2AEUPBHACM031Chime (3rd Gen)

Ring LLC 12515 Cerise Ave Hawthorne, California 90250, United States Tel: 8006561918 ; Fax: 3102272217 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Ring LLC, Grantee Code: 2AEUP Attestation Statement FRN: 0024616419 Reference: a) FCC CFR section 2.911(d)(5)(i) b) FCC CFR Section 2.911(d)(5)(ii) c) FCC CFR Section 2.911(d)(7) a) Ring LLC certifies that the equipment with FCC ID: 2AEUPBHACM031 for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of CFR title 47; b) Ring LLC (“the applicant”) certifies that, the device does not have cybersecurity and / or anti- virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, identified on the Covered List installed on the device, nor will it be installed by the applicant anytime after certification. c) Ring LLC certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List pursuant to § 1.50002 of CFR title 47, as an entity producing “covered” equipment and is not a subsidiary or affiliated of such entity; d) Ring LLC hereby designates itself for the purpose of accepting service of process. Ring LLC acknowledges its consent and obligation to accept service of process in the United States for matters related to the applicable equipment at the physical U.S. address and email address indicated below, and accepts the obligation to 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. Ring LLC 12515 Cerise Ave Hawthorne, California 90250, United States Jason Mitura, Tel: 8006561918, [email protected] Applicant’s Authorized Signature Name: Jason Mitura Date: August 27, 2025 CC STC 00357263 2025 TR Docusign Envelope ID: 07D2FDF8-7EA0-462E-9849-73B2016D1E0D August 31, 2025

Ring LLC 12515 Cerise Ave Hawthorne, California 90250, United States Tel: 8006561918 ; Fax: 3102272217 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Ring LLC, Grantee Code: 2AEUP Attestation Statement FRN: 0024616419 Reference: a) FCC CFR section 2.911(d)(5)(i) b) FCC CFR Section 2.911(d)(5)(ii) c) FCC CFR Section 2.911(d)(7) a) Ring LLC certifies that the equipment with FCC ID: 2AEUPBHACM031 for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of CFR title 47; b) Ring LLC (“the applicant”) certifies that, the device does not have cybersecurity and / or anti- virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, identified on the Covered List installed on the device, nor will it be installed by the applicant anytime after certification. c) Ring LLC certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List pursuant to § 1.50002 of CFR title 47, as an entity producing “covered” equipment and is not a subsidiary or affiliated of such entity; d) Ring LLC hereby designates itself for the purpose of accepting service of process. Ring LLC acknowledges its consent and obligation to accept service of process in the United States for matters related to the applicable equipment at the physical U.S. address and email address indicated below, and accepts the obligation to 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. Ring LLC 12515 Cerise Ave Hawthorne, California 90250, United States Jason Mitura, Tel: 8006561918, [email protected] Applicant’s Authorized Signature Name: Jason Mitura Date: August 27, 2025 CC STC 00357263 2025 TR Docusign Envelope ID: 07D2FDF8-7EA0-462E-9849-73B2016D1E0D August 31, 2025

Ring LLC 12515 Cerise Ave Hawthorne, California 90250, United States Tel: 8006561918 ; Fax: 3102272217 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Ring LLC, Grantee Code: 2AEUP Attestation Statement FRN: 0024616419 Reference: a) FCC CFR section 2.911(d)(5)(i) b) FCC CFR Section 2.911(d)(5)(ii) c) FCC CFR Section 2.911(d)(7) a) Ring LLC certifies that the equipment with FCC ID: 2AEUPBHACM031 for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of CFR title 47; b) Ring LLC (“the applicant”) certifies that, the device does not have cybersecurity and / or anti- virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, identified on the Covered List installed on the device, nor will it be installed by the applicant anytime after certification. c) Ring LLC certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List pursuant to § 1.50002 of CFR title 47, as an entity producing “covered” equipment and is not a subsidiary or affiliated of such entity; d) Ring LLC hereby designates itself for the purpose of accepting service of process. Ring LLC acknowledges its consent and obligation to accept service of process in the United States for matters related to the applicable equipment at the physical U.S. address and email address indicated below, and accepts the obligation to 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. Ring LLC 12515 Cerise Ave Hawthorne, California 90250, United States Jason Mitura, Tel: 8006561918, [email protected] Applicant’s Authorized Signature Name: Jason Mitura Date: August 27, 2025 CC STC 00357263 2025 TR Docusign Envelope ID: 07D2FDF8-7EA0-462E-9849-73B2016D1E0D August 31, 2025

Ring LLC 12515 Cerise Ave Hawthorne, California 90250, United States Tel: 8006561918 ; Fax: 3102272217 Date: August 27, 2025 Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd Columbia MD 21046-1609 Subject: Request for Confidentiality FCC ID: 2AEUPBHACM031 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 attachment(s) as confidential document from public disclosure indefinitely.  Schematic Diagram  Block Diagram  Part List  Operational Description  Tune Up Procedure 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. 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 CFT §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 grant short-term confidentiality request on the following attachment(s) for 180 days after the grant as outlined in Public Notice DA 04-1705.  External Photos  Internal Photos  Test Setup Photos  User Manual 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. Best Regards, ______________________ Jason Mitura [email protected] CC STC 00367254 2025 TR Docusign Envelope ID: 9BB92FA1-3B66-4E1C-B9F8-FCDD2D1DA424 September 2, 2025

Ring LLC 12515 Cerise Ave Hawthorne, California 90250, United States Tel: 8006561918 ; Fax: 3102272217 Date: April 15, 2025 To the Certification Body, Ring LLC hereby authorizes Sporton International Inc., located at No.52, Hwaya 1st Rd., Guishan Dist., Taoyuan City, Taiwan, R.O.C., to provide and prepare all documentation relating to our product certification, including the signing of application forms for Model Name 6HFYAB (“Product”), FCC ID 2AEUPBHACM031 directly to the Certification Body on our behalf. Sporton International Inc. is also authorized under this letter to respond on our behalf directly to the Certification Body’s questions about the Product and reports as necessary to assist the Certification Body in the FCC certification. We further certify that neither the applicant nor any party to this application, as defined in 47 CFR Ch. 1.2002(b), is subject to a denial to federal benefits, that include FCC benefits, pursuant to section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from Ring LLC. Sincerely, Ring LLC By: Jason Mitura Title: Authorized Signatory [email protected] CC STC 00357263 2025 TR Docusign Envelope ID: 07D2FDF8-7EA0-462E-9849-73B2016D1E0D August 31, 2025

Label location Device Back

PHASE LABEL TYPE TRIM SIZE COLOR PRINT MARGIN COPY COO COPY SETUP QR CODE QUIET ZONE WEEE Home Logo Square on square NOM CUL Listed MP Printed Label 25.43mm x 40.88mm K Cool Gray 6C 1mm 4pt 4.15pt (height, 1.05mm) 8.4mm x 8.4mm 10.4mm x 10.4mm 4.931mm x 7mm 4mm x 4.124mm 3mm x 3mm 3.576mm x 3mm 5.75mm x 4.5mm Vanilla (US/CAN/MX) DATE 25-07-31 ReferencePrint TOWNSEND MATERIAL SPEC REFERENCE: 05-102072 40.88 25.43 0 0 0 0 0 Chime (3rd Gen) Model: 6HFYAB FCC ID: 2AEUPBHACM031 IC: 20271-BHACM031 Power Input: 100-240V~ 50/60Hz, 0.2 A Ring LLC 12515 Cerise Ave Hawthorne, CA, 90250, USA ring.com ASSEMBLED IN VIETNAM VPPCCCUUYWWDXXXX DSN: MAC: XX:XX:XX:XX:XX:XX I.T.E E476547 Chime (3rd Gen) Model: 6HFYAB FCC ID: 2AEUPBHACM031 IC: 20271-BHACM031 Power Input: 100-240V~ 50/60Hz, 0.2 A Ring LLC 12515 Cerise Ave Hawthorne, CA, 90250, USA ring.com ASSEMBLED IN VIETNAM I.T.E E476547

Sporton International Inc. (Kunshan) Page Number : 1 of 7 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID : 2AEUPBHACM031 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA560332-01 RF Exposure Evaluation Report APPLICANT : Ring LLC EQUIPMENT : Chime (3rd Gen) BRAND NAME : ring MODEL NAME : 6HFYAB FCC ID : 2AEUPBHACM031 STANDARD : 47 CFR Part 2.1091 FCC KDB 447498 D01 v06 The product evaluation date was started from Aug. 20, 2025 and completed on Aug. 20, 2025. We, Sporton International Inc. (Kunshan), would like to declare that the device has been evaluated in accordance with47 CFR Part 2.1091 and FCC KDB 447498 D01 v06, and pass the limit. Without written approval of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Si Zhang Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc. (Kunshan) Page Number : 2 of 7 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID : 2AEUPBHACM031 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA560332-01 Table of Contents 1. ADMINISTRATION DATA ........................................................................................................................... 4 1.1. Testing Laboratory ............................................................................................................................. 4 2. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ............................................................................. 5 3. MAXIMUM RF AVERAGE OUTPUT TUNE UP POWER AMONG PRODUCTION UNITS ....................... 5 4. RF EXPOSURE LIMIT INTRODUCTION .................................................................................................... 6 5. RADIO FREQUENCY RADIATION EXPOSURE EVALUATION ............................................................... 7 5.1. Standalone Power Density Calculation ............................................................................................. 7 Sporton International Inc. (Kunshan) Page Number : 3 of 7 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID : 2AEUPBHACM031 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA560332-01 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA560332-01 Rev. 01 Initial issue of report. Sep. 05, 2025 Sporton International Inc. (Kunshan) Page Number : 4 of 7 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID : 2AEUPBHACM031 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA560332-01 1. Administration Data 1.1. Testing Laboratory Sporton International Inc. (Kunshan) is accredited to ISO/IEC 17025:2017 by American Association for Laboratory Accreditation with Certificate Number 5145.02. Testing Laboratory Test Firm Sporton International Inc. (Kunshan) Test Site Location No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China TEL : +86-512-57900158 Test Site No. Sporton Site No. FCC Designation No. FCC Test Firm Registration No. SAR01-KS CN1257 314309 Applicant Company Name Ring LLC Address 12515 Cerise Ave, Hawthorne, CA 90250, USA Manufacturer Company Name Ring LLC Address 12515 Cerise Ave, Hawthorne, CA 90250, USA Sporton International Inc. (Kunshan) Page Number : 5 of 7 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID : 2AEUPBHACM031 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA560332-01 2. Description of Equipment Under Test (EUT) Product Feature & Specification EUT Type Chime (3rd Gen) Brand Name ring Model Name 6HFYAB FCC ID 2AEUPBHACM031 Wireless Technology and Frequency Range WLAN 2.4GHz Band: 2412 MHz ~ 2462 MHz Bluetooth: 2402 MHz ~ 2480 MHz Mode WLAN 2.4GHz 802.11b/g/n/ax HT20/HE20 Bluetooth LE Antenna Gain WLAN2.4GHz: 3.00 dBi Bluetooth: 3.00 dBi Antenna Type Bluetooth: PIFA Antenna WLAN: PIFA Antenna EUT Stage Identical Prototype Remark: The above EUT's information was declared by manufacturer. Please refer to the specifications or user's manual for more detailed description. Comments and Explanations: 1. The declared of product specification for EUT presented in the report are provided by the manufacturer, and the manufacturer takes all the responsibilities for the accuracy of product specification. 2. The maximum RF output tune up power, antenna gain also the safe distance used for evaluate RF exposure were declared by manufacturer. 3. Maximum RF average output tune up power among production units <2.4GHz WLAN > Mode Maximum Average Power (dBm) 2.4GHz 802.11b 20.00 802.11g 19.00 802.11n-HT20 18.00 802.11ax-HE20 18.00 <Bluetooth> Mode Maximum Average power(dBm) Bluetooth LE 6.00 Sporton International Inc. (Kunshan) Page Number : 6 of 7 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID : 2AEUPBHACM031 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA560332-01 4. RF Exposure Limit Introduction According to ANSI/IEEE C95.1-1992, the criteria listed in Table 1 shall be used to evaluate the environmental impact of human exposure to radio frequency (RF) radiation as specified in §1.1310. The MPE was calculated at 20 cm to show compliance with the power density limit. The following formula was used to calculate the Power Density: 퐒= 퐏퐆 ퟒ훑퐑 ퟐ Where: S = Power Density P = Output Power at Antenna Terminals G = Gain of Transmit Antenna (linear gain) R = Distance from Transmitting Antenna Sporton International Inc. (Kunshan) Page Number : 7 of 7 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID : 2AEUPBHACM031 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA560332-01 5. Radio Frequency Radiation Exposure Evaluation 5.1. Standalone Power Density Calculation Band Frequency (MHz) Antenna Gain (dBi) Maximum Power (dBm) Maximum EIRP (dBm) Average EIRP (mW) Power Density …

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Antenna Specifications Model Number: 6HFYAB Antenna Manufacturer's name Welletronice Communication Technology Co.,Ltd Antenna Manufacturer's Address Room 110, Building 5, Nanxiang Zhidi Phase III, No. 1101 Huyi Road, Jiading District, Shanghai. Antenna Pattern PIFA Antenna Part Number: 6HFYAB Frequency range of operation: •Wi-Fi/BLE: 2400~2500MHz Antenna type: PIFA Antenna gain: •Wi-Fi: 3dBi Lab name: WTT Lab address: Room 110, Building 5, Nanxiang Zhidi Phase III, No. 1101 Huyi Road, Jiading District, Shanghai Measurement test method: Passive Test date: 2025.7.23 Test equipment: GTS-1800 Calibration due: 2027.7.29 OTA chamber: GTS-2800 Test engineer: Liu chao Equipment setup: Software used: Test set-up: 1.Place the DUT at the center of the turntable, 2.Connecting the test cable to the DUT, and use the Libra-NEW software for passive measurement. 3.During the measured process, GTS1800 will conduct radiation testing with the DUT through 23 probes by a vertical 360- degree; then the turntable will rotate a horizontal 180- degree. 4.After, a complete measurement of spherical 3D is completed. Antenna radiation pattern: Linear 2D Radiation Pattern : Coordinate System : WIFI/BLE Antenna :2D图 X Y 3D Radiation Pattern Coordinate System : X Y WIFI/BLE Antenna : XY-Plane XZ-Plane YZ-Plane

Sporton International Inc. (Kunshan) Page Number : 1 of 63 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID: 2AEUPBHACM031 Report Version : Rev. 01 Report Template No.: BU5-FR15CBT4.0 Version 2.0 FCC RF Test Report Report No. : FR560332-01A FCC RF Test Report APPLICANT : Ring LLC EQUIPMENT : Chime (3rd Gen) BRAND NAME : ring MODEL NAME : 6HFYAB FCC ID : 2AEUPBHACM031 STANDARD : FCC Part 15 Subpart C §15.247 CLASSIFICATION : (DTS) Digital Transmission System TEST DATE(S) : Jun. 21, 2025 ~ Aug. 10, 2025 We, Sporton International Inc. (Kunshan), 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 of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Jason Jia Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc. (Kunshan) Page Number : 2 of 63 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID: 2AEUPBHACM031 Report Version : Rev. 01 Report Template No.: BU5-FR15CBT4.0 Version 2.0 FCC RF Test Report Report No. : FR560332-01A TABLE OF CONTENTS REVISION HISTORY .......................................................................................................................................... 3 SUMMARY OF TEST RESULT ......................................................................................................................... 4 1 GENERAL DESCRIPTION .......................................................................................................................... 5 1.1 Applicant ............................................................................................................................................ 5 1.2 Product Feature of Equipment Under Test ........................................................................................ 5 1.3 Product Specification of Equipment Under Test ................................................................................ 5 1.4 Modification of EUT ........................................................................................................................... 5 1.5 Testing Location ................................................................................................................................ 6 1.6 Test Software ..................................................................................................................................... 6 1.7 Applicable Standards ......................................................................................................................... 6 2 TEST CONFIGURATION OF EQUIPMENT UNDER TEST ........................................................................ 7 2.1 Carrier Frequency Channel ............................................................................................................... 7 2.2 Test Mode .......................................................................................................................................... 8 2.3 Connection Diagram of Test System ................................................................................................. 9 2.4 Support Unit used in test configuration and system ........................................................................ 10 2.5 EUT Operation Test Setup .............................................................................................................. 10 2.6 Measurement Results Explanation Example ................................................................................... 10 3 TEST RESULT .......................................................................................................................................... 11 3.1 6dB and 99% Bandwidth Measurement .......................................................................................... 11 3.2 Output Power Measurement ............................................................................................................ 24 3.3 Power Spectral Density Measurement ............................................................................................ 25 3.4 Conducted Band Edges and Spurious Emission Measurement ..................................................... 38 3.5 Radiated Band Edges and Spurious Emission Measurement ........................................................ 55 3.6 AC Conducted Emission Measurement........................................................................................... 59 3.7 Antenna Requirements .................................................................................................................... 61 4 LIST OF MEASURING EQUIPMENT ........................................................................................................ 62 5 MEASUREMENT UNCERTAINTY ............................................................................................................ 63 APPENDIX A. CONDUCTED TEST RESULTS APPENDIX B. AC CONDUCTED EMISSION TEST RESULT APPENDIX C. RADIATED SPURIOUS EMISSION APPENDIX D. DUTY CYCLE PLOTS Sporton International Inc. (Kunshan) Page Number : 3 of 63 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID: 2AEUPBHACM031 Report Version : Rev. 01 Report Template No.: BU5-FR15CBT4.0 Version 2.0 FCC RF Test Report Report No. : FR560332-01A REVISION HISTORY REPORT NO. VERSION DESCRIPTION ISSUED DATE FR560332-01A Rev. 01 Initial issue of report Sep. 05, 2025 Sporton International Inc. (Kunshan) Page Number : 4 of 63 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID: 2AEUPBHACM031 Report Version : Rev. 01 Report Template No.: BU5-FR15CBT4.0 Version 2.0 FCC RF Test Report Report No. : FR560332-01A SUMMARY OF TEST RESULT Report Sectio…

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Sporton International Inc. (Kunshan) Page Number : C3 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 1 Band Edge 2400-2483.5_Bluetooth-LE_GSFK_CH0_2402MHz ANT 1 Pol. Vertical Fundamental Peak Avg Sporton International Inc. (Kunshan) Page Number : C4 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 1 Harmonic 2400-2483.5_Bluetooth-LE_GSFK_CH0_2402MHz ANT 1 Pol. Horizontal Vertical Peak Avg Sporton International Inc. (Kunshan) Page Number : C5 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 2 Harmonic 2400-2483.5_Bluetooth-LE_GSFK_CH19_2440MHz ANT 1 Pol. Horizontal Vertical Peak Avg Sporton International Inc. (Kunshan) Page Number : C6 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 3 Band Edge 2400-2483.5_Bluetooth-LE_GSFK_CH39_2480MHz ANT 1 Pol. Horizontal Fundamental Peak Avg Sporton International Inc. (Kunshan) Page Number : C7 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 3 Band Edge 2400-2483.5_Bluetooth-LE_GSFK_CH39_2480MHz ANT 1 Pol. Vertical Fundamental Peak Avg Sporton International Inc. (Kunshan) Page Number : C8 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 3 Harmonic 2400-2483.5_Bluetooth-LE_GSFK_CH39_2480MHz ANT 1 Pol. Horizontal Vertical Peak Avg Sporton International Inc. (Kunshan) Page Number : C9 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 4 Band Edge 2400-2483.5_Bluetooth-LE_GSFK_CH0_2402MHz ANT 1 Pol. Horizontal Fundamental Peak Avg Sporton International Inc. (Kunshan) Page Number : C10 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 4 Band Edge 2400-2483.5_Bluetooth-LE_GSFK_CH0_2402MHz ANT 1 Pol. Vertical Fundamental Peak Avg Sporton International Inc. (Kunshan) Page Number : C11 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 4 Harmonic 2400-2483.5_Bluetooth-LE_GSFK_CH0_2402MHz ANT 1 Pol. Horizontal Vertical Peak Avg Sporton International Inc. (Kunshan) Page Number : C12 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 5 Harmonic 2400-2483.5_Bluetooth-LE_GSFK_CH19_2440MHz ANT 1 Pol. Horizontal Vertical Peak Avg Sporton International Inc. (Kunshan) Page Number : C13 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 6 Band Edge 2400-2483.5_Bluetooth-LE_GSFK_CH39_2480MHz ANT 1 Pol. Horizontal Fundamental Peak Avg Sporton International Inc. (Kunshan) Page Number : C14 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 6 Band Edge 2400-2483.5_Bluetooth-LE_GSFK_CH39_2480MHz ANT 1 Pol. Vertical Fundamental Peak Avg Sporton International Inc. (Kunshan) Page Number : C15 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 6 Harmonic 2400-2483.5_Bluetooth-LE_GSFK_CH39_2480MHz ANT 1 Pol. Horizontal Vertical Peak Avg Sporton International Inc. (Kunshan) Page Number : C16 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 5 18G-25G 2400-2483.5_Bluetooth-LE_GSFK_CH19_2440MHz ANT 1 Pol. Horizontal Vertical Peak Avg Sporton International Inc. (Kunshan) Page Number : C17 of C17 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 FCC RF Test Report Report No. : FR560332-01A Mode 5 30-1G 2400-2483.5_Bluetooth-LE_GSFK_CH19_2440MHz ANT 1 Pol. Horizontal Vertical Peak Sporton International Inc. (Kunshan) Page Number : D1 of D1 TEL : +86-512-57900158 FCC ID: 2AEUPBHACM031 RF Test Report Report No. : FR560332-01A Appendix D. Duty Cycle Plots Band Duty Cycle(%) T(ms) 1/T(kHz) VBW Setting Bluetooth LE 1Mbps 100 - - 10Hz Bluetooth LE 2Mbps 100 - - 10Hz Bluetooth – LE 1Mbps Bluetooth – LE 2Mbps 720510 720510

Sporton International Inc. (Kunshan) Page Number : 1 of 51 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID: 2AEUPBHACM031 Report Version : Rev. 01 Report Template No.: BU5-FR15CWL AC MA Version 2.0 FCC RF Test Report Report No. : FR560332-01B FCC RF Test Report APPLICANT : Ring LLC EQUIPMENT : Chime (3rd Gen) BRAND NAME : ring MODEL NAME : 6HFYAB FCC ID : 2AEUPBHACM031 STANDARD : FCC Part 15 Subpart C §15.247 CLASSIFICATION : (DTS) Digital Transmission System TEST DATE(S) : Jun. 21, 2025 ~ Aug. 22, 2025 We, Sporton International Inc. (Kunshan), 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 of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Jason Jia Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc. (Kunshan) Page Number : 2 of 51 TEL : +86-512-57900158 Report Issued Date : Sep. 05, 2025 FCC ID: 2AEUPBHACM031 Report Version : Rev. 01 Report Template No.: BU5-FR15CWL AC MA Version 2.0 FCC RF Test Report Report No. : FR560332-01B TABLE OF CONTENTS REVISION HISTORY .......................................................................................................................................... 3 SUMMARY OF TEST R…

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