2BHL5-V0050chameleon ultra

Attestation Statements (July 16, 2024) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID: 2BHL5-V0050 ) (Shenzhen Guanfeiteng dianzi shangwu youxiangongsi), the undersigned, hereby authorize (NEWENERGYER LIMITED) to act as our designated U.S. agent for service of process, (Shenzhen Guanfeiteng dianzi shangwu youxiangongsi) accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. (NEWENERGYER LIMITED) accepts the responsibility to act as designated U.S. agent for service of process, provides an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Information： Company name: Shenzhen Guanfeiteng dianzi shangwu youxiangongsi Contact Name: yafei wang Address: Hongteng business building, NO.6,1st Street, Yuanlin Road, Dongguan, Guangdong 523570 CN Telephone No: 13538214502 Email: [email protected] FRN: 0035694116 Signature [yafei wang] U.S. Agent Information: Company Name: NEWENERGYER LIMITED Address: 1818 S Patton Ct, Denver, CO, 80219 Contact Name: CHUN LIU Telephone No: 213 289 5042 Email: [email protected] FRN: 0034665885 Signature [CHUN LIU]

(Shenzhen Guanfeiteng dianzi shangwu youxiangongsi) (July 16, 2024) 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: 2BHL5-V0050) [Shenzhen Guanfeiteng dianzi shangwu youxiangongsi] (“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) yafei wang (Shenzhen Guanfeiteng dianzi shangwu youxiangongsi) (July 16, 2024) 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: 2BHL5-V0050) [Shenzhen Guanfeiteng dianzi shangwu youxiangongsi] (“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) yafei wang

Shenzhen Guanfeiteng dianzi shangwu youxiangongsi Model Difference Data：July 16, 2024 Product description: chameleon ultra Model name: V0050, 9S-ZTSF-G6M3, V0057 Trade Name:N/A FCC ID: 2BHL5-V0050 All the model are the same circuit and RF module, only different for model name. Regards Sincerely Client’s signature : Client’s name / title : yafei wang（General Manager） Contact information / address：Hongteng business building, NO.6,1st Street, Yuanlin Road, Dongguan, Guangdong 523570 CN

Shenzhen Guanfeiteng dianzi shangwu youxiangongsi (July 16, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (chameleon ultra / V0050, 9S-ZTSF- G6M3, V0057/ FCC ID: 2BHL5-V0050) 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 Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Signature: Name: yafei wang Title: General Manager

Shenzhen Guanfeiteng dianzi shangwu youxiangongsi (July 16, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology 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, Signature: Name: yafei wang Title: General Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: V0050 External Photos BT ANT 125K ANT Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 3 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 3

FCC ID LABEL: Label Location: FCC ID: 2BHL5-V0050 Model No.: V0050

Shenzhen CTB Testing Co., Ltd. FCC ID:2BHL5-V0050 Portable device For § 2.1093-Portable devices below 4 MHz and down to 100 kHz, the MPE limits in § 1.1310 (with the 300 kHz limit applicable all the way down to 100 kHz) can be used for the purpose of equipment authorization in lieu of SAR evaluations. E-Filed Strength at 4 cm from the edges surrounding the EUT (V/m) Frequency Range (MHz) Test Position A Test Position B Test Position C Test Position D Limits (V/m) 0.125 8.13 7.54 7.66 8.19 614 E-Filed Strength at 4 cm from the top of the EUT (V/m) Frequency Range (MHz) Test Position E Limits (V/m) 0.125 8.09 614 H-Filed Strength at 4 cm from the edges surrounding the EUT (A/m) Frequency Range (MHz) Test Position A Test Position B Test Position C Test Position D Limits (A/m) 0.125 0.49 0.51 0.51 0.48 1.63 H-Filed Strength at 4 cm from the top of the EUT (A/m) Frequency Range (MHz) Test Position E Limits (A/m) 0.125 0.53 1.63 Shenzhen CTB Testing Co., Ltd. E-Filed Strength at 2 cm from the edges surrounding the EUT (V/m) Frequency Range (MHz) Test Position A Test Position B Test Position C Test Position D Limits (V/m) 0.125 7.41 7.55 8.12 7.94 614 E-Filed Strength at 2 cm from the top of the EUT (V/m) Frequency Range (MHz) Test Position E Limits (V/m) 0.125 7.86 614 H-Filed Strength at 2 cm from the edges surrounding the EUT (A/m) Frequency Range (MHz) Test Position A Test Position B Test Position C Test Position D Limits (A/m) 0.125 0.52 0.52 0.55 0.55 1.63 H-Filed Strength at 2 cm from the top of the EUT (A/m) Frequency Range (MHz) Test Position E Limits (A/m) 0.125 0.55 1.63 Shenzhen CTB Testing Co., Ltd. The probe center is 1.65cm from the coil surface, according to KDB 680106, date at 0cm must be estimated through a modle, and then the model must be validated with the actual measurements at 2cm. Using Biot-Savart Law, the value of 2cm can be estimated through the test result of 4cm H-Filed Strength at 2 cm from the edges surrounding the EUT (A/m) Frequency Range (MHz) Test Position A Test Position B Test Position C Test Position D Limits (A/m) 0.125 0.55 0.55 0.56 0.55 1.63 H-Filed Strength at 2 cm from the top of the EUT (A/m) Frequency Range (MHz) Test Position E Limits (A/m) 0.125 0.56 1.63 Using Biot-Savart Law, the value of 0cm can be estimated through the test result of 2cm H-Filed Strength at 0 cm from the edges surrounding the EUT (A/m) Frequency Range (MHz) Test Position A Test Position B Test Position C Test Position D Limits (A/m) 0.125 0.58 0.58 0.56 0.58 1.63 H-Filed Strength at 0 cm from the top of the EUT (A/m) Frequency Range (MHz) Test Position E Limits (A/m) 0.125 0.59 1.63 The difference between measurements and estimates is no more than 30% So the estimates in 0cm is ok

ANT PHTOT All measurements were performed radiated and therefore additional antenna gain documentation is not required.

TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. 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 CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: chameleon ultra FCC ID: 2BHL5-V0050 Trademark: N/A Model Number: V0050, 9S-ZTSF-G6M3, V0057 Prepared For: Shenzhen Guanfeiteng dianzi shangwu youxiangongsi Address: Hongteng business building, NO.6,1st Street, Yuanlin Road, Dongguan, Guangdong 523570 CN Manufacturer: Shenzhen Guanfeiteng dianzi shangwu youxiangongsi Address: Hongteng business building, NO.6,1st Street, Yuanlin Road, Dongguan, Guangdong 523570 CN Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Jun. 21, 2024 Sample tested Date: Jun. 21, 2024 to Jul. 03, 2024 Issue Date: Jul. 03, 2024 Report No.: CTB240703029RFX Test Standards FCC Part 15 C Test Results PASS Remark: This is 125kHz test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240703029RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 21 TABLE OF CONTENTS 1. GENERAL INFORMATION .......................................................................................................................... 3 1.1. Report information ................................................................................................................................... 3 1.2. Measurement Uncertainty ....................................................................................................................... 3 1.3. Test Facility ............................................................................................................................................. 3 1.4. Test Uncertainty ...................................................................................................................................... 4 2. PRODUCT DESCRIPTION ........................................................................................................................... 5 2.1. EUT Description ...................................................................................................................................... 5 2.2. Block Diagram of EUT Configuration ...................................................................................................... 5 2.3. Test Conditions........................................................................................................................................ 5 2.4. DescriptionOfSupport Units (Conducted Mode) ...................................................................................... 5 3. TEST RESULTS SUMMARY ........................................................................................................................ 6 4. TEST EQUIPMENT USED ............................................................................................................................ 7 4.1. MEASUREMENT INSTRUMENTS LIST ................................................................................................. 7 5. CONDUCTED EMISSION TEST................................................................................................................... 9 5.1. Block Diagram of Test Setup ................................................................................................................... 9 5.2. Test Standard .......................................................................................................................................... 9 5.3. Conducted Emission Limit ....................................................................................................................... 9 5.4. EUT Configuration on Test ...................................................................................................................... 9 5.5. Operating Condition of EUT .................................................................................................................... 9 5.6. Test Procedure ...................................................................................................................................... 10 5.7. Test Result ............................................................................................................................................ 10 6. RADIATED EMISSION MEASUREMENT .................................................................................................. 13 6.1. Block Diagram of Test Setup ................................................................................................................. 13 6.2. Test Standard ........................................................................................................................................ 14 6.3. EMI Test Receiver Setup ...................................................................................................................... 14 6.4. Test Procedure ...................................................................................................................................... 14 6.5. Test Result ............................................................................................................................................ 14 7. OCCUPIED BANDWIDTH .......................................................................................................................... 18 7.1. Block Diagram of Test Setup .…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: V0050 Radiated Emission Below 1G 9KHz-30MHz Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Above 1G Conducted emissions

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: V0050 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2