2A4DF-Z005Accessory & controllers for indoor cycling

Applicant Declaration QSF27-14-04 Rev 1.1 Jan 17, 2024 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name Zwift, Inc Address 111 W. Ocean Blvd Suite 1800, Long Beach, CA 90802, USA FRN 0030484257 Grantee Code 2A4DF FCC ID 2A4DF-Z005 Authorized Contact Name David Young Contact Email [email protected] Contact Phone +447540064789 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall , upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) 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 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List X Zwift, Inc (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. X Zwift, Inc (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is / is not] identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. Applicant Signature: Date: 01/02/24 Print Name: David Young Title: Senior Director, Programs *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

UNITED STATES DESIGNATED AGENT LETTER Date: 31/01/24 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant U.S. designated agent Company Name: Zwift, Inc Company Name: Zwift, Inc FRN: 0030484257 FRN: 0030484257 Grantee Code: 2A4DF Contact Name: David Young Contact Name David Young Address: 111 W. Ocean Blvd Suite 1800, Long Beach Address: 111 W. Ocean Blvd Suite 1800, Long Beach City/Province/Zip: CA 90802, USA City/Province/Zip: CA 90802, USA Telephone: +44 7540064789 Telephone: +44 7540064789 Fax: Fax: Email: [email protected] Email: [email protected] Applicable Equipment: FCC ID: 2A4DF-Z005 ATTN: Director of Certification: We, Zwift, Inc and Zwift, Inc understand and acknowledge the applicants consent and the designated agent’s obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, Zwift, Inc and Zwift, Inc acknowledge the applicant’s acceptance of its 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. Applicant U.S. designated agent Name (Printed) : David Young Name (Printed) : David Young Title: Senior Director, Programs Title: Senior Director, Programs Signature: Signature:

111 W Ocean Blvd Suite 1800 Long Beach, CA 90802 Tel: +1 855-469-9438 Date: 01/02/24 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: 2A4DF-Z005 To whom it may concern: We, the undersigned, hereby authorize SGS Hong Kong Limited and YW Yung in SGS Hong Kong Limited to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not 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. 853(a). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with Zwift, Inc. This authorization is valid until further written notice from the applicant. Name (Printed) : David Young Title: Senior Director, Programs Signature: On behalf of Company: Zwift, Inc Telephone: +447540064789

111 W Ocean Blvd Suite 1800 Long Beach, CA 90802 Tel: +1 855-469-9438 To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From: 111 W. Ocean Blvd Suite 1800, Long Beach, CA 90802, USA Regarding: Confidentiality Request regarding application for FCC ID 2A4DF-Z005 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby requests confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Additionally, the applicant requests the following documents be held confidential until the device is marketed or 180 days from the grant date, whichever is less. If the device is marketed within aforementioned days of the Grant Date, the applicant will notify the TCB per FCC KDB 726920 D01 Confidentiality Request Procedures. External Photos Internal Photos Test Setup Photos User manual(s) Sincerely, David Young Senior Director, Programs Zwift, Inc

DATE 23-06-13 SHEET SIZE A3 REVISION B.1 SCALE 1:1 DRAWING NO ART-102695-00 TITLE HANDLEBAR SERIALISATION LBL MATERIAL PRINTED LABEL DRAWN BY TO REVNAMEECOAPPROVERAPPROVAL DATEDESCRIPTION 1TOXXXXXXXXXCOLOUR SPEC UPDATE B.0TO000167XXX09-01-24ADDED COPY - MODEL NO: L* = 27.88 A* = 0.36 B* = 0.16 CIE lab Z-BLK-001 L* = 93.01 A* = -0.71 B* = 1.1 CIE lab Z-WHT-001 B.1TO000170XXX16/02/24BARCODE/SERAILISATION INFOMATION REMOVED WWW.ZWIFT.COM IP33Input: 5V 1A Made in China Serial# AXXXXXXXXXXX MAC:XX-XXXXXXXXXX FCC ID:2A4DF-Z005 Zwift RIDEModel: Z005 WWW.ZWIFT.COM IP33Input: 5V 1A Made in China Serial# AXXXXXXXXXXX MAC:XX-XXXXXXXXXX FCC ID:2A4DF-Z005 Zwift RIDEModel: Z005 WWW.ZWIFT.COM IP33Input: 5V 1A Made in China Serial# AXXXXXXXXXXX MAC:XX-XXXXXXXXXX FCC ID:2A4DF-Z005 Zwift RIDEModel: Z005 ARTWORK: Artwork to be centered on part LABEL OUTLINE CUT TO THIS LINE COLOUR Z-BLK-001 COLOUR Z-WHT-001 38mm (38mm) 15mm (15mm)

Report No.: HKEM231100086803 Page: 1 of 12 Law Man Kit EMC Manager This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request and accessible at http://www.sgs.com/en/Terms-and-conditions.aspx and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-conditions.aspx. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. The document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 30 days only. TEST REPORT Application No.: HKEM2311000868HS Applicant:Zwift, Inc. Address of Applicant:111 W. Ocean Blvd Suite 1800, Long Beach, CA 90802, USA Equipment Under Test (EUT): EUT Name:Zwift: Ride Model No.: Z005 FCC ID:2A4DF-Z005 IC:31677-Z005 HVIN:Z005 Standard(s) : 47 CFR Part 1.1307 47 CFR Part 2.1093 KDB447498 D01 General RF Exposure Guidance v06 RSS102 Issue 5 March 2015 Date of Receipt: 2024-01-18 Date of Test: 2024-01-18 to 2024-01-25 Date of Issue: 2024-01-25 Test Result: The submitted sample was found to comply with the test requirement Report No.: HKEM231100086803 Page: 2 of 12 Revision Record Revision No.DateReport supersededRemark Authorized for issue by: Chan Chun Lok /Project Engineer Date: 2024-01-25 Law Man Kit /Reviewer Date: 2024-01-25 Report No.: HKEM231100086803 Page: 3 of 12 2Test Summary Radio Spectrum Technical Requirement ItemStandardMethodRequirementResult RF Exposure 47 CFR Part 1.1307 47 CFR Part 2.1093 KDB447498D01 KDB447498D01KDB447498D01PASS RF ExposureRSS102 Issue 5 RSS-102 Section 2.5.1 RSS102 Issue 5PASS Declaration of EUT Family Grouping: N/A Abbreviation: Tx: In this whole report Tx (or tx) means Transmitter. Rx:In this whole report Rx (or rx) means Receiver. RF:In this whole report RF means Radiated Frequency. CH: In this whole report CH means channel. Volt: In this whole report Volt means Voltage. Temp: In this whole report Temp means Temperature. Humid: In this whole report Humid means humidity. Press: In this whole report Press means Pressure. N/A: In this whole report not application. Report No.: HKEM231100086803 Page: 4 of 12 3Contents Page 1COVER PAGE...........................................................................................................................................1 2TEST SUMMARY......................................................................................................................................3 3CONTENTS...............................................................................................................................................4 4GENERAL INFORMATION.......................................................................................................................5 4.1DETAILS OF E.U.T...............................................................................................................................5 4.2DESCRIPTION OF SUPPORT UNITS........................................................................................................6 4.3MODULATION CONFIGURATION.............................................................................................................6 4.4TEST LOCATION...................................................................................................................................7 4.5TEST FACILITY.....................................................................................................................................7 4.6DEVIATION FROM STANDARDS..............................................................................................................7 4.7ABNORMALITIES FROM STANDARD CONDITIONS.....................................................................................7 5RADIO SPECTRUM TECHNICAL REQUIREMENT.................................................................................8 5.1RF EXPOSURE....................................................................................................................................8 5.1.1Test Requirement:.........................................................................................................................8 5.1.1EUT RF Exposure Evaluation.......................................................................................................9 5.2RF EXPOSURE..................................................................................................................................10 5.2.1Test Requirement:.......................................................................................................................10 5.2.2Conclusion..................................................................................................................................11 6PHOTOGRAPHS.....................................................................................................................................12 6.1EUT CONSTRUCTIONAL DETAILS (EUT PHOTOS)................................................................................12 Report No.: HKEM231100086803 Page: 5 of 12 4General Information 4.1Details of E.U.T. Power supply:Battery Model: C0012A Output: DC 3.6 V Test voltage:DC 3.6 V Cable:Power Cable: 149 cm unshielded 2-wire USB cable Antenna …

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Application Note AN043 Small Size 2.4 GHz PCB antenna By Audun Andersen 1 KEYWORDS • CC25xx • CC24xx • CC2480 • PCB antenna • USB dongle • 2.4 GHz • Inverted F Antenna 2 INTRODUCTION The PCB antenna used on the CC2511 USB dongle reference design is described in this application note. Even if the antenna presented is for a USB dongle design it can be used in all 2.4 GHz designs, especially where small space is required for the antenna. This application note describes the antenna dimensions, the RF performance and considerations for complying with regulatory limits when using this design. The suggested antenna design requires no more than 15.2 x 5.7 mm of space and ensures a VSWR ratio of less than 2 across the 2.4 GHz ISM band when connected to a 50 ohm source. Figure 1: CC2511 USB Dongle SWRA117D Page 1 of 21 Application Note AN043 Table of Contents 1 KEYWORDS...................................................................................................................1 2 INTRODUCTION.............................................................................................................1 3 ABBREVIATIONS...........................................................................................................2 4 ANTENNA DESIGN........................................................................................................3 4.1 DESIGN GOALS..........................................................................................................3 4.2 SIMULATION...............................................................................................................3 4.3 LAYOUT AND IMPLEMENTATION...................................................................................4 5 TEST RESULTS.............................................................................................................5 5.1 REFLECTION..............................................................................................................5 5.2 RADIATION PATTERN..................................................................................................7 5.3 OUTPUT POWER......................................................................................................15 5.4 SPURIOUS EMISSION AND HARMONICS......................................................................17 6 CONCLUSION ..............................................................................................................20 7 GENERAL INFORMATION..........................................................................................21 7.1 DOCUMENT HISTORY................................................................................................21 3 ABBREVIATIONS CAD Computer Aided Design CC24xx CC2400, CC2420, CC2430 and CC2431 CC25xx CC2500, CC2510, CC2511, CC2550 and CC2520 CC2480 Z-Accel ZigBee Processor IFA Inverted F Antenna ISM Industrial, Scientific and Medical LOS Line Of Sight PCB Printed Circuit Board PER Packet Error Rate VSWR Voltage Standing Wave Ratio SWRA117D Page 2 of 21 Application Note AN043 4 ANTENNA DESIGN The PCB antenna on the CC2511 USB dongle reference design is a meandered Inverted F Antenna (IFA). The IFA was designed to match an impedance of 50 ohm at 2.45 GHz. Thus no additional matching components are necessary. 4.1 Design Goals The reflection at the feed point of the antenna determines how much of the applied power is delivered to the antenna. A reflection of less than -10 dB across the 2.4 GHz ISM band, when connected to a 50 ohm source, was a design goal. Reflection of less than -10 dB, or VSWR less than 2, ensures that more than 90% of the available power is delivered to the antenna. Bandwidth is in this document defined as the frequency band where more than 90% of the available power is delivered to the antenna. Another design goal was to fit the size of the PCB antenna on a USB dongle and to obtain good performance also when the dongle is connected to a computer. 4.2 Simulation IE3D from Zeland, which is an electromagnetic simulation tool, was used to design the antenna. The accuracy of the simulation is controlled by the mesh. An increase of the mesh increases the simulation time. Thus, for initial simulations mesh = 1 should be used. When a fairly good result is achieved a higher mesh should be used to obtain more accurate results. Comparison of simulation and measurement results shows that the measured reflection is between the result obtained with mesh = 5 and mesh = 1; see Figure 2 for details. Figure 2: Comparison of Simulation and Measurements Results SWRA117D Page 3 of 21 Application Note AN043 4.3 Layout and Implementation Small changes of the antenna dimensions may have large impact on the performance. Therefore it is strongly recommended to make an exact copy of the reference design to achieve optimum performance. The easiest way to implement the antenna is to import the gerber or DXF file showing the antenna layout. These files are named IFA_USB.spl and IFA_USB.dxf respectively and are included in the CC2511 USB dongle reference design available from http://www.ti.com\lpw. The imported file can be used as a template when drawing the antenna. By using this procedure it should be possible to make an exact copy. If the PCB CAD tool being used does not support import of DXF or gerber files, Figure 3 and Table 1 should be used to ensure correct implementation. It is recommended to generate a gerber file for comparison with IFA_USB.spl when making a manual implementation. Most gerber viewers have the possibility to import several gerber files at the same time. Thus by placing the gerber file, showing the manually implemented antenna, on top of IFA_USB.spl it is easy to verify that the antenna is correctly implemented. It is also recommended to use the same thickness and type of PCB material as used in the reference design. Information about the PCB can be found in a separate readme file included in the reference design. To compensate for a thicker/thinner P…

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Report No.: HKEM231100086802 Page: 1 of 53 Law Man Kit EMC Manager This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request and accessible at http://www.sgs.com/en/Terms-and-conditions.aspx and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-conditions.aspx. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. The document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 30 days only. TEST REPORT Application No.: HKEM2311000868HS Applicant:Zwift, Inc. Address of Applicant:111 W. Ocean Blvd Suite 1800, Long Beach, CA 90802, USA Equipment Under Test (EUT): EUT Name:Zwift: Ride Model No.: Z005 FCC ID:2A4DF-Z005 IC:31677-Z005 HVIN:Z005 Standard(s) : RSS-247 Issue 2, February 2017 RSS-Gen Issue 5, Amdt 2021 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2024-01-18 Date of Test: 2024-01-18 to 2024-01-25 Date of Issue: 2024-01-25 Test Result: The submitted sample was found to comply with the test requirement Report No.: HKEM231100086802 Page: 2 of 53 Revision Record Revision No.DateReport supersededRemark Authorized for issue by: Chan Chun Lok /Project Engineer Date: 2024-01-25 Law Man Kit /Reviewer Date: 2024-01-25 Report No.: HKEM231100086802 Page: 3 of 53 2Test Summary IC: Radio Spectrum Technical Requirement ItemStandardMethodRequirementResult Antenna Requirement RSS-247 Issue 2, February 2017 N/ARSS-Gen Section 6.8Pass Radio Spectrum Matter Part ItemStandardMethodRequirementResult 99% Bandwidth RSS-247 Issue 2, February 2017 ANSI C63.10 (2013) Section 6.9.3 RSS-Gen Section 6.7Pass Minimum 6dB Bandwidth RSS-247 Issue 2, February 2017 ANSI C63.10 (2013) Section 11.8.1 RSS-247 Section 5.2(a)Pass Conducted Peak Output Power RSS-247 Issue 2, February 2017 ANSI C63.10 (2013) Section 11.9.1 RSS-247 Section 5.4(d)Pass Power Spectrum Density RSS-247 Issue 2, February 2017 ANSI C63.10 (2013) Section 11.10.2 RSS-247 Clause 5.2(b)Pass Conducted Band Edges Measurement RSS-247 Issue 2, February 2017 ANSI C63.10 (2013) Section 11.12 RSS-247 Section 5.5Pass Conducted Spurious Emissions RSS-247 Issue 2, February 2017 ANSI C63.10 (2013) Section 11.11 RSS-247 Section 5.5Pass Radiated Emissions which fall in the restricted bands RSS-247 Issue 2, February 2017 ANSI C63.10 (2013) Section 6.10.5 Section 3.3 & RSS-Gen Section 8.10 Pass Radiated Spurious Emissions RSS-247 Issue 2, February 2017 ANSI C63.10 (2013) Section 6.4&6.5&6.6 Section 3.3 & RSS-Gen Section 8.9 Pass Report No.: HKEM231100086802 Page: 4 of 53 FCC: Radio Spectrum Technical Requirement ItemStandardMethodRequirementResult Antenna Requirement 47 CFR Part 15, Subpart C N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part ItemStandardMethodRequirementResult Minimum 6dB Bandwidth 47 CFR Part 15, Subpart C ANSI C63.10 (2013) Section 11.8.1 47 CFR Part 15, Subpart C a(2) Pass Conducted Peak Output Power 47 CFR Part 15, Subpart C ANSI C63.10 (2013) Section 11.9.1 47 CFR Part 15, Subpart C (b)(3) Pass Power Spectrum Density 47 CFR Part 15, Subpart C ANSI C63.10 (2013) Section 11.10.2 47 CFR Part 15, Subpart C (e) Pass Conducted Band Edges Measurement 47 CFR Part 15, Subpart C ANSI C63.10 (2013) Section 11.13.3.2 47 CFR Part 15, Subpart C (d) Pass Conducted Spurious Emissions 47 CFR Part 15, Subpart C ANSI C63.10 (2013) Section 11.11 47 CFR Part 15, Subpart C (d) Pass Radiated Emissions which fall in the restricted bands 47 CFR Part 15, Subpart C ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions 47 CFR Part 15, Subpart C ANSI C63.10 (2013) Section 6.4,6.5,6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Declaration of EUT Family Grouping: N/A Abbreviation: Tx: In this whole report Tx (or tx) means Transmitter. Rx:In this whole report Rx (or rx) means Receiver. RF:In this whole report RF means Radiated Frequency. CH: In this whole report CH means channel. Volt: In this whole report Volt means Voltage. Temp: In this whole report Temp means Temperature. Humid: In this whole report Humid means humidity. Press: In this whole report Press means Pressure. N/A: In this whole report not application. Report No.: HKEM231100086802 Page: 5 of 53 3Contents Page 1COVER PAGE...........................................................................................................................................1 2TEST SUMMARY................................................................................................................................3 3CONTENTS.........................................................................................................................................5 4GENERAL INFORMATION.................................................................................................................7 4.1DETAILS OF E.U.T.........................................................................................................................7 4.2DESCRIPTION OF SUPPORT UNITS..................................................................................................8 4.3MODULATION CONFIGURATION..................................…

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