2BTGZ-PS135Rewindpix Camera

Rewindpix LLC p 1 / 2 63_Compliance proof covered list - 2.911(d)(5)(i) and (ii) - software_V02 12 /25 /2025 --- Covered List Software Incapability 1 --- Device (model name): Rewindpix Camera Grantee: Rewindpix LLC FCC ID: 2BTGZ-PS135 Device features: Operating System (as applicable): N/A Storage Capacity (hard drive or other permanent memory storage): 256 MB Is installation of third-party software possible? YES NO Does the device have an internet connection? YES NO Can the device connect to a PC? YES NO Chipset/module information: Chipset / module part number: Memory size (MB) NT96565 QFN128 256 MB Minimum system requirements Kaspersky as of December 3, 2024 Android Memory: 120 MB Disc space: unknown Processor speed: unknown MacOS Memory: 2000 MB Disc space: 2200 MHz Processor speed: unknown Windows Memory: 1000 MB Disc space: 1000 MB Processor speed: 1 GHz Linux Memory: 1000 MB Disc space: 1000 MHz Processor speed: 1 GHz Based on the review of the above factsheet(s) and device features, the device cannot support installation of any cybersecurity or anti-virus software on the covered list. potentially can operate with any cybersecurity or anti-virus software on the covered list – additional 3 rd party proof is provided to demonstrate compliance with requirements as of 2.911(d)5(i),(ii) – page 2 of this document applies. Signature: Name: Xiao Liu Title/Position: Founder/CEO 1 List of minimum requirements to implement covered list software – if the EUT does not have capability to install Kaspersky under the given configuration. Page 2 must also be handed in. Note: If the device is capable of running Kaspersky software, at least one document must be provided from a third party showing that the Kaspersky software is not present on the device. This could include the results of a software scan, a screen capture of the device software register or other objective evidence that proves the Kaspersky software is not on the device. Please follow options listed on page 2. Rewindpix LLC p 2 / 2 63_Compliance proof covered list - 2.911(d)(5)(i) and (ii) - software_V02 - Options to provide of compliance with covered list software requirements - Please fill in as applicable and provide additional proof as requested: 1 Has the client signed an attestation stating the device is incapable of running the Kaspersky software (page 1)? * YES – no more proof needed – 2-5 do not apply > N/A ** NO – more proof must be provided (item 2-5 must be answered) YES* NO** 2 Did the test lab or other 3rd party other than the certification body and applicant provide a list of software installed on the device and is there no evidence of Kaspersky software being installed? ***YES – please: YES*** NO N/A Insert File Name: Insert 3 rd Party Name: 3 Have the results of a software scan been provided showing that Kaspersky software is not installed on the device? ***YES – please: YES*** NO N/A Insert File Name: Insert 3 rd Party Name: 4 Has any other objective evidence that Kaspersky software is not installed on the device been provided? ***YES – please: YES*** NO N/A Insert File Name: Insert 3 rd Party Name: 5 Has at least one of the above items been shown as a YES? **** NO – applicant failed to provide sufficient proof – application filing is rejected. YES NO**** Note: Files containing confidential operational details can be kept long-term confidential on applicant’s request.

Rewindpix LLC U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Rewindpix LLC Address: 326 I Street, Fremont, CA, 94536, United State. FRN: 0037704889 Contact Name: Xiao Liu Tel.: 341 465 7290 Email: [email protected] This letter is to confirm that we (“the Designated U.S. Agent”) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: 2025/12/25 Signed by (Printed Name/Title): Xiao Liu / Founder/CEO The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Rewindpix LLC Grantee Code: 2BTGZ FCC ID: 2BTGZ-PS135 Contact Name: Xiao Liu Street Address: 326 I Street, Fremont, CA, 94536, United State. Telephone No: 341 465 7290 Email: [email protected] FRN: 0037704889 Applicant Signature: Date: 2025/12/25 Signed by (Printed Name/Title): Xiao Liu / Founder/CEO

Rewindpix LLC 2025/12/25 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2BTGZ-PS135 [ Rewindpix LLC] (“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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, Client’s signature: Client’s name / title : Xiao Liu / Founder/CEO Contact information / address: Rewindpix LLC / 326 I Street, Fremont, CA, 94536, United State. Rewindpix LLC 2025/12/25 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID: 2BTGZ-PS135 [ Rewindpix LLC] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Client’s signature: Client’s name / title : Xiao Liu / Founder/CEO Contact information / address: Rewindpix LLC / 326 I Street, Fremont, CA, 94536, United State.

Rewindpix LLC 2025/12/25 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR Product Name: Rewindpix Camera FCCID: 2BTGZ-PS135 Model(s): PS135 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Xiao Liu / Founder/CEO Contact information / address: Rewindpix LLC / 326 I Street, Fremont, CA, 94536, United State.

Rewindpix LLC 2025/12/25 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION Product Name: Rewindpix Camera FCCID: 2BTGZ-PS135 Model(s): PS135 To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen STS Test Services Co., Ltd. to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title : Xiao Liu / Founder/CEO Contact information / address: Rewindpix LLC / 326 I Street, Fremont, CA, 94536, United State.

External Photos

Size:40mm*20mm Label location

Internal Photos ANT

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. MPE Report Report No.: STS2512479H01 Issued for Rewindpix LLC 326 I Street, Fremont, CA, 94536, United State. Product Name: Rewindpix Camera Brand Name: Rewindpix,, Model Name: PS135 Series Model(s): N/A FCC ID: 2BTGZ-PS135 Test Standards: FCC 47CFR §2.1093 Page 2 of 8 Report No.: STS2512479H01 TEST REPORT Applicant’s Name ................. : Rewindpix LLC Address .................................. : 326 I Street, Fremont, CA, 94536, United State. Manufacturer's Name .......... : Rewindpix LLC Address .................................. : 326 I Street, Fremont, CA, 94536, United State. Product Description Product Name ........................ : Rewindpix Camera Brand Name ........................... : Rewindpix,, Model Name........................... : PS135 Series Model(s) ...................... : N/A Test Standards ..................... : FCC 47CFR §2.1093 447498 D01 Interim General RF Exposure Guidance v06 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Date of Test ............................................ : Date of receipt of test item ...................... : 2025-12-12 Date (s) of performance of tests.............. : 2025-12-12 to 2025-12-24 Date of Issue ........................................... : 2025-12-24 Test Result ............................................... : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 8 Report No.: STS2512479H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 8 Page 4 of 8 Report No.: STS2512479H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 2025-12-24 STS2512479H01 ALL Initial Issue Page 5 of 8 Report No.: STS2512479H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Rewindpix Camera Brand Name Rewindpix,, Model Name PS135 Series Model(s) N/A Model Difference N/A Product Description The EUT is Rewindpix Camera Operation Frequency: 802.11b/g/n 20: 2412~2462 MHz 802.11n40:2422~2452MHz Modulation Type: 802.11b(DSSS):CCK,DQPSK,DBPSK 802.11g(OFDM):BPSK,QPSK,16-QAM,64-QAM 802.11n(OFDM):BPSK,QPSK,16-QAM,64-QAM Bit Rate of Transmitter: 802.11b:11/5.5/2/1 Mbps 802.11g:54/48/36/24/18/12/9/6Mbps 802.11n(20MHz): 65/58.5/52/39/26/19.5/13/6.5Mbps 802.11n(40MHz): 135/121.5/108/81/54/40.5/37/13.5Mbps Number of Channel: 802.11b/g/n20: 11CH 802.11n 40: 7CH Antenna Type: Internal antenna Antenna Gain (dBi): 0.57 Power Rating DC 5V/1A Adapter N/A Battery DC 3.7V,1200mAh Hardware Version N/A Software Version N/A 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 8 Report No.: STS2512479H01 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in KDB 447498 D01 General RF Exposure Guidance v06 is followed. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. 2.2 LIMIT Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. Page 7 of 8 Report No.: STS2512479H01 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] • [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,where f(GHz) is the RF channel transmit frequency in GHz. Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Page 8 of 8 Report No.: STS2512479H01 2.3 TEST RESULT Maximum measured transmitter power. Worst Case Mode frequency Maximum Output Power Tune up tolerance Max Tune up GHz dBm dBm dBm WIFI(802.11b) 2.437 8.69 8±1 9 Evaluation Result Mode Frequency Antenna Distance RF output power including tune up (dBm) SAR Test Exclusion Threshold SAR Test Exclusion Estimated SAR GHz mm dBm mw WIFI(802.11b) 2.437 5 9 7.94 2.48 Yes / Multiple transmission: WIFI =2.48＜3 Note: 1. Remark: The worst case gain of the antenna is 0.57dBi. 2. Threshold at which no SAR required is 2.78192≤ 3.0 for 1-g SAR, Separation distance ≤ 5mm. ※※※※※END OF THE REPORT※※※※※

深圳市鑫恒阳科技有限公司 u概要（Summary） u项目信息（Project information） u测试设备（Test Equipment） u机台图片 Machine image u实际测试图片（test photo） u主板匹配电路（Main board matching circuit） u天线位置（ANT Location） uReturn Loss&VSWR u辐射方向图（Radiation pattern） u无源效率、增益测试报告（Passive efficiency and gain test report） u环境处理（Environmental treatment） u总结（Summarize） 目录（List） 鑫恒阳天线测试数据报告 u项目信息（Project information） 客户名CUSTOMER NAME: 林升科技 项目名PRODUCT NAME:X92 研发（R&D）: 肖谭平 日期DATE:2025/07/24 1.有源测试：支持2.3.4.5G制式多模式测量 NB-loT, eMTC,CAT- 1,Bluetooth1-5 ，WIFI802.11 abgn,可测TRP TIS 2.无源测试：可测试增益，效率 3.TWS耳机测试头模 全套人头手 一. 测试设备（Test Equipment） 深圳市鑫恒阳科技有限公司 深圳市鑫恒阳科技有限公司 二. 机台图片 Machine image 深圳市鑫恒阳科技有限公司 Definition of darkroom coordinate axis: H: XY axis E1: XZ axis E2: YZ axis 三. 实际测试图片（test photo） H面 E1面 E2面 深圳市鑫恒阳科技有限公司 四. 主板匹配电路（Main board matching circuit） 1.8nh 0.5pf Antenna 3.9NH 0Ω GND GND RF Switch GND 深圳市鑫恒阳科技有限公司 五.天线位置（ANT Location） X7陶瓷 六.Return Loss&VSWR 深圳市鑫恒阳科技有限公司 七.辐射方向图（Radiation pattern） 深圳市鑫恒阳科技有限公司 2400MHZ 七.辐射方向图（Radiation pattern） 深圳市鑫恒阳科技有限公司 2450MHZ 七.辐射方向图（Radiation pattern） 深圳市鑫恒阳科技有限公司 2500MHZ 八.无源效率、增益（Passive efficiency and gain ） 深圳市鑫恒阳科技有限公司 2400MHZ-2500MHZ Frequency (MHz) Gain (dBi) Efficiency (%) 2400 -1.11 31.54 2410 -0.42 36.05 2420 -0.15 38.40 2430 0.30 43.96 2440 0.23 43.24 2450 0.57 45.45 2460 0.50 44.93 2470 -0.16 41.58 2480 -0.77 41.24 2490 -1.22 39.38 2500 -1.65 36.61 九.环境处理 深圳市鑫恒阳科技有限公司 机器原环境，未做处理 深圳市鑫恒阳科技有限公司 十.总结（Summarize） 总结： 1，以上数据是最新改板天线测试所得。 谢 谢 如有疑问，请电话沟通 17347352784 [email protected] 深圳市鑫恒阳科技有限公司

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.: STS2512479W01 Issued for Rewindpix LLC 326 I Street, Fremont, CA, 94536, United State. Product Name: Rewindpix Camera Brand Name: Rewindpix,, Model Name: PS135 Series Model(s): N/A FCC ID: 2BTGZ-PS135 Test Standards: FCC Part15.247 Page 2 of 80 Report No.: STS2512479W01 TEST REPORT Applicant’s Name ................. : Rewindpix LLC Address ................................. : 326 I Street, Fremont, CA, 94536, United State. Manufacturer's Name ........... : Rewindpix LLC Address ................................. : 326 I Street, Fremont, CA, 94536, United State. Product Description Product Name ........................ : Rewindpix Camera Brand Name ........................... : Rewindpix,, Model Name .......................... : PS135 Series Model(s) .................... : N/A Standards ............................. : FCC Part 15.247 Test Procedure........................: ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 2025-12-12 Date (s) of performance of tests ............. : 2025-12-12 to 2026-01-09 Date of Issue .......................................... : 2026-01-09 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 80 Report No.: STS2512479W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 9 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 10 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 11 RF RADIATION TEST EQUIPMENT 11 3. EMC EMISSION TEST 12 3.1 CONDUCTED EMISSION MEASUREMENT 12 3.2 RADIATED EMISSION MEASUREMENT 16 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 33 4.1 LIMIT 33 4.2 TEST PROCEDURE 33 4.3 DEVIATION FROM STANDARD 33 4.4 TEST SETUP 33 4.5 EUT OPERATION CONDITIONS 33 4.6 TEST RESULTS 33 5. POWER SPECTRAL DENSITY TEST 34 5.1 LIMIT 34 5.2 TEST PROCEDURE 34 5.3 DEVIATION FROM STANDARD 34 5.4 TEST SETUP 34 5.5 EUT OPERATION CONDITIONS 34 5.6 TEST RESULTS 34 6. BANDWIDTH TEST 35 6.1 LIMIT 35 6.2 TEST PROCEDURE 35 6.3 DEVIATION FROM STANDARD 35 Page 4 of 80 Report No.: STS2512479W01 Table of Contents Page 6.4 TEST SETUP 35 6.5 EUT OPERATION CONDITIONS 35 6.6 TEST RESULTS 35 7. PEAK OUTPUT POWER TEST 36 7.1 LIMIT 36 7.2 TEST PROCEDURE 36 7.3 DEVIATION FROM STANDARD 36 7.4 TEST SETUP 36 7.5 EUT OPERATION CONDITIONS 36 7.6 TEST RESULTS 36 8. ANTENNA REQUIREMENT 37 8.1 STANDARD REQUIREMENT 37 8.2 EUT ANTENNA 37 APPENDIX 1-TEST DATA 38 DUTY CYCLE 38 MAXIMUM CONDUCTED OUTPUT POWER 44 -6DB BANDWIDTH 45 MAXIMUM POWER SPECTRAL DENSITY LEVEL 52 BAND EDGE 59 CONDUCTED RF SPURIOUS EMISSION 68 APPENDIX 2-PHOTOS OF TEST SETUP 80 Page 5 of 80 Report No.: STS2512479W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 2026-01-09 STS2512479W01 ALL Initial Issue Page 6 of 80 Report No.: STS2512479W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted Band Edge Emission PASS -- Part 15.247(d)/ part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. (3) This product is a DC device and is not suitable for this test. Page 7 of 80 Report No.: STS2512479W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.751dB 2 Unwanted Emissions, conducted ±2.888dB 3 All emissions, radiated 9K-30MHz ±2.48dB 4 All emissions, radiated 30M-1GHz ±2.52dB 5 All emissions, radiated 1G-18GHz ±3.48dB 6 All emissions, radiated>18GHz ±4.18dB 7 Conducted Emission (9KHz-150KHz) ±2.48dB 8 Conducted Emission (150KHz-30MHz) ±2.52dB 9 Occupied Channel Bandwidth ±3.6% 10 Power Spectral Density, conducted ±1.214dB 11 Duty Cycle ±3.2% Page 8 of 80 Report No.: STS2512479W01 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name Rewindpix Camera Brand Name Rewindpix,, Model Name PS135 Series Model(s) N/A Model Difference N/A Product Description The EUT is a Rewindpix Camera Operation Frequency: 802.11b/g/n 20: 2412~2462 MHz 802.11n40:2422~2452MHz Modulation Type: 802.11b(DSSS):CCK,DQPSK,DBPSK 802.11g(OFDM):BPSK,QPSK,16-QAM,64-QAM…

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Page 1 of 2 IC: 34910-PS135 FCC ID: 2BTGZ-PS135 Setup photo AC Conduction RE (Below 1GHz) Page 2 of 2 IC: 34910-PS135 FCC ID: 2BTGZ-PS135 RE (Above 1GHz)