2ABXLT1801AWireless Transceiver

US.: 1900 S. Norfolk St., Suite 310, San Mateo, CA 94403 || AUS: Level 12, 680 George Street, Sydney, NSW 2000 Phone: +1 (866) 277-2233 || Fax: 1(415) 727-4196 || [email protected] Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Date: May 6, 2024 Subject: Certifications concerning “covered” equipment pursuant to Part 2.911(d)(5)(i) and (ii) To whom it may concern, [Life 360, Inc.] (“the applicant”) certifies that the equipment [FCC ID: 2ABXLT1801A] for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. [Life 360, Inc.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, ________________________ Name: Sandor Kiss Title: Sr. Director Manufacturing Operations E-mail: [email protected] DocuSign Envelope ID: 45A0E4FA-E79E-4437-99EE-AEFAD32DFCED

US.: 1900 S. Norfolk St., Suite 310, San Mateo, CA 94403 || AUS: Level 12, 680 George Street, Sydney, NSW 2000 Phone: +1 (866) 277-2233 || Fax: 1(415) 727-4196 || [email protected] Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Certification designating a U.S. agent for service of process pursuant to Part 2.911(d)(7) To whom it may concern, [Life 360, Inc., Grantee Code 2ABXL] (“the applicant”) as required by section 2.911(d)(7), will also serve as the agent for service of process for the above referenced FCC Grantee Code. The service of process includes, but is not limited to, delivery of any correspondence, notices, orders, decisions, and requirements of administrative, legal, or judicial process related to Commission proceedings. The applicant acknowledges that they will maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission- related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges their responsibility to inform the FCC whenever the following agent information changes. Company Name: Life 360, Inc. Company US Address: 1900 S. NORFOLK ST SUITE 310 San Mateo CA United States 94403 Contact Person: Sandor Kiss Email: [email protected] Telephone number: 4159029629 FRN: 0023398456 Sincerely yours, Signed by the Applicant Name: Sandor Kiss Title: Sr. Director Manufacturing Operations Email: [email protected] Date: May 6, 2024 DocuSign Envelope ID: 45A0E4FA-E79E-4437-99EE-AEFAD32DFCED

US.: 1900 S. Norfolk St., Suite 310, San Mateo, CA 94403 || AUS: Level 12, 680 George Street, Sydney, NSW 2000 Phone: +1 (866) 277-2233 || Fax: 1(415) 727-4196 || [email protected] Date: May 6, 2024 FCC Laboratory 7435 Oakland Mills Rd Columbia MD 21046 Subject: Request for Confidentiality FCC ID: 2ABXLT1701N FCC ID: 2ABXLT1801A FCC ID: 2ABXLT1901A FCC ID: 2ABXLT2101N To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission’s rules (47CFR§§0.457, 0.459), we are requesting the Commission to withhold the following documents from public disclosure indefinitely.  Schematic Diagram  Block Diagram  Operational Description Above mentioned documents which contain 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. In additional to above mentioned documents, pursuant to Public Notice DA 04-1705 of the Commission’ s policy, in order to comply with the marketing regulations in 47 CFR §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we are requesting the Commission to withhold the following documents for 180 days after the grant of equipment authorization is issued:  External Photos  Internal Photos  Test Setup Photos  User Manual DocuSign Envelope ID: 45A0E4FA-E79E-4437-99EE-AEFAD32DFCED US.: 1900 S. Norfolk St., Suite 310, San Mateo, CA 94403 || AUS: Level 12, 680 George Street, Sydney, NSW 2000 Phone: +1 (866) 277-2233 || Fax: 1(415) 727-4196 || [email protected] It is our understanding that all measurement test reports, FCC ID label format cannot be granted as confidential documents and that information will be available for public review once the grant of equipment authorization is issued. Best Regards, _______________________ Name: Sandor Kiss Title: Sr. Director Manufacturing Operations E-mail: [email protected] DocuSign Envelope ID: 45A0E4FA-E79E-4437-99EE-AEFAD32DFCED

US.: 1900 S. Norfolk St., Suite 310, San Mateo, CA 94403 || AUS: Level 12, 680 George Street, Sydney, NSW 2000 Phone: +1 (866) 277-2233 || Fax: 1(415) 727-4196 || [email protected] FCC Agent Authorization Date: May 6, 2024 To whom it may concern, Life 360, Inc. hereby authorize Sporton International Inc. to act on our behalf in all matters relating to applications for FCC equipment authorization, including the signing of all documents relating to these matters. Any and all acts carried out by Sporton International Inc. on our behalf shall have the same effect as acts of our own. We also hereby certify that neither the applicant nor any party to the application is subject to a denial of Federal benefits that includes FCC benefits pursuant to section 5301 of the Anti-Drug Abuse Act of 1988. 21 U.S.C. 862. This authorization is limited to the products of as following: FCC ID: 2ABXLT1701N FCC ID: 2ABXLT1801A FCC ID: 2ABXLT1901A FCC ID: 2ABXLT2101N This authorization is valid until further written notice from Life 360, Inc. Sincerely, ________________________ Name: Sandor Kiss Title: Sr. Director Manufacturing Operations E-mail: [email protected] DocuSign Envelope ID: 45A0E4FA-E79E-4437-99EE-AEFAD32DFCED

E-Label Information A.Information to be displayed 1.The information that will be displayed on the e-label and information that will remain in the user manual is shown below: Information on E-label In Manual FCC ID number Yes No FCC logo Yes Yes 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 IC ID Model Yes No I mages of the e-label screen are provided below: B. Access to the required information on the e-label 1. Users must be able to access the regulatory information without requiring special access codes or permissions, and in all cases the information must be accessible in no more than three steps from a product’s main or home menu. The actual steps are: To access the e-label information, in the device, Choose:Tap on Tiled item (on Tiles page) > More Options > Device Details FCC ID & IC ID & NCC ID No special access codes or permissions are required to go through the above steps beyond entering a user-defined password to protect against unauthorized access to the device. 2. Instructions must be provided with the product at the time of purchase, in the user manual, operating instructions, packaging material, quick guide pamphlet, etc. Alternatively, a product- related website is permitted, if a reference (URL) to obtain the website information is provided at the time of purchase in the user manual, operating instructions, packaging material, quick guide pamphlet, etc. The information to the user is provided in the user manual. 3. Products must not require special accessories or supplemental plug-ins (e.g., the installation of a SIM/USIM card) to access the information. Access to regulatory information must be provided without special codes, accessories, or permissions beyond the normal security protection to unlock the screen, sign-in page, or overall product access. The devices do not require special code, accessories or supplemental plug-ins to access the information. 4. The FCC ID, warning statements, or other information must be displayed electronically in a manner that is clearly legible without the aid of magnification. Yes, it is clearly legible without the aid of magnification. 5. Both regulatory information and dedicated exclusive application(s) or script(s) must be secured and implemented in a factory-set- unalterable format. The regulatory information must be capable of being retrieved and displayed locally, and under the control of the end user in possession of the product. The method must be secure, such that the application or script ensures that the regulatory information correctly displayed. Yes, it is secured and the user cannot modify it. C. Labeling for Importation and Purchasing 1. When e-labeling is used, a physical temporary label is also required on the product, or a label on the packaging, at the time of importation, marketing, and sales.8 The physical label can be a summary version of the required regulatory The FCC ID, and model number are present on the product packaging. information, such that the product can be identified as complying with the FCC’s equipment authorization requirements. The information may simply be the FCC ID for products subject to certification. Products imported that are already packaged for sale and have a physical temporary label will satisfy this requirement. However, for products imported in bulk and not packaged individually, it is acceptable to use a temporary removable adhesive label on the product, or temporary or permanent labels on the shipping packaging or protective bags. Any removable adhesive label shall be of a type intended to survive normal shipping and handling.

TEL : 886-3-327-3456 Page 1 of 18 FAX : 886-3-328-4978 Issued Date : Jun. 06, 2024 Template version: 240125 FCC SAR TEST REPORT Report No. : FA413101-01 FCC SAR TEST REPORT FCC ID : 2ABXLT1801A Equipment : Wireless Transceiver Brand Name : tile Model Name : T1801A Applicant : Life360, Inc. 1900 S NORFOLK ST. SUITE 310 SAN MATEO CA 94403 Manufacturer : Life360, Inc. 1900 S NORFOLK ST. SUITE 310 SAN MATEO CA 94403 Standard : FCC 47 CFR Part 2 (2.1093) The product was received on Apr. 23, 2024 and testing was on May. 09, 2024. We, SPORTON INTERNATIONAL INC., would like to declare that the tested sample provide by manufacturer and the test data has been evaluated in accordance with the test procedures given in 47 CFR Part 2.1093 and FCC KDB and has been pass the FCC requirement. The test results in this report apply exclusively to the tested model / sample. Without written approval of SPORTON INTERNATIONAL INC. Laboratory, the test report shall not be reproduced except in full. Sporton International Inc. Wensan Laboratory No.58, Aly. 75, Ln. 564, Wenhua 3rd, Rd., Guishan Dist., Taoyuan City 333010, Taiwan Approved by: Cona Huang / Deputy Manager TEL : 886-3-327-3456 Page 2 of 18 FAX : 886-3-328-4978 Issued Date : Jun. 06, 2024 Template version: 240125 FCC SAR TEST REPORT Report No. : FA413101-01 Table of Contents 1. Statement of Compliance ............................................................................................................................................. 4 2. Guidance Applied .......................................................................................................................................................... 4 3. Equipment Under Test (EUT) Information ................................................................................................................... 4 3.1 General Information ............................................................................................................................................... 4 4. RF Exposure Limits....................................................................................................................................................... 5 4.1 Uncontrolled Environment ...................................................................................................................................... 5 4.2 Controlled Environment .......................................................................................................................................... 5 5. Specific Absorption Rate (SAR) ................................................................................................................................... 6 5.1 Introduction ............................................................................................................................................................ 6 5.2 SAR Definition ........................................................................................................................................................ 6 6. System Description and Setup .................................................................................................................................... 7 6.1 Test Site Location ................................................................................................................................................... 7 6.2 E-Field Probe ......................................................................................................................................................... 8 6.3 Data Acquisition Electronics (DAE) ........................................................................................................................ 8 6.4 Phantom ................................................................................................................................................................. 9 6.5 Device Holder........................................................................................................................................................10 7. Measurement Procedures ...........................................................................................................................................11 7.1 Spatial Peak SAR Evaluation ................................................................................................................................ 11 7.2 Power Reference Measurement............................................................................................................................12 7.3 Area Scan .............................................................................................................................................................12 7.4 Zoom Scan ............................................................................................................................................................13 7.5 Volume Scan Procedures ......................................................................................................................................13 7.6 Power Drift Monitoring ...........................................................................................................................................13 8. Test Equipment List .....................................................................................................................................................14 9. System Verification ......................................................................................................................................................15 9.1 Tissue Verification .................................................................................................................................................15 9.2 System Performance Check Results .....................................................................................................................15 10. Bluetooth Output Power (Unit: dBm) ...................................................…

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Date: 2024-05-09 System Check_Head_2450MHz DUT: D2450V2 - SN736 Communication System: CW; Frequency: 2450.000 MHz Medium: HSL_2450_240509 Medium parameters used: f= 2450.000 MHz; σ= 1.83 S/m; ε r = 38.7 Ambient Temperature: 23.6°C; Liquid Temperature: 22.6°C DASY6 Configuration: - Probe: EX3DV4 - SN7700; ConvF(7.72, 7.83, 7.84); Calibrated: 2024-02-01 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn656; Calibrated: 2024-01-18 - Phantom: Twin-SAM V8.0 (30deg probe tilt); Serial: 2145; Section: Flat - Measurement Software: 16.2.4.2524 - UID: CW, 0-- Pin=17.0dBm/Area Scan (40.0 mm x 80.0 mm): Measurement Grid: 10.0 mm x 10.0 mm SAR (1g) = 2.36 W/kg; SAR (10g) = 1.09 W/kg; Pin=17.0dBm/Zoom Scan (30.0 mm x 30.0 mm x 30.0 mm): Measurement Grid: 5.0 mm x 5.0 mm x 1.5 mm Power Drift = -0.08 dB SAR (1g) = 2.46 W/kg; SAR (8g) = 1.33 W/kg; SAR (10g) = 1.22 W/kg Smallest distance from peaks to all points 3 dB below = 9.0 mm Ratio of SAR at M2 to SAR at M1 = 81.3 %

Date: 2024-05-09 #01_Bluetooth_1Mbps_Front_0mm_Ch0 Communication System: IEEE 802.15.1 Bluetooth; Frequency: 2402.000 MHz Medium: HSL_2450_240509 Medium parameters used: f= 2402.000 MHz; σ= 1.73 S/m; ε r = 39.2 Ambient Temperature: 23.6°C; Liquid Temperature: 22.6°C DASY6 Configuration: - Probe: EX3DV4 - SN7700; ConvF(7.72, 7.83, 7.84); Calibrated: 2024-02-01 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn656; Calibrated: 2024-01-18 - Phantom: Twin-SAM V8.0 (30deg probe tilt); Serial: 2145; Section: Flat - Measurement Software: 16.2.4.2524 - UID: Bluetooth, 10032-CAA Area Scan (80.0 mm x 80.0 mm): Measurement Grid: 10.0 mm x 10.0 mm SAR (1g) = 0.032 W/kg; SAR (10g) = 0.014 W/kg; Zoom Scan (30.0 mm x 30.0 mm x 30.0 mm): Measurement Grid: 5.0 mm x 5.0 mm x 1.5 mm Power Drift = 0.03 dB SAR (1g) = 0.030 W/kg; SAR (8g) = 0.014 W/kg; SAR (10g) = 0.013 W/kg Smallest distance from peaks to all points 3 dB below = 5.4 mm Ratio of SAR at M2 to SAR at M1 = 73.2 %

SP ORTON INTERNATIONAL INC. T EL : 886-3-327-3456 FAX : 886-3-328-4978 D2450V2, serial no. 736 Extended Dipole Calibrations If dipoles are verified in return loss (<-20dB, within 20% of prior calibration), and in impedance (within 5 ohm of prior calibration), the annual calibration is not necessary and the calibration interval can be extended. <Justification of the extended calibration> D2450V2 – serial no. 736 2450M HZ Da te of Measurement Re turn-Loss (dB) De lta (%) Re al Impedance (ohm) De lta (ohm) I maginary Impedance (ohm) De lta (ohm) 08.17.2021 (C al. Report) -24.29755.295 3.6377 08.16.2022 (ex tended) -28.76118.37 51.401 -3.8943.556 -0.0817 08.15.2023 (ex tended) -28.48317.23 51.239 -4.0563.496 -0.1417 T he return loss is < -20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. SPORTON INTERNATIONAL INC. TEL : 886-3-327-3456 FAX : 886-3-328-4978 <Dipole Verification Data> - D2450 V2, serial no. 736 (Data of Measurement : 08.16.2022) 2450 MHz - Head SPORTON INTERNATIONAL INC. TEL : 886-3-327-3456 FAX : 886-3-328-4978 <Dipole Verification Data> - D2450V2, serial no. 736 (Data of Measurement : 08.15.2023) D2450V2 MHz - Head

TEL: 886-3-327-0868 Page Number : 1 of 19 FAX: 886-3-327-0855 Issue Date : Jul. 10, 2024 Report Template No.: BU5-FR15CBT4.0 Version 2.4 Report Version : 02 FCC RADIO TEST REPORT Report No. : FR413101-01 FCC RADIO TEST REPORT FCC ID : 2ABXLT1801A Equipment : Wireless Transceiver Brand Name : tile Model Name : T1801A Applicant : Life360, Inc. 1900 S NORFOLK ST. SUITE 310 SAN MATEO CA 94403 Manufacturer Standard : Life360, Inc. 1900 S NORFOLK ST. SUITE 310 SAN MATEO CA 94403 : FCC Part 15 Subpart C §15.247 The product was received on Apr. 11, 2024 and testing was performed from Apr. 15, 2024 to Apr. 20, 2024. We, Sporton International Inc. Wensan Laboratory, would like to declare that the tested sample has been evaluated in accordance with the test procedures and has been in compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval from Sporton International Inc. Wensan Laboratory, the test report shall not be reproduced except in full. Approved by: Louis Wu Sporton International Inc. Wensan Laboratory No.58, Aly. 75, Ln. 564, Wenhua 3rd, Rd., Guishan Dist., Taoyuan City 333010, Taiwan (R.O.C.) TEL: 886-3-327-0868 Page Number : 2 of 19 FAX: 886-3-327-0855 Issue Date : Jul. 10, 2024 Report Template No.: BU5-FR15CBT4.0 Version 2.4 Report Version : 02 FCC RADIO TEST REPORT Report No. : FR413101-01 Table of Contents History of this test report ................................................................................................................................. 3 Summary of Test Result................................................................................................................................... 4 1 General Description ................................................................................................................................... 5 1.1 Product Feature of Equipment Under Test ........................................................................................ 5 1.2 Modification of EUT ........................................................................................................................... 5 1.3 Testing Location ................................................................................................................................ 5 1.4 Applicable Standards ......................................................................................................................... 5 2 Test Configuration of Equipment Under Test ......................................................................................... 6 2.1 Carrier Frequency Channel ............................................................................................................... 6 2.2 Test Mode .......................................................................................................................................... 7 2.3 Connection Diagram of Test System ................................................................................................. 8 2.4 Support Unit used in test configuration and system .......................................................................... 8 2.5 EUT Operation Test Setup ................................................................................................................ 8 2.6 Measurement Results Explanation Example ..................................................................................... 8 3 Test Result .................................................................................................................................................. 9 3.1 6dB and 99% Bandwidth Measurement ............................................................................................ 9 3.2 Output Power Measurement ............................................................................................................ 10 3.3 Power Spectral Density Measurement ............................................................................................ 11 3.4 Conducted Band Edges and Spurious Emission Measurement ..................................................... 12 3.5 Radiated Band Edges and Spurious Emission Measurement ........................................................ 13 3.6 Antenna Requirements .................................................................................................................... 17 4 List of Measuring Equipment ................................................................................................................. 18 5 Measurement Uncertainty ....................................................................................................................... 19 Appendix A. Conducted Test Results Appendix B. Radiated Spurious Emission Appendix C. Radiated Spurious Emission Plots Appendix D. Setup Photographs Appendix E. Supplier Declaration of Conformity TEL: 886-3-327-0868 Page Number : 3 of 19 FAX: 886-3-327-0855 Issue Date : Jul. 10, 2024 Report Template No.: BU5-FR15CBT4.0 Version 2.4 Report Version : 02 FCC RADIO TEST REPORT Report No. : FR413101-01 History of this test report Report No. Version Description Issue Date FR413101-01 01 Initial issue of report Jun. 04, 2024 FR413101-01 02 Revise Brand Name, Applicant and Manufacturer. This report is an updated version, replacing the report issued on Jun. 04, 2024. Jul. 10, 2024 TEL: 886-3-327-0868 Page Number : 4 of 19 FAX: 886-3-327-0855 Issue Date : Jul. 10, 2024 Report Template No.: BU5-FR15CBT4.0 Version 2.4 Report Version : 02 FCC RADIO TEST REPORT Report No. : FR413101-01 Summary of Test Result Report Clause Ref Std. Clause Test Items Result (PASS/FAIL) Remark 3.1 15.247(a)(2) 6dB Bandwidth Pass - 3.1 2.1049 99% Occupied Bandwidth Reporting only - 3.2 15.247(b)(3) 15.247(b)(4) Output Power Pass - 3.3 15.247(e) Power Spectral Density Pass - 3.4 15.247(d) Conducted Band Edges and Spurious Emission Pass - 3.5 15.247(d) Radiated Band Edges and Spurious Emission Pass …

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1 CONFIDENTIAL | ©Jabil Inc.2024. All Rights Reserved. Mate–Passive Antenna Measurements Test Date: 05/02/2024 Return Loss Antenna Efficiency & Radiation Patterns ZX-Plane (Phi 0 deg) ZY-Plane (Phi 90 deg) XY-Plane Theta 90 deg) Measured by E5072A Network Analyzer and ETS-LINDGREN OTA System Measured Antenna Efficiency at 2400-2500MHz : Measured 2-D Radiation Patterns at 2440MHz in free space : Measured the input return loss S11 and Smith chart : Antenna type: PCB Manufacturer and Brand: Life 360 Manufacturer Address: 1900 S NORFOLK ST STE 310SAN MATEO CA 94403 2 CONFIDENTIAL | ©Jabil Inc.2024. All Rights Reserved. JABIL's Over-the-Air (OTA) Laboratory •ETS-LINDGREN AMS-8947-195 : ✔Frequency range : 700MHz ~ 6GHz ✔Dimension(internal size): 4.9m * 4.9m * 4.9m ✔Measurement path length : 1.95m •Test Item : Passive Antenna Performance Measurement: ✔2D radiation pattern ✔3D radiation pattern ✔Efficiency ✔Peak gain and average gain Active Antenna Performance Measurement: ✔TRP (Total Radiated Power) ✔TIS (Total Isotropic Sensitivity) •Test condition : ✔Measurement in free space. (Optional) CTIA Head / Forearm Phantom ETS-LINDGREN AMS-8947-195 The AMS-8947-195 Antenna Measurement System by ETS-Lindgren at the JABIL lab AMS –System 8947-195 Passive Antenna Antenna Performance Measurement Pattern Measurement CellularLTEWiFiBT RFID UHF CTIA Certificated Sys. & Method 2D3D2G ~ 3.5G4GA,B,G,N BLE Function √√√√√√√√√ OTA Test Facilities Forearm Phantom Head Phantom Equipment identification number 設備識別編號 Equipment type(name)設備類型 (名稱) Manufacturer name or Brand 製造商名稱或 品牌 Model or manufacturing part number 型號或製造零件號 Equipment serial number 設備序號 Calibration interval 校準間隔 Last calibration date 最後校準日期 Calibration available due date 校驗有效截止日 ANT-EC-001 Network AnalyzerKeysightE5072A MY513008122 years2023/7/252025/7/24 ANT-EC-002 Network AnalyzerKeysightE5071C MY465246272 years2023/7/262025/7/25 ANT-EC-003 Spectrum AnalyzerKeysightN9010A MY545105982 years2023/7/242025/7/23 ANT-EC-004 Simulated Base StationR&SCMW500 1201.0002K50-154061- Qp 2 years2023/7/122025/7/11 ANT-EC-005 Near-field Communication Equipement MicroprossCTS MP3.15.13.063 years2015/9/30NA ANT-EC-006 Sleeve DipoleETS-LindgrenCF1575 NA4 years2017/5/23NA ANT-EC-007 Sleeve DipoleETS-LindgrenCF2500 NA4 years2017/5/23NA ANT-EC-008 Sleeve DipoleETS-LindgrenCF5500 NA4 years2017/5/23NA target to calibrate 校準目標 100% Basic Information 基本資料 Calibration 校準