2BGZW-T635Bluetooth transmitter

FCC Caution. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. FCC Radiation Exposure Statement: The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: Mar. 25, 26 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: [2BGZW-T635] [Xiamen Lanse Tianchen Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, [BLAFILI INC.] (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts 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 it is our responsibility to inform the FCC whenever the agent information changes. [BLAFILI INC.] ("the agent) understand it is the 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 email address. Designated U.S. Agent Company Name: BLAFILI INC. FRN: 0035553080 Address: 157 Lorraine Loop, Staten Island, NY 10309, United States Signature: Contact Person: Wenzao Li Tel: 347-517-7092 Email: [email protected] Applicant Company Name: Xiamen Lanse Tianchen Technology Co., Ltd. FRN: 0035558444 Address: Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Signature: Contact Person: Jianguang Wang Tel: 18123653842 Email: [email protected]

Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: March 25, 2026 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BGZW-T635 Xiamen Lanse Tianchen Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Jianguang Wang Title: PM Address: Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Tel.: 18123653842 Email: [email protected]

Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Mar. 25, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: 2BGZW-T635 Product Name: Bluetooth transmitter This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Printed Name: Jianguang Wang Title: PM Address: Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Tel.: 18123653842 Email: [email protected] Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check SBOM (Software Bill of Materials) [For Device is not Inherent compliance] Section Component Name Version Supplier 1 2 3

Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China (March 25, 2026) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BGZW-T635 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below : ⎯ Block Diagram ⎯ Schematics ⎯ Operational Description ⎯ Tune-Up Procedure / Parts List ⎯ SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES ⎯ (Etc.) The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Pursuant to DA 04-1705, the applicant also requests temporary confidential treatment of the exhibits outlined below for a period of (up to 180) days from the date of equipment authorization and prior to marketing in the United States to prevent the premature release of any sensitive information. Applicant is aware of their responsibility to notify DERYCOM in the event information regarding the product or the product is made available to the public before the requested period has expired. ⎯ User Manual ⎯ Internal Photos ⎯ External Photos ⎯ Test Setup Photos ⎯ (Etc.) Sincerely, (Signature) Title: PM Address: Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Tel.: 18123653842 Email: [email protected]

Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China (March 25, 2026) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BGZW-T635 I, the undersigned, hereby authorize (Shenzhen LGT Test Service Co., Ltd.) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (Shenzhen LGT Test Service Co., Ltd.)shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with (Xiamen Lanse Tianchen Technology Co., Ltd.). We 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. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, (Signature) (Full name of contact person listed on FCC’s website) Jianguang Wang (Title) PM Tel: 18123653842 Fax: 18123653842 Email: [email protected]

Data Reuse Justification Name and address of the Manufacturer Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China We are applying data reuse for FCC ID: 2BGZW-T635 (Variant) of DTS/SAR based on reference FCC ID: 2BGZW-BICAST (Reference). FCC ID: 2BGZW-T635 is the variant from FCC ID: 2BGZW-BICAST. They have the same dimension and share the same PCB layout, antennas and components Bluetooth. Only updated port, software and model name. Only has below difference: 1. FCC ID: 2BGZW-T635 updated port, software and model name. 2. FCC ID: 2BGZW-T635 added, based on the above changes, we will verify the following Reference Device Variant Device Key differences Bluetooth transmitter Bluetooth transmitter updated port, software Equipme nt Class Rule Part Test item Data Referencing Comments DTS 15.207 AC Power Line Conducted Emission N Retest 15.247 (b)(3) Conducted Output Power Y Pointer to spot- check exhibit 15.247 (a)(2) DTS (6 dB) Bandwidth & 99% Occupied Bandwidth Y Pointer to spot- check exhibit 15.247 (e) Power Spectral Density Y Pointer to spot- check exhibit 15.247(d) Band-edge for RF Conducted Emissions Y Pointer to spot- check exhibit 15.247(d) RF Conducted Spurious Emissions Y Pointer to spot- check exhibit 15.205/15.209 Radiated Spurious Emissions N Retest 15.205/15.209 Restricted bands around fundamental frequency (Radiated Emission) N Retest d dB =2.32 d dBmax =3.385 d dB < d dBmax , Reuse compliance SAR 2.1093 Estimated SAR Y Pointer to spot- check exhibit

Page 1 of 4 Report No.: LGT26C157 Appendix - External Photographs of EUT Constructional Details Photo 1 Photo 2 Page 2 of 4 Report No.: LGT26C157 Appendix - External Photographs of EUT Constructional Details Photo 3 Photo 4 Page 3 of 4 Report No.: LGT26C157 Appendix - External Photographs of EUT Constructional Details Photo 5 Photo 6 Page 4 of 4 Report No.: LGT26C157 Appendix - External Photographs of EUT Constructional Details Photo 7 Photo 8

Label Size: 10*20mm FCC ID: 2BGZW-T635

Page 1 of 4 Report No.: LGT26C157 Appendix - Internal Photographs of EUT Constructional Details Photo 1 Photo 2 Page 2 of 4 Report No.: LGT26C157 Appendix - Internal Photographs of EUT Constructional Details Photo 3 Photo 4 ANT Page 3 of 4 Report No.: LGT26C157 Appendix - Internal Photographs of EUT Constructional Details Photo 5 Photo 6 Page 4 of 4 Report No.: LGT26C157 Appendix - Internal Photographs of EUT Constructional Details Photo 7 Photo 8

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Shenzhen LGT Test Service Co., Ltd. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Page 1 of 8 EMF TEST REPORT Product Name: Bluetooth transmitter Model Number: blafili T6.35 FCC ID: 2BGZW-T635 Issued For : Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Report Number: LGT26C157HA01 Sample Received Date: Dec. 03, 2025 Date of Test: Dec. 03, 2025 ~ Mar. 23, 2026 Date of Issue: Mar. 24, 2026 Report No.: LGT26C157HA01 Page 2 of 8 TEST REPORT CERTIFICATION Applicant: Xiamen Lanse Tianchen Technology Co., Ltd. Address: Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Manufacturer: Xiamen Lanse Tianchen Technology Co., Ltd. Address: Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Product Name: Bluetooth transmitter Trademark: blafili Model Number: blafili T6.35 Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC 47 CFR §2.1093 KDB 447498 D01 General RF Exposure Guidance v06 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT26C157HA01 Page 3 of 8 TABLE OF CONTENTS 1 . GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST LABORATORY 5 2 . FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 8 Report No.: LGT26C157HA01 Page 4 of 8 Revision History Rev. Issue Date Revisions 00 Mar. 24, 2026 Initial Issue Note: FCC ID: 2BGZW-T635 is the variant from FCC ID: 2BGZW-BICAST. They have the same dimension and share the same PCB layout, antennas and components in Bluetooth. Only updated port, software and model name. Report No.: LGT26C157HA01 Page 5 of 8 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name: Bluetooth transmitter Test Model Number: blafili T6.35 Series Number: N/A Model Difference: N/A Frequency Bands: Bluetooth 2402-2480MHz Rating: Input: DC 5V 500mA Battery: Capacity: 320mAh Rated Voltage: 3.7V Hardware Version: N/A Software Version: N/A 1.2 TEST LABORATORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Accreditation Certificate: FCC Registration No.: 746540 CAB ID: CN0136 Report No.: LGT26C157HA01 Page 6 of 8 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. Report No.: LGT26C157HA01 Page 7 of 8 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. Report No.: LGT26C157HA01 Page 8 of 8 2.3 TEST RESULT Turn up Result Mode Turn up Power BLE 1M-GFSK -5.5±1.5dBm BLE 2M-GFSK -5.5±1.5dBm The MPE result of worst mode: RF Function Frequency (MHz) Max Turn up Power (dBm) Max Turn up Power (mW) Estimated SAR Limit Ratio Result BLE 2440 -4.50 0.35 0.111 3 0.037 Pass Note: 1. The Maximum Power Density is less than the limit, complies with the exemption requirements. ※※※※※END OF THE REPORT※※※※※

1.Electrical Characteristics ItemSpecification Modelblafili BiCast Manufacturer Shenzhen Tai Yilinan Scienc e & Technology Co.,Ltd TypePCB Meander Line Antenna Central frequency2.441 GHz Bandwidth78 MHz (Typical value) Gain1dBi PolarizationLinear VSWR2 max. Azimuth BandwithOmni-directional Impedance50Ω Rated Power (max.)4dBm Maximum Input Power10dBm Operation Temperature-40 C ~ +85 C 2.The suggestion of matching circuit 3. The Measurement of S-Parameter and VSWR Frequency(GHz)S11(dB) 2.402-10.24 2.441-24.02 2.480-10.74 Frequency(GHz)VSWR 2.4021.88 2.4411.13 2.4801.81 The reference: Return Loss -6.02dB -7.36dB -10dB -13dB -20dB VSWR 32.5 1.92 1.576 1.22 Return Power Ratio 25% 18.37% 10% 5% 0.98%

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Shenzhen LGT Test Service Co., Ltd. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Page 1 of 53 RF TEST REPORT Product Name: Bluetooth transmitter Model Number: blafili T6.35 FCC ID: 2BGZW-T635 Issued For : Xiamen Lanse Tianchen Technology Co., Ltd. Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Report Number: LGT26C157HA01 Sample Received Date: Dec. 03, 2025 Date of Test: Dec. 03, 2025 ~ Mar. 23, 2026 Date of Issue: Mar. 24, 2026 Report No.: LGT26C157RF01 Page 2 of 53 TEST REPORT CERTIFICATION Applicant: Xiamen Lanse Tianchen Technology Co., Ltd. Address: Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Manufacturer: Xiamen Lanse Tianchen Technology Co., Ltd. Address: Room 201, No. 149 Qianpu, Qianpu Community, Siming District, Xiamen,Fujian, China Product Name: Bluetooth transmitter Trademark: blafili Model Number: blafili T6.35 Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC Part 15.247, Subpart C ANSI C63.10-2020 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT26C157RF01 Page 3 of 53 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST LABORATORY 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 9 2.4 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 10 2.5 EQUIPMENTS LIST 11 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 TEST PROCEDURE 14 3.3 TEST SETUP 14 3.4 EUT OPERATING CONDITIONS 14 3.5 TEST RESULTS 15 4. RADIATED EMISSION MEASUREMENT 17 4.1 RADIATED EMISSION LIMITS 17 4.2 TEST PROCEDURE 19 4.3 TEST SETUP 19 4.4 EUT OPERATING CONDITIONS 20 4.5 FIELD STRENGTH CALCULATION 20 4.6 TEST RESULTS (BAND EDGE REQUIREMENTS) 26 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 27 5.1 LIMIT 27 5.2 TEST PROCEDURE 27 5.3 TEST SETUP 27 5.4 EUT OPERATION CONDITIONS 27 5.5 TEST RESULTS 27 6. POWER SPECTRAL DENSITY TEST 28 6.1 LIMIT 28 6.2 TEST PROCEDURE 28 6.3 TEST SETUP 28 6.4 EUT OPERATION CONDITIONS 28 Report No.: LGT26C157RF01 Page 4 of 53 6.5 TEST RESULTS 28 7. BANDWIDTH TEST 29 7.1 LIMIT 29 7.2 TEST PROCEDURE 29 7.3 TEST SETUP 29 7.4 EUT OPERATION CONDITIONS 29 7.5 TEST RESULTS 29 8. PEAK OUTPUT POWER TEST 30 8.1 LIMIT 30 8.2 TEST PROCEDURE 30 8.3 TEST SETUP 30 8.4 EUT OPERATION CONDITIONS 30 8.5 TEST RESULTS 30 9. ANTENNA REQUIREMENT 31 9.1 STANDARD REQUIREMENT 31 9.2 EUT ANTENNA 31 APPENDIX I - TEST RESULTS 32 1. DUTY CYCLE 32 2. BANDWIDTH 35 3. MAXIMUM CONDUCTED OUTPUT POWER 40 4. MAXIMUM POWER SPECTRAL DENSITY 43 5. UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS 46 APPENDIX II - MEASUREMENT PHOTOS 53 Report No.: LGT26C157RF01 Page 5 of 53 Revision History Rev. Issue Date Revisions 00 Mar. 24, 2026 Initial Issue Report No.: LGT26C157RF01 Page 6 of 53 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 Part 15.247 Meas Guidance v05r02. FCC Part 15.247, Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS Retest 15.247 (a)(2) 6dB Bandwidth PASS Data reuse of FCC ID: 2BGZW-BICAST 15.247 (b)(3) Output Power PASS Data reuse of FCC ID: 2BGZW-BICAST 15.209 Radiated Spurious Emission PASS Retest 15.247 (d) Conducted Spurious & Band Edge Emission PASS Data reuse of FCC ID: 2BGZW-BICAST 15.247 (e) Power Spectral Density PASS Data reuse of FCC ID: 2BGZW-BICAST 15.205 Restricted Band Edge Emission PASS Data reuse of FCC ID: 2BGZW-BICAST Part 15.247(d)/ Part 15.209(a) Band Edge Emission PASS Data reuse of FCC ID: 2BGZW-BICAST 15.203 Antenna Requirement PASS Data reuse of FCC ID: 2BGZW-BICAST NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. (3) FCC ID: 2BGZW-T635 is the variant from FCC ID: 2BGZW-BICAST. They have the same dimension and share the same PCB layout, antennas and components in Bluetooth. Only updated port, software and model name. Report No.: LGT26C157RF01 Page 7 of 53 1.1 TEST LABORATORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Accreditation Certificate: FCC Registration No.: 746540 CAB ID: CN0136 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 Occupied Channel Bandwidth ±0.46% 2 RF Output Power, Conducted ±0.71dB 3 Power Spectral Density, Conducted ±1.57dB 4 Unwanted Emission, Conducted ±0.63dB 5 Conducted emission ±2.80dB 6 All Emissions, Radiated (0.009-30MHz) ±2.16dB 7 All Emissions, Radiated (30MHz-1GHz) ±4.61dB 8 All Emissions, Radiated (1GHz-18GHz) ±5.49dB 9 Temperature ±0.5°C 10 Humidity ±2% 11 Duty Cycle ±2.3% Note: The measurement uncertainty is not included in the test result. Report No.: LGT26C157RF01 Page 8 of 53 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name: Bluetooth transmitter Test Model Number: blafili T6.35 Series Number: N/A Model Difference: N/A Product Description: Operation Frequency: 2402~2480 MHz Modulation Type: GFSK Radio Technology: BLE Bluetooth Confi…

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Page 1 of 2 Report No.: LGT26C157 Appendix - Test Setup photos Set-up for Radiated Spurious Emission, Below 1GHz Set-up for Radiated Spurious Emission, Above 1GHz Page 2 of 2 Report No.: LGT26C157 Set-up for Conducted Emission