A4RGUIK2Interactive Device

Regulatory Guide for GUIK2 Safety, Warranty & Regulatory Guide for Google GUIK2 This booklet provides important safety, regulatory, and warranty information that you should read before using your GUIK2. You can find an online version of this document at g.co/nest/legal GUIK2 and your Family and Friends: ​If you make your GUIK2 available for others to use, please be sure to let them know that their interactions may be stored by Google. More information about this is available at g.co/home/guests. In the link, you can also find information and tips about others being able to access information you make available to GUIK2. WARNING: HEALTH AND SAFETY INFORMATION Basic Safety​: To avoid damaging your device, accessories or any connected devices, and to reduce the risk of personal injury, discomfort, property damage or other potential hazards, follow the precautions below and those found in the GUIK2’s Safety, Warranty & Regulatory guide at ​g.co/nest/legal • Handle your GUIK2 with care. You may damage the device if you disassemble, drop, bend, burn, crush or puncture it. Do not use your device if the screen is cracked or broken. Do not expose your GUIK2 to liquids, which can cause a short circuit and overheating. If it gets wet, do not attempt to dry it using an external heat source. Do not use your GUIK2 in the bathroom. Do not expose your GUIK2 to direct sunlight. GUIK2 and its power adapter is designed to work best in ambient temperatures between 32° to 95° F (0° to 35° C) and should be stored between ambient temperatures of -4° and 140° F (-20° and 60° C). Do not expose GUIK2 to temperatures above 140° F (60° C) as this may damage the product or pose a risk of fire. • Be sure the power adapter and device are well ventilated when in use. Using damaged cables or power adapters or using them when moisture is present can cause fire, electric shock, injury, 1 or damage to the device or other property. Make sure the power adapter is plugged into a socket near the device and is easily accessible. This product is intended for use with a certified Limited Power Source (LPS) rated 14 Volts DC, maximum 1.1 Amp. Only power your GUIK2 with the included power adapter and cable or compatible accessories. Failure to use compatible accessories can cause fire, electric shock, injury, or damage to the device and its accessories. • When disconnecting the power adapter from a power outlet, pull on the adapter, never on the cable. Do not twist or pinch the cable, and do not force a connector into a port. • Contact customer service and do not use your GUIK2 if it isn’t working properly or has been damaged. Proper Handling and Usage Follow these guidelines when cleaning your GUIK2: Care and cleaning Unplug the device and adapter before cleaning, during lightning storms, or when unused for extended periods of time. Use a clean, soft, and dry cloth to clean the device and power adapter. Do not use any chemical detergent, powder, or other chemical agents (such as alcohol or benzene) to clean GUIK2. GUIK2 Functions GUIK2 and its functions are not designed or intended for use in the diagnosis of disease or other conditions, or in the cure, monitoring, mitigation, treatment, or prevention of disease or other conditions. Child Safety This device is not a toy. GUIK2 may come with small parts, plastic elements, and parts with sharp edges that may cause an injury or create a choking hazard. Children have strangled on cords and cables. Keep the cords and cables out of the reach of children (more than 3 feet / 1 meter away) and do not allow them to play with the device and its accessories. They could hurt themselves or others, or could accidentally damage the device. Consult a physician immediately if small parts are swallowed. Magnetic Fields Avoid placing any media containing magnets or sensitive to magnetism, such as credit cards, bank cards, audio/video tapes, or magnetic memory devices, near this GUIK2 or its charging cable because you may lose information stored on those media. Media containing information sensitive to magnets should be kept at least 2 inches (5 cm) away from this GUIK2. Radio Frequency Exposure 2 Maintain a distance of 20 cm (8 inches) from your body to be consistent with how the device is tested for compliance with RF exposure requirements. Service & support For online help and support, visit ​g.co/nest/help To reach an expert, visit ​g.co/nest/contact Regulatory Information Regulatory certification and compliance marks specific to GUIK2 can be found on the device under System settings > Regulatory labels​. Additional regulatory and environmental information can be found at g.co/hub/legal. Manufacturer address: Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States. EMC Compliance Important: This device and power adapter have demonstrated Electromagnetic Compatibility (EMC) compliance under conditions that included the use of compliant peripheral devices and shielded cables between system components. It is important that you use compliant peripheral devices and shielded cables between system components to reduce the possibility of causing interference to radios, televisions, and other electronic devices. Changes or modifications to this product not authorized by Google could void the electromagnetic compatibility (EMC) and wireless compliance and negate your authority to operate the product. FCC Regulatory Compliance 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. 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 …

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1600 Amphitheatre Parkway Mountain View, CA 94043 USA Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 July 1, 2020 Subject:Request for Confidentiality FCC ID:A4RGUIK2 To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 C.F.R. §§ 0.457, 0.459), we request that the Commission withhold the following attachments as confidential documents from public disclosure indefinitely. Schematic and Block Diagrams Theory of Operation with Antenna Spec In support of this request, we provide the following information: 1.Identificationofthespecificinformationforwhichconfidentialtreatmentissought(§0.459(b)(1)): Werequestthatalloftheinformationcontainedintheabove-referencedexhibitstothecertification application be withheld from routine public disclosure. 2.IdentificationoftheCommissionproceedinginwhichtheinformationwassubmittedora descriptionofthecircumstancesgivingrisetothesubmission(§0.459(b)(2)):Thematerialisbeing submitted in connection with our certification application for the above-captioned FCC ID​. 3.Explanationofthedegreetowhichtheinformationiscommercial,orfinancialorcontainsatrade secretorisprivileged(§0.459(b)(3)):Themarketforthetechnologythatisthesubjectofthe certificationapplicationishighlycompetitive,withnumerouscompaniescompetingforthebusinessof potentialcustomers.Werecompetitorstobecomeawareofthefactssetforthintheabove-referenced exhibitstotheapplicationatthistime,itcouldhaveanadverseimpactonourcompetitivestandingand depriveusofthemarketplacebenefitweotherwisemightachievebyvirtueofhavingtheproduct availablebeforeothercompetitors.Ifanyoftheinformationforwhichconfidentialtreatmentissought wasmadepubliclyavailable,competitorscouldreasonablydeterminethescopeandstatusofour activities. 4.Explanationofthedegreetowhichtheinformationconcernsaservicethatiscompetitive(§ 0.459(b)(4)):​Thetechnologythatisthesubjectofthecertificationapplicationissubjecttointense competitionfromothermanufacturersandserviceprovidersthataredevelopingcompetingservicesand technology. 5.Explanationofhowdisclosureoftheinformationcouldresultinsubstantialcompetitiveharm(§ 0.459(b)(5)):Asnotedabove,wereourcompetitorstobecomeawareofthefactssetforthinthe 1 above-referencedexhibitstotheapplication,itcouldhaveanadverseimpactonourcompetitive standinganddepriveusofthemarketplacebenefitweotherwisewouldachievebyvirtueofhavingthe product available before other providers. 6.Identificationofanymeasurestakenbytherequestingpartytopreventunauthorizeddisclosure(§ 0.459(b)(6)):Theinformationcontainedintheabove-referencedexhibitstothecertificationapplication hasbeenstrictlycontrolledbyus,withdistributionlimitedtointernaluseonlyandforthespecific purpose of conducting research, development, and testing of the technology. 7.Identificationofwhethertheinformationisavailabletothepublicandtheextentofanyprevious disclosuresoftheinformationtoanythirdparties(§0.459(b)(7)):Theinformationthatwerequest bemaintainedasconfidentialisnotavailablepublicly.Theinformationhasbeenprotectedandkept confidential by limiting external contacts to privileged and confidential communications. 8.Justificationoftheperiodduringwhichthesubmittingpartyassertsthatmaterialshouldnotbe availableforpublicdisclosure(§0.459(b)(8)):Giventhecompetitivenatureofthemarketplace,any disclosurethatwehavedevelopedthetechnologydiscussedintheabove-referencedexhibitstothe certificationapplicationwouldharmourcompetitiveposition.Theinformationsubjecttothisrequest for confidentiality should not be made available for public disclosure at any time. In addition, pursuant to Public Notice DA 04-1705, and in order to comply with the marketing regulations in 47 C.F.R. §2.803 and the importation rules in 47 C.F.R. §2.1204 while ensuring that business-sensitive information remains confidential until the actual marketing of newly authorized devices, we also request that the Commission grant temporary confidential treatment and not release the following attachments for routine public disclosure until 180 days after the grant date. External and Internal Photos Test Setup Photos User Manual It is our understanding that test measurement reports and correspondence during the certification review process cannot be granted confidential treatment, and such information will be available for public review once the grant of equipment authorization is issued. Sincerely yours, ___________________________ Gary Wong Compliance Technical Program Manager Google LLC 1600 Amphitheatre Parkway Mountain View CA 94043 T: 650-253-0000 2

1600 Amphitheatre Parkway Mountain View, CA 94043 USA July 1, 2020 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: A4RGUIK2 To Whom It May Concern: I, the undersigned, hereby authorize Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch (BV CPS Taoyuan Branch) of Taiwan (BV) to act on Google LLC’s (Google) behalf in all manners relating to the above-captioned application for equipment authorization, including signing of all documents relating to this matter. Any and all acts carried out by BV on Google’s behalf shall have the same effect as acts of Google’s own. I,theundersigned,herebycertifythatGoogleisnotsubjecttoadenialoffederalbenefits, includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21 U.S.C. ​§​ ​853(a). In authorizing BV as Google’s representative, Google recognizes that it is still responsible for: a) complying with the relevant provisions of the certification program; b)making all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c)making claims regarding certification only in respect of the scope for which certification has been granted; d)not using the product certification in such a manner as to bring BV into disrepute and not making any statement regarding the product certification that BV may consider misleading or unauthorized; e)upon suspension or cancellation of certification, discontinuing the use of all advertising matter that contains any reference thereto and return any certification documents as required by BV; f)using the certification only to indicate that the products are certified as being in conformity with specified standards; g)endeavoring to ensure that no certificate or report or any part thereof is used in a misleading manner; h)ensuring that any reference to the product certification in communication media such as documents, brochures or advertising, complies with BV’s requirements; i)keeping a record of all complaints made known to Google relating to the product’s compliance with the requirements of the relevant standard and making these records available to the applicable authorities when requested; j)taking appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; and k)documenting the actions taken. This authorization is valid until further written notice from Google. Sincerely Yours, Gary Wong Compliance Technical Program Manager Google LLC 1600 Amphitheatre Parkway Mountain View CA 94043 T: 650-253-0000 2

Reference No.: 200427C09 Page 1 of 6 CONSTRUCTION PHOTOS OF EUT Model: GUIK2 Reference No.: 200427C09 Page 2 of 6 Reference No.: 200427C09 Page 3 of 6 Reference No.: 200427C09 Page 4 of 6 Reference No.: 200427C09 Page 5 of 6 Reference No.: 200427C09 Page 6 of 6

Label sample The instruction on how to access the information is in the box in the Safety/Warranty/Regulatory booklet, and in the online version of the Safety/Warranty/Regulatory booklet: “Regulatory information, certification, and compliance marks can be found with the following steps from the Home screen:​ System settings > Regulatory labels​.”

E-label Declaration FCC ID: A4RGUIK2 FCC §2.935 Electronic labeling of radiofrequency devices. (a) Any radiofrequency device equipped with an integrated electronic display screen, or a radiofrequency device without an integrated screen that can only operate in conjunction with a device that has an electronic display screen, may display on the electronic display the FCC Identifier, any warning statements, or other information that the Commission’s rules would otherwise require to be shown on a physical label attached to the device. Information On e-label In Manual FCC ID number Yes No 15.19 Statement ​(“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.”) No Yes Class B Digital Device user manual statement No Yes Caution to the user that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment No Yes Image of the e-label screen is provided below: (b) Devices displaying their FCC Identifier, warning statements, or other information electronically must make this information readily accessible on the electronic display. Users must be provided with prominent instructions on how to access the information in the operating instructions, inserts in packaging material, or other easily accessible format at the time of purchase. The access instructions may also be provided via the product-related website, if such a web site exists; the packaging material must provide specific instructions on how to locate the website information, and a copy of these instructions must be included in the application for equipment certification. 1 The instruction on how to access the information is in the box in the Safety/Warranty/Regulatory booklet, and in the online version of the Safety/Warranty/Regulatory booklet: “Regulatory information, certification, and compliance marks can be found with the following steps from the Home screen:​ System settings > Regulatory labels​.” (c) Devices displaying their FCC Identifier, warning statements, or other information electronically must permit access to the information without requiring special codes, accessories or permissions and the access to this information must not require more than three steps from the device setting menu. The number of steps does not include those steps for use of screen locks, passcodes or similar security protection designed to control overall device access. No special accessories or supplemental plug-ins are required to access the information. To access the e-label information, in the device from the Home screen: Select: System settings > Regulatory labels (d) The electronically displayed FCC Identifier, warning statements, or other information must be displayed electronically in a manner that is clearly legible without the aid of magnification; Yes (e) The necessary label information must be programmed by the responsible party and must be secured in such a manner that third-parties cannot modify it. The e-label information is pre-programmed by the grantee. The user cannot modify the e-label information. (f) Devices displaying their FCC Identifier, warning statements, or other information electronically must also be labeled, either on the device or its packaging, with the FCC Identifier or other information (such as a model number and identification of a webpage that hosts the relevant regulatory information) that permits the devices to be identified at the time of importation, marketing, and sales as complying with the FCC’s equipment authorization requirements. Devices can be labeled with a stick-on label, printing on the packaging, a label on a protective bag, or by similar means. Any removable label shall be of a type intended to survive normal shipping and handling and must only be removed by the customer after purchase. The FCC ID is present on the product packaging. 2

Reference No.: 200427C09 Page 1 of 8 CONSTRUCTION PHOTOS OF EUT Model: GUIK2 Reference No.: 200427C09 Page 2 of 8 Reference No.: 200427C09 Page 3 of 8 Reference No.: 200427C09 Page 4 of 8 Reference No.: 200427C09 Page 5 of 8 Reference No.: 200427C09 Page 6 of 8 Reference No.: 200427C09 Page 7 of 8 Reference No.: 200427C09 Page 8 of 8

Report No.: SA200427C09 R1 Page No. 1 / 6 Report Format Version: 6.1.1 Cancels and replaces the report no. : SA200427C09 dated on Jun. 12, 2020 RF Exposure Report Report No.: SA200427C09 R1 FCC ID: A4RGUIK2 Model Name: GUIK2 Received Date: Apr. 27, 2020 Date of Evaluation: Jun. 10, 2020 Issued Date: Jan. 06, 2021 Applicant: Google LLC Address: 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Lin Kou Laboratories Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan Test Location: No.19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City 33383, Taiwan FCC Registration / Designation Number: 788550 / TW0003 This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. The report must not be used by the client to claim product certification, approval, or endorsement by TAF or any government agencies. Report No.: SA200427C09 R1 Page No. 2 / 6 Report Format Version: 6.1.1 Cancels and replaces the report no. : SA200427C09 dated on Jun. 12, 2020 Table of Contents Release Control Record .................................................................................................................................. 3 1 Certificate of Conformity ...................................................................................................................... 4 2 RF Exposure .......................................................................................................................................... 5 2.1 Limits for Maximum Permissible Exposure (MPE) .............................................................................. 5 2.2 MPE Calculation Formula ................................................................................................................... 5 2.3 Classification ....................................................................................................................................... 5 2.4 Antenna Gain ...................................................................................................................................... 5 2.5 Calculation Result of Maximum Conducted Power ............................................................................. 6 Report No.: SA200427C09 R1 Page No. 3 / 6 Report Format Version: 6.1.1 Cancels and replaces the report no. : SA200427C09 dated on Jun. 12, 2020 Release Control Record Issue No. Description Date Issued SA200427C09 Original Release Jun. 12, 2020 SA200427C09 R1 Revised frequency of 60GHz Tx Transmitter Jan. 06, 2021 Report No.: SA200427C09 R1 Page No. 4 / 6 Report Format Version: 6.1.1 Cancels and replaces the report no. : SA200427C09 dated on Jun. 12, 2020 1 Certificate of Conformity Product: Interactive Device Test Model: GUIK2 Sample Status: Engineering Sample Applicant: Google LLC SN: 1J365004810040204Q00135(MLB SN) SEM000061016 (FATP SN) Date of Evaluation: Jun. 10, 2020 Standards: FCC Part 2 (Section 2.1091) References Test Guidance : KDB 447498 D01 General RF Exposure Guidance v06 IEEE C95.3 -2002 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s RF characteristics under the conditions specified in this report. Prepared by : , Date: Jan. 06, 2021 Gina Liu / Specialist Approved by : , Date: Jan. 06, 2021 Dylan Chiou / Senior Project Engineer Report No.: SA200427C09 R1 Page No. 5 / 6 Report Format Version: 6.1.1 Cancels and replaces the report no. : SA200427C09 dated on Jun. 12, 2020 2 RF Exposure 2.1 Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (minutes) Limits For General Population / Uncontrolled Exposure 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f 2 )* 30 30-300 27.5 0.073 0.2 30 300-1500 ... ... f/1500 30 1500-100,000 ... ... 1.0 30 f = Frequency in MHz ; *Plane-wave equivalent power density 2.2 MPE Calculation Formula Pd = (Pout*G) / (4*pi*r 2 ) where Pd = power density in mW/cm 2 Pout = output power to antenna in mW G = gain of antenna in linear scale pi = 3.1416 r = distance between observation point and center of the radiator in cm 2.3 Classification The antenna of this product, under normal use condition, is at least 20cm away from the body of the user. So, this device is classified as Mobile Device. 2.4 Antenna Gain Antenna Type Antenna Gain (dBi) PIFA 2.4 G WLAN / BT 5G WLAN Thread 5180~5720 MHz 5745~5825 MHz 4.3 4.0 4.8 3.0 Integral Microstrip…

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Report No.: RF200427C09-4 R1 Page No. 1 / 163 Report Format Version:6.1.2 Cancels and replaces the report no. : RF200427C09-4 dated on Jun. 12, 2020 FCC Test Report Report No.: RF200427C09-4 R1 FCC ID: A4RGUIK2 Model Name: GUIK2 Received Date: Apr. 27, 2020 Test Date: May 21 ~ Jun. 02, 2020 Issued Date: Jun. 30, 2020 Applicant: Google LLC Address: 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Lin Kou Laboratories Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan Test Location: No.19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City 33383, Taiwan FCC Registration / Designation Number: 788550 / TW0003 This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. The report must not be used by the client to claim product certification, approval, or endorsement by TAF or any government agencies. Report No.: RF200427C09-4 R1 Page No. 2 / 163 Report Format Version:6.1.2 Cancels and replaces the report no. : RF200427C09-4 dated on Jun. 12, 2020 Table of Contents Release Control Record .................................................................................................................................. 4 1 Certificate of Conformity ........................................................................................................................... 5 2 Summary of Test Results ........................................................................................................................... 6 2.1 Measurement Uncertainty ..................................................................................................................... 6 2.2 Modification Record .............................................................................................................................. 6 3 General Information ................................................................................................................................... 7 3.1 General Description of EUT .................................................................................................................. 7 3.2 Description of Test Modes ..................................................................................................................... 9 3.2.1 Test Mode Applicability and Tested Channel Detail ................................................................... 11 3.3 Duty Cycle of Test Signal .................................................................................................................... 13 3.4 Description of Support Units ............................................................................................................... 14 3.4.1 Configuration of System under Test ......................................................................................... 14 3.5 General Description of Applied Standards and References ............................................................... 14 4 Test Types and Results ............................................................................................................................ 15 4.1 Radiated Emission and Bandedge Measurement .............................................................................. 15 4.1.1 Li mits of Radiated Emission and Bandedge Measurement ..................................................... 15 4.1.2 Test Instruments ....................................................................................................................... 17 4.1.3 Test Procedures ........................................................................................................................ 18 4.1.4 Deviation from Test Standard ................................................................................................... 18 4.1.5 Test Setup ................................................................................................................................. 19 4.1.6 EUT Operating Conditions ........................................................................................................ 20 4.1.7 Test Results .............................................................................................................................. 21 4.2 Conducted Emission Measurement ................…

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