2A8ME-S5TFM01Telesin Portable Fog Machine

Shenzhen Telesin Digital Ltd U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: AOCE Corporation Inc. FRN: 0033401381 Contact Name: Johnson.wang Address: 6547 N Academy Bivd #2266, Colorado Springs, CO,80918 United States Telephone No: +1-346-582-5234 Email: [email protected] This letter is to confirm that we (AOCE Corporation Inc.) 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: 2024-08-09 Signed by (Printed Name/Title): 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: Shenzhen Telesin Digital Ltd FRN: 0032855728 FCC ID: 2A8ME-S5TFM01 Contact Name: Hai Liang Xie Address: Room 526, 5/F, Block B, Bairuida Building, Vanke City Community, Bantian Street, Longgang District, Shenzhen, Guangdong, China. 518000 Telephone No: 13450116503 Email: [email protected] Applicant Signature: Date: 2024-08-09 Signed by (Printed Name/Title): Hai Liang Xie / Manager

Shenzhen Telesin Digital Ltd 2024.08.15 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: 2A8ME-S5TFM01 [Shenzhen Telesin Digital Ltd] (“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. Sincerely, (Applicant signature) (Applicant printed name) Hai Liang Xie Shenzhen Telesin Digital Ltd 2024.08.15 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: 2A8ME-S5TFM01 [Shenzhen Telesin Digital Ltd] (“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, (Applicant signature) (Applicant printed name) Hai Liang Xie

Shenzhen Telesin Digital Ltd 2024.08.15 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing 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 : Hai Liang Xie / Manager Contact information / address: Room 526, 5/F, Block B, Bairuida Building, Vanke City Community, Bantian Street, Longgang District, Shenzhen, Guangdong, China. 518000

Shenzhen Telesin Digital Ltd Model Difference 2024-08-15 EUT NAME: Telesin Portable Fog Machine FCC ID: 2A8ME-S5TFM01 MODEL : S5-TFM-01, C20, C40, C60 All the model are the same circuit and RF module, except model names and appearance of the color. Regards Sincerely Client’s signature: Client’s name / title : Hai Liang Xie / Manager Contact information / address: Room 526, 5/F, Block B, Bairuida Building, Vanke City Community, Bantian Street, Longgang District, Shenzhen, Guangdong, China. 518000

Report No.: BCTC2405203056E External Photos Report No.: BCTC2405203056E Report No.: BCTC2405203056E Report No.: BCTC2405203056E Report No.: BCTC2405203056E Report No.: BCTC2405203056E Report No.: BCTC2405203056E Report No.: BCTC2405203056E

Size:20*10mm Telesin Portable Fog Machine FCC ID: 2A8ME-S5TFM01 Label location

Report No.: BCTC2405203056E Internal Photos 2.4GHz TX Antenna Report No.: BCTC2405203056E Report No.: BCTC2405203056E Report No.: BCTC2405203056E Report No.: BCTC2405203056E 2.4GHz RX Antenna Report No.: BCTC2405203056E

RF EXPOSURE EVALUATION METHOD FCC ID: 2A8ME-S5TFM01 Applicable standard： In accordance with FCC 47 CFR part 2 (2.1093) this device has been defined as a portable device which is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. Portable devices must be evaluated using the specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEEC95.1-1992. and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2003. Per FCC KDB 447498 D01 v06, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances s 50 mm are determined by: SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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. Frequency Maximum Conducted Output Power(PK) Conducted Output Power Limit (MHz) (dBm) dBm 2403 -7.805 30 2447 -7.209 30 2472 -6.928 30 max possible output power (PK,conducted)：-7±1dBm -6dBm=0.25mW 2403MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 0.25/5*√2.403=0.078≤3.0 2447MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 0.25/5*√2.447=0.078≤3.0 2472MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 0.25/5*√2.472=0.079≤3.0 Conclusion: 1. [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] < 3.0. 2. SAR Test Exclusion Thresholds is 3.0 for separation distance 5mm. Therefore, SAR test is not required.

No.：BCTC/RF-EMC-005 Page: 1 of 41 Edition：B.2 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2405203056E Applicant: Shenzhen Telesin Digital Ltd Product Name: Telesin Portable Fog Machine Test Model: S5-TFM-01 Tested Date: 2024-05-24 to 2024-08-07 Issued Date: 2024-08-07 Report No.: BCTC2405203056E No.：BCTC/RF-EMC-005 Page: 2 of 41 Edition：B.2 FCC ID: 2A8ME-S5TFM01 The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Telesin Portable Fog Machine Trademark: TELESIN Model/Type reference: S5-TFM-01 C20, C40, C60 Prepared For: Shenzhen Telesin Digital Ltd Address: Room 526, 5/F, Block B, Bairuida Building, Vanke City Community, Bantian Street, Longgang District, Shenzhen, Guangdong, China. 518000 Manufacturer: Shenzhen HUAXUN Industry CO.,LTD Address: A1, 4F, Buliding1, Hongbang Science park, No.30, Cuibao Road Baolong Subdistrict, Longgang District, Shenzhen, Guangdong, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2024-05-24 Sample tested Date: 2024-05-24 to 2024-08-07 Issue Date: 2024-08-07 Report No.: BCTC2405203056E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is SRD-2.4GHz radio test report. Tested by: Approved by: Lei Chen/Project Handler Zero Zhou/Reviewer Report No.: BCTC2405203056E No.：BCTC/RF-EMC-005 Page: 3 of 41 Edition：B.2 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 8 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ............................................................................................................. 9 4.6 Table Of Parameters Of Text Software Setting ................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test Procedure ................................................................................................... 13 6.4 EUT Operating Conditions .................................................................................. 13 6.5 Test Result .......................................................................................................... 14 7. Radiated Emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test Procedure ................................................................................................... 18 7.4 EUT Operating Conditions .................................................................................. 19 7.5 Test Result .......................................................................................................... 19 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 23 8.1 Block Diagram Of Test Setup .............................................................................. 23 8.2 Limit .................................................................................................................... 23 8.3 Test Procedure ................................................................................................... 24 8.4 EUT operating Conditions ................................................................................... 24 8.5 Test Result .......................................................................................................... 25 9. Power Spectral Density Test ............................................................................... 26 9.1 Block Diagram Of Test Setup .............................................................................. 26 9.2 Limit .................................................................................................................... 26 9.3 Test Procedure ................................................................................................... 26 9.4 EUT Operating Conditions .................................................................................. 26 9.5 Test Result ..…

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Report No.: BCTC2405203056E No.：BCTC/RF-EMC-005 Page: 39 of 41 Edition：B.2 15. EUT Test Setup Photographs Conducted Emissions Photo Radiated Measurement Photos Report No.: BCTC2405203056E No.：BCTC/RF-EMC-005 Page: 40 of 41 Edition：B.2