Environmental conditions .......................................................................................................................... 5 2.4. Statement of the measurement uncertainty ............................................................................................. 5 3 . M E T H O D O F M E A S U R EM E N T ......................................................... 6 3.1. Applicable Standard .................................................................................................................................... 6 3.2. Evaluation Method and Limit...................................................................................................................... 6 4. C O N D U C T E D P O W E R R E S U L T S ...................................................... 7 5. M A N U F A C T U R I N G T O L E R ANCE ...................................................... 8 6 . E V A L U A T I O N R E S U L TS ................................................................ 9 6.1. Standalone Evaluation ................................................................................................................................ 9 7. C O N C L U S I O N ............................................................................ 10 Report No.: GTS20220926018-1-2 Page 4 of 10 1. S U M M A R Y 1.1. EUT configuration The following peripheral devices and interface cables were connected during the measurement: ● - supplied by the manufacturer ○ - supplied by the lab ○ Adapter Length (m) : 0.4m Shield : Non-Shielded Detachable …

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2/11 WWW.BDS666.COM 0755-83044319 3216 Chip antenna For Bluetooth / WLAN Applications Dimension (mm) L 3.23 ± 0.20 W 1.66 ± 0.20 T 0.45 ± 0.20 P/N: KH3216E245H0209 3/11 WWW.BDS666.COM 0755-83044319 Part Number Information KH 3216 E 245 H 02 09 A B C D E F G A Product Series Antenna B Dimension L x W 3.2 x 1.6mm (±0.2mm) C Material High K material D Working Frequency 2.4 ~ 2.5GHz E Feeding mode PIFA & Single Feeding F Antenna type Type = 02 G Mark type Type = 09 1. Electrical Specification Remark : Bandwidth & Peak Gain was measured under evaluation board of next page Specification Part Number KH3216E245H0209 Central Frequency 2450 MHz Bandwidth 120 (Min.) MHz Return Loss -6.5 (Max) dB Peak Gain 1.71 dBi Impedance 50 Ohm Operating Temperature -40～+110 °C Maximum Power 4 W Resistance to Soldering Heats 10 ( @ 260°C) sec. Polarization Linear Azimuth Beamwidth Omni-directional Termination Ni / Au (Leadless) 4/11 WWW.BDS666.COM 0755-83044319 2. Recommended PCB Pattern Evaluation Board Dimension 2 nd Evaluation Board Dimension Suggested Matching Circuit 重要資訊 : 匹配元件建議使用精準度高的電感±0.1~0.3nH、電容±0.1pF 5/11 WWW.BDS666.COM 0755-83044319 Layout Dimensions in Clearance area( Size=5.9*5.0mm) FootPrint (Unit : mm) ◆ 2 nd Layout Dimensions in Clearance area( Size=8.0*3.0mm) Matching Circuit 50 ohm transmission Line 6/11 WWW.BDS666.COM 0755-83044319 3. Measurement Results Return Loss 7/11 WWW.BDS666.COM 0755-83044319 Radiation Pattern Efficiency Peak Gain Directivity 2400MHz 77.26 % 1.63 dBi 2.75 dBi 2450MHz 79.88 % 1.71 dBi 2.68 dBi 2500MHz 77.98 % 1.67 dBi 2.75 dBi Chamber Coordinate System Z Y X 8/11 WWW.BDS666.COM 0755-83044319 4.Reliability and Test Condictions ITEM REQUIREMENTS TEST CONDITION Solderability 1. Wetting shall exceed 90% coverage 2. No visible mechanical damage Pre-heating temperature:150°C/60sec. Solder temperature:230±5°C Duration:4±1sec. Solder:Sn-Ag3.0-Cu0.5 Flux for lead free: rosin Solder heat Resistance 1. No visible mechanical damage 2. Central Freq. change :within ± 6% 10 ± 0.5 sec. 60 sec . . T E M P ( °C ) 150 °C 2 6 0 °C Pre-heating temperature:150°C/60sec. Solder temperature:260±5°C Duration:10±0.5sec. Solder:Sn-Ag3.0-Cu0.5 Flux for lead free: rosin Component Adhesion (Push test) 1. No visible mechanical damage The device should be reflow soldered(230±5°C for 10sec.) to a tinned copper substrate A dynometer force gauge should be applied the side of the component. The device must with-ST-F 0.5 Kg without failure of the termination attached to component. Component Adhesion (Pull test) 1. No visible mechanical damage Insert 10cm wire into the remaining open eye bend ,the ends of even wire lengths upward and wind together. Terminal shall not be remarkably damaged. Thermal shock 1. No visible mechanical damage 2. Central Freq. change :within ±6% Phase Temperature(°C) Time(min) 1 +110±5°C 30±3 2 Room Temperature Within 3sec 3 -40±2°C 30±3 4 Room Temperature Within 3sec +110°C=>30±3min -40°C=>30±3min Test cycle:10 cycles The chip shall be stabilized at normal condition for 2~3 hours before measuring. Resistance to High Temperature 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3. No disconnection or short circuit. Temperature: +110±5°C Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. Resistance to Low Temperature 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3. No disconnection or short circuit. Temperature:-40±5°C Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. Humidity 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3. No disconnection or short circuit. Temperature: 40±2°C Humidity: 90% to 95% RH Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. 4±1 sec. 60sec TEMP (°C) 150°C 230°C 9/11 WWW.BDS666.COM 0755-83044319 5.Soldering and Mounting Mildly activated rosin fluxes are preferred. The minimum amount of solder can lead to damage from the stresses caused by the difference in coefficients of expansion between solder, chip and substrate. The terminations are suitable for all wave and re-flow soldering systems. If hand soldering cannot be avoided, the preferred technique is the utilization of hot air soldering tools. Recommended temperature profiles for re-flow soldering in Figure 1. Products attachment with a soldering iron is discouraged due to the inherent process control limitations. In the event that a soldering iron must be employed the following precautions are recommended. ‧Preheat circuit and products to 150°C ‧Never contact the ceramic with the iron tip ‧Use a 20 watt soldering iron with tip diameter of 1.0mm ‧280°C tip temperature (max) ‧1.0mm tip diameter (max) ‧Limit soldering time to 3 sec. SOLDERING COOLING NATURAL PRE-HEATING TEMPERATURE(°C) 60~120 s 10s max. 30~60s 250~260 230 180 150 TIME(sec.) Reflow Soldering SOLDERING COOLING NATURAL PRE-HEATING TEMPERATURE(°C) within 3s Gradual cooling 150 TIME(sec.) Iron Soldering Over 60s 350 300 10/11 WWW.BDS666.COM 0755-83044319 6.Packaging Information Tape Specification: Reel Specification: (7’’, Φ180 mm) Tape Width(mm) A(mm) B(mm) C(mm) D(mm) Chip/Reel(pcs) 8 9.0±0.5 60±2 13.5±0.5 178±2 3000 11/11 WWW.BDS666.COM 0755-83044319 7.Storage and Transportation Information Storage Conditions To maintain the solderability of terminal electrodes: 1. Temperature and humidity conditions: -10~ 40°C and 30~70% RH. 2. Recommended products should be used within 6 months from the time of delivery. 3. The packaging material should be kept where no chlorine or sulfur exists in the air. Transportation Conditions 1. Products should be handled with care to avoid damage or contamination from perspiration and skin oils. 2. The use of tweezers or vacuum pick up is strongly recommended for individual components. 3. Bulk handling should ensure that abrasion and mechanical shock are minimized.

Case No. : GTS20220926018-1-1& GTS20220926018-1-3 Ambient Condition: 26 °C, 47 %RH, Atmos100.1Kpa, Test Date: 2022.10.11 Test Engineer: Jenny zeng Appendix A.1: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE Ant1 2402 0.636 2401.708 2402.344 0.5 PASS 2440 0.660 2439.692 2440.352 0.5 PASS 2480 0.652 2479.680 2480.332 0.5 PASS Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 BLE_Ant1_2480 Appendix A.2: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE Ant1 2402 1.0077 2401.515 2402.523 --- --- 2440 1.0334 2439.505 2440.538 --- --- 2480 1.0363 2479.499 2480.536 --- --- Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 BLE_Ant1_2480 Appendix A.3: Maximum conducted output power Test Result Peak TestMode Antenna Frequency[MHz] Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict BLE Ant1 2402 0.57 ≤30 PASS 2440 -0.49 ≤30 PASS 2480 -0.69 ≤30 PASS Appendix A.4: Maximum power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE Ant1 2402 -15.09 ≤8.00 PASS 2440 -16.09 ≤8.00 PASS 2480 -16.50 ≤8.00 PASS Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 BLE_Ant1_2480 Appendix A.5: Band edge measurements Test Result TestMode Antenna ChName Frequency[MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE Ant1 Low 2402 0.20 -39.78 ≤-19.8 PASS High 2480 -1.08 -46.85 ≤-21.08 PASS Test Graphs BLE_Ant1_Low_2402 BLE_Ant1_High_2480 Appendix A.6: Conducted Spurious Emission Test Result TestMode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict BLE Ant1 2402 Reference -0.73 -0.73 --- PASS 30~1000 -0.73 -60.12 ≤-20.73 PASS 1000~26500 -0.73 -45.89 ≤-20.73 PASS 2440 Reference -1.50 -1.50 --- PASS 30~1000 -1.50 -60.06 ≤-21.5 PASS 1000~26500 -1.50 -30.98 ≤-21.5 PASS 2480 Reference -1.55 -1.55 --- PASS 30~1000 -1.55 -60.1 ≤-21.55 PASS 1000~26500 -1.55 -47.42 ≤-21.55 PASS Test Graphs BLE_Ant1_2402_0~Reference BLE_Ant1_2402_30~1000 BLE_Ant1_2402_1000~26500 BLE_Ant1_2440_0~Reference BLE_Ant1_2440_30~1000 BLE_Ant1_2440_1000~26500 BLE_Ant1_2480_0~Reference BLE_Ant1_2480_30~1000 BLE_Ant1_2480_1000~26500

Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ..................... : FCC ID............................................. : GTS20220926018-1-1 2A8YOQT-01 Compiled by ( position+printed name+signature) . : File administrators Peter Xiao Supervised by ( position+printed name+signature) . : Test Engineer Jenny Zeng Approved by ( position+printed name+signature) . : Manager Jason Hu Date of issue .................................... : Oct.21, 2022 Representative Laboratory Name . : Shenzhen Global Test Service Co.,Ltd. Address ............................................ : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ............................ : Dikaku Industrial Co.,Limited Address ............................................ : FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Test specification ........................... : Standard ........................................... : FCC Part 15.247 TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ...................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : Heated Socks Trade Mark ....................................... : N/A Manufacturer .................................... : Dikaku Industrial Co.,Limited Model/Type reference ...................... : QT-01 Listed Models .................................. : N/A Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version ............................ : V1.2.1 Software Version .............................. : V1.09 Rating ............................................... : DC 5.0V by Adapter Result ............................................... : PASS Report No.: GTS20220926018-1 Page 2 of 31 T E S T R E P O R T Test Report No. : GTS20220926018-1-1 Oct.21, 2022 ______________________________________________________________________________________________ Date of issue Equipment under Test : Heated Socks Model /Type : QT-01 Listed model : N/A Applicant : Dikaku Industrial Co.,Limited Address : FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Manufacturer : Dikaku Industrial Co.,Limited Address : FLAT/RM 7022 BLK D 7/F TAK, WING INDUSTRY BLDG 3 TSUN WEN, ROAD TUEN MUN NT, HONG KONG, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20220926018-1 Page 3 of 31 Contents 1. TEST STANDARDS ......................................................................................................................................... 4 2. SUMMARY ....................................................................................................................................................... 5 2.1. General Remarks ................................................................................................................................... 5 2.2. Product Description ................................................................................................................................ 5 2.3. Equipment Under Test ........................................................................................................................... 6 2.4. Short description of the Equipment under Test (EUT) ........................................................................... 6 2.5. EUT operation mode .............................................................................................................................. 6 2.6. Block Diagram of Test Setup ................................................................................................................. 7 2.7. EUT Exercise Software .............…

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