2A7IW-JS270Bluetooth earphone

FCC Statement 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. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: Wilson Tech Service LLC FRN: 0033402033 Contact Name: Wilson Cheung Address: 1312 17th Street Suite 692, Denver, CO, 80202, USA Telephone No: +1-716-965-5112 Email: [email protected] Applicant: Company name: Guangzhou Feiruiteng Electronic Commerce Co. LTD Product Description: Bluetooth earphone Grantee code: 2A7IW FCC ID: 2A7IW-JS270 Contact Name: Peter Peng Address: Room 416, No. 620, Xingnan Avenue, Nancun Town, Panyu District, Guangzhou, China Telephone No: 18565763504 Email: [email protected] [Guangzhou Feiruiteng Electronic Commerce Co. LTD] certifies that, as of the date of this filing of the application with the TCB, [Wilson Tech Service LLC] is our designated US agent for service of process for the above referenced FCC ID. [Guangzhou Feiruiteng Electronic Commerce Co. LTD] 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 equipment. [Wilson Tech Service LLC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2023/04/26 Applicant’s Name: Peter Peng US Agent’s Name: Wilson Cheung Title: Manager Title: Manager Signature: Signature:

C5266091_X24_Ed.1 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Guangzhou Feiruiteng Electronic Commerce Co. LTD Product Description: Bluetooth earphone Grantee code: 2A7IW FCC ID: 2A7IW-JS270 Contact Name: Peter Peng Address: Room 416, No. 620, Xingnan Avenue, Nancun Town, Panyu District, Guangzhou, China Telephone No: 18565763504 Fax No: 18565763504 Email: [email protected] i. [Guangzhou Feiruiteng Electronic Commerce Co. 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. The applicant must sign this certification. ii. [Guangzhou Feiruiteng Electronic Commerce 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 as an entity producing “covered” equipment. The applicant must sign this certification. Date: 2023/04/26 Applicant’s Name: Peter Peng Title: Manager Signature: 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Guangzhou Feiruiteng Electronic Commerce Co. LTD Product Similarity Declaration Company: Guangzhou Feiruiteng Electronic Commerce Co. LTD Address: Room 416, No. 620, Xingnan Avenue, Nancun Town, Panyu District, Guangzhou, China Product Name: Bluetooth earphone Model Number: JS270, GT27, T75, GT280, A520, BT-7, T62, S08, Pro6, F9, X37 FCC Identifier: 2A7IW-JS270 We (Guangzhou Feiruiteng Electronic Commerce Co. LTD) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name and appearance color. Client’s signature Client’s name / title : Peter Peng / Manager Contact information /address: Room 416, No. 620, Xingnan Avenue, Nancun Town, Panyu District, Guangzhou, China Date: 2023-04-26

Guangzhou Feiruiteng Electronic Commerce Co. LTD 1/1 Letter of Authorization Company: Guangzhou Feiruiteng Electronic Commerce Co. LTD Address: Room 416, No. 620, Xingnan Avenue, Nancun Town, Panyu District, Guangzhou Product Name: Bluetooth earphone Model Number: JS270, GT27, T75, GT280, A520, BT-7, T62, S08, Pro6, F9, X37 FCC Identifier: 2A7IW-JS270 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Peter Peng Date: 2023-04-26 Title: Manager Signature of applicant:

Guangzhou Feiruiteng Electronic Commerce Co. LTD 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-04-26 Subject: Request for Confidentiality FCC ID: 2A7IW-JS270 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. 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 No ☐ Internal Photos No ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. 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. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Peter Peng Title: Manager

Size:12*6mm MODEL: JS270 FCC ID: 2A7IW- JS270 Label location

ANT

FCC ID: 2A7IW-JS270 RF Exposure Evaluation According to KDB 447498 D01 V06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 EIRP=E Meas +20log(d Meas )-104.7 EIRPis the equivalent isotropically radiated power, in dBm E Meas is the field strength of the emission at the measurement distance, in dBμV/m d Meas is the measurement distance, in m Here, Field strength (dBuV/m) EIRP (dBm) Max tune-up (mW) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 91.61 -3.550.442 2480 5 0.139 3.0 So a SAR test is not required

詠業科技股份有限公司 UnictronTechnologiesCorporation Website:www.unictron.com THISDRAWINGSANDSPECIFICATIONSARETHE PROPERTYOFUNICTRONTECHNOLOGIES CORPORATIONANDSHALLNOTBEREPRODUCED ORUSEDASTHEBASISFORTHEMANUFACTUREOR SALEOFAPPARATUSORDEVICESWITHOUT PERMISSION Preparedby:XeniaDesignedby:KenCheckedby:MikeApprovedby ： Herbert TITLE：3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChip Antenna(AA055A)EngineeringSpecification DOCUMENT H2U34W1H1Z0400 REV. NO.G PAGE1OF16 H 2 1 4 W H Z 4 ˋ ˋ 4 0 U 3 0 1 0 3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChipAntenna (AA055A)EngineeringSpecification 1.ProductNumber 2.Features *Stableandreliableinperformances *Lowprofile,compactsize *RoHScompliance *SMTprocessescompatible 3.Applications *ISM2.4GHzapplications *ZigBee/BLEapplications *Bluetoothearphonesystems *Hand-helddeviceswhenWiFi/Bluetoothfunctionsareneeded,e.g.,Smartphones *IEEE802.11b/g/n *WirelessPCMCIAcardsorUSBdongles 4.Description Unictron’sAA055AceramicchipantennaisdesignedforISM2.4GHzapplications, coveringfrequencies2400~2500MHz.Fabricatedwithproprietarydesignand processes,AA055AshowsexcellentperformanceandisfullycompatiblewithSMT processeswhichcandecreasetheassemblycostandimprovedevice’squalityand consistency. 詠業科技股份有限公司 UnictronTechnologiesCorporation Website:www.unictron.com THISDRAWINGSANDSPECIFICATIONSARETHE PROPERTYOFUNICTRONTECHNOLOGIES CORPORATIONANDSHALLNOTBEREPRODUCED ORUSEDASTHEBASISFORTHEMANUFACTUREOR SALEOFAPPARATUSORDEVICESWITHOUT PERMISSION Preparedby:XeniaDesignedby:KenCheckedby:MikeApprovedby ： Herbert TITLE：3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChip Antenna(AA055A)EngineeringSpecification DOCUMENT H2U34W1H1Z0400 REV. NO.G PAGE2OF16 5.LayoutGuide&ElectricalSpecifications 5-1.LayoutGuide(unit：mm) SolderLandPattern: Thesolderlandpattern(goldmarkingareas)isshownbelow.Recommendationon matchingcircuitwillbeprovidedaccordingtocustomer’sinstallationconditions. TopView BottomView GroundingPin SignalInput TransmissionLinewith50ΩImpedanceCharacteristic 詠業科技股份有限公司 UnictronTechnologiesCorporation Website:www.unictron.com THISDRAWINGSANDSPECIFICATIONSARETHE PROPERTYOFUNICTRONTECHNOLOGIES CORPORATIONANDSHALLNOTBEREPRODUCED ORUSEDASTHEBASISFORTHEMANUFACTUREOR SALEOFAPPARATUSORDEVICESWITHOUT PERMISSION Preparedby:XeniaDesignedby:KenCheckedby:MikeApprovedby ： Herbert TITLE：3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChip Antenna(AA055A)EngineeringSpecification DOCUMENT H2U34W1H1Z0400 REV. NO.G PAGE3OF16 5-2.ElectricalSpecifications(EvaluationBoardDimensions:80x40mm 2 ) 5-2-1.ElectricalTable CharacteristicsSpecificationsUnit OutlineDimensions3.2x1.6x0.5mm GroundPlaneDimensions80x40mm WorkingFrequency2400~2500MHz VSWR(@centerfrequency)*2Max. CharacteristicImpedance50  PolarizationLinearPolarization PeakGain (@2442MHz) 2.5(typical)dBi Efficiency84(typical)% *Centerfrequencymeansthefrequencywiththelowestvalueinreturnlossofthechipantennaontheevaluationboard. 5-2-2.ReturnLoss&VSWR ReturnLoss(S 11 )VSWR(S 11 ) 詠業科技股份有限公司 UnictronTechnologiesCorporation Website:www.unictron.com THISDRAWINGSANDSPECIFICATIONSARETHE PROPERTYOFUNICTRONTECHNOLOGIES CORPORATIONANDSHALLNOTBEREPRODUCED ORUSEDASTHEBASISFORTHEMANUFACTUREOR SALEOFAPPARATUSORDEVICESWITHOUT PERMISSION Preparedby:XeniaDesignedby:KenCheckedby:MikeApprovedby ： Herbert TITLE：3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChip Antenna(AA055A)EngineeringSpecification DOCUMENT H2U34W1H1Z0400 REV. NO.G PAGE4OF16 6.OutlineDimensionsofAntenna&EvaluationBoard(unit:mm) 6-1.AntennaDimensions PINDefinitions PIN12 SolderingPAD SignalTuning/Ground 詠業科技股份有限公司 UnictronTechnologiesCorporation Website:www.unictron.com THISDRAWINGSANDSPECIFICATIONSARETHE PROPERTYOFUNICTRONTECHNOLOGIES CORPORATIONANDSHALLNOTBEREPRODUCED ORUSEDASTHEBASISFORTHEMANUFACTUREOR SALEOFAPPARATUSORDEVICESWITHOUT PERMISSION Preparedby:XeniaDesignedby:KenCheckedby:MikeApprovedby ： Herbert TITLE：3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChip Antenna(AA055A)EngineeringSpecification DOCUMENT H2U34W1H1Z0400 REV. NO.G PAGE5OF16 6-2.EvaluationBoardwithAntenna unit:mm 詠業科技股份有限公司 UnictronTechnologiesCorporation Website:www.unictron.com THISDRAWINGSANDSPECIFICATIONSARETHE PROPERTYOFUNICTRONTECHNOLOGIES CORPORATIONANDSHALLNOTBEREPRODUCED ORUSEDASTHEBASISFORTHEMANUFACTUREOR SALEOFAPPARATUSORDEVICESWITHOUT PERMISSION Preparedby:XeniaDesignedby:KenCheckedby:MikeApprovedby ： Herbert TITLE：3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChip Antenna(AA055A)EngineeringSpecification DOCUMENT H2U34W1H1Z0400 REV. NO.G PAGE6OF16 7.RadiationPattern(with80x40mm 2 EvaluationBoard) 7-1.3DGainPattern@2442MHz(unit:dBi) Z Z X Z Y 詠業科技股份有限公司 UnictronTechnologiesCorporation Website:www.unictron.com THISDRAWINGSANDSPECIFICATIONSARETHE PROPERTYOFUNICTRONTECHNOLOGIES CORPORATIONANDSHALLNOTBEREPRODUCED ORUSEDASTHEBASISFORTHEMANUFACTUREOR SALEOFAPPARATUSORDEVICESWITHOUT PERMISSION Preparedby:XeniaDesignedby:KenCheckedby:MikeApprovedby ： Herbert TITLE：3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChip Antenna(AA055A)EngineeringSpecification DOCUMENT H2U34W1H1Z0400 REV. NO.G PAGE7OF16 7-2.3DEfficiencyTable Frequency(MHz)2400241224172422242724322437244224472452245724622467247224842500 Efficiency(dB)-1.4-1.0-0.9-0.8-0.8-0.8-0.7-0.7-0.8-0.8-0.8-0.9-0.9-1.0-1.2-1.4 Efficiency(%)72.878.780.482.383.083.984.484.584.184.083.282.080.578.675.472.5 PeakGain(dBi)1.51.81.92.12.32.32.42.52.52.52.42.42.22.11.91.8 7-3.3DEfficiencyvs.Frequency 詠業科技股份有限公司 UnictronTechnologiesCorporation Website:www.unictron.com THISDRAWINGSANDSPECIFICATIONSARETHE PROPERTYOFUNICTRONTECHNOLOGIES CORPORATIONANDSHALLNOTBEREPRODUCED ORUSEDASTHEBASISFORTHEMANUFACTUREOR SALEOFAPPARATUSORDEVICESWITHOUT PERMISSION Preparedby:XeniaDesignedby:KenCheckedby:MikeApprovedby ： Herbert TITLE：3.2x1.6x0.5(mm)WiFi/BluetoothCeramicChip Antenna(AA055A)EngineeringSpecification DOCUMENT H2U34W1H1Z0400 REV. NO.G PAGE8OF16 8.FrequencytuningandMatchingcircuit 8-1.Chipantennatuningscenario： 8-2.Matchingcircuit ： Withthefollowingrecommendedvaluesofmatchingandtuningcomponents,the centerfrequencieswillbeabout2442MHzatourstandard80x40mm 2 evaluation board.However,thesearety…

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Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230419025E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 42 FCC Part 15C Test Report FCC ID: 2A7IW-JS270 Applicant: Guangzhou Feiruiteng Electronic Commerce Co. LTD Address: Room 416, No. 620, Xingnan Avenue, Nancun Town, Panyu District, Guangzhou, China Manufacturer: Guangzhou tehao teku Technology Co., Ltd Address: Room 408, No. 620, Xingnan Avenue, Nancun Town, Panyu District, Guangzhou, China EUT: Bluetooth earphone Trade Mark: 梵蒂尼/VANTEENIE Model Number: JS270, GT27, T75, GT280, A520, BT-7, T62, S08, Pro6, F9, X37 Date of Receipt: Apr. 10, 2023 Test Date: Apr. 10, 2023 - Apr. 20, 2023 Date of Report: Apr. 20, 2023 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Building C, Shuanghuan, No.8, Baoqing Road, Baolong Industrial Zone, Baolong Street, Longgang District, Shenzhen, Guangdong, China Applicable Standards: FCC PART 15 C 15.249 ANSI C63.10:2013 Test Result: Pass Report Number: DL-20230419025E Prepared (Test Engineer): Pxing Huang Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230419025E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 42 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 MEASUREMENT UNCERTAINTY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 DESCRIPTION OF TEST MODES 6 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 6 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 7 2.5 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 7 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 8 3 . EMC EMISSION TEST 9 3.1 CONDUCTED EMISSION MEASUREMENT 9 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 9 3.1.2 TEST PROCEDURE 9 3.1.3 DEVIATION FROM TEST STANDARD 9 3.1.4 TEST SETUP 10 3.1.5 EUT OPERATING CONDITIONS 10 3.1.6 TEST RESULTS 10 3.2 RADIATED EMISSION MEASUREMENT 13 3.2.1 RADIATED EMISSION LIMITS 13 3.2.2 TEST PROCEDURE 14 3.2.3 DEVIATION FROM TEST STANDARD 14 3.2.4 TEST SETUP 14 3.2.5 EUT OPERATING CONDITIONS 15 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 16 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 17 3.2.8 TEST RESULTS (1GHZ~25GHZ) 21 3.3 RADIATED BAND EMISSION MEASUREMENT 27 3.3.1 TEST REQUIREMENT: 27 3.3.2 TEST PROCEDURE 27 3.3.3 DEVIATION FROM TEST STANDARD 27 3.3.4 TEST SETUP 28 3.3.5 EUT OPERATING CONDITIONS 28 4 . BANDWIDTH TEST 35 4.1 APPLIED PROCEDURES / LIMIT 35 4.1.1 TEST PROCEDURE 35 4.1.2 DEVIATION FROM STANDARD 35 4.1.3 TEST SETUP 35 4.1.4 EUT OPERATION CONDITIONS 35 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230419025E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 42 Table of Contents Page 4.1.5 TEST RESULTS 36 5 . ANTENNA REQUIREMENT 39 5.1 STANDARD REQUIREMENT 39 5.2 EUT ANTENNA 39 6 . TEST SEUUP PHOTO 40 7 . EUT PHOTO 42 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230419025E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 42 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.205(a), 15.209(a) 15.249(a), 15.249(c) Fundamental &Radiated Spurious Emission Measurement PASS 15.249(d) Band Edge Emission PASS 15.215(c) 20dB Bandwidth PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report 1.1 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 Conducted Emission Test ±2.56dB 2 RF power,conducted ±0.42dB 3 Spurious emissions,conducted ±2.76dB 4 All emissions,radiated(<1G) ±3.65dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% 8 20dB Bandwidth ±0.2MHz Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230419025E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 42 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product Name: Bluetooth earphone Trademark 梵蒂尼/VANTEENIE Model No.: JS270 GT27, T75, GT280, A520, BT-7, T62, S08, Pro6, F9, X37 Model Difference All samples are the same except the model name and appearance color, so we prepare " JS270" for test only. Operation Frequency: 2402~2480MHz Channel numbers: 79 Channels Channel separation: 1M Modulation technology: GFSK, PI/4 DQPSK, 8DPSK Antenna Type: Chip antenna Antenna gain: 2.5dBi Power supply: DC 3.7V from battery DC 5V from Host Note: 1.For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. 2.The EUT’s all information provided by client. 3. Channel List Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) 00 2402 27 2429 54 2456 01 2403 28 2430 55 2457 02 2404 29 2431 56 2458 03 2405 30 2432 57 2459 04 2406 31 2433 58 2460 05 2407 32 2434 59 2461 06 2408 33 2435 60 2462 07 2409 34 2436 61 2463 08 2410 35 2437 62 2464 09 2411 36 2438 63 2465 10 2412 37 2439 64 2466 11 2413 38 2440 65 2467 12 2414 39 2441 66 2468 13 2415 40 2442 67 2469 14 2416 41 2443 68 2470 15 2417 42 2444 69 2471 16 2418 43 2445 70 2472 17 2419 44 2446 71 2473 18 2420 45 2447 72 2474 19 2421 46 2448 73 2475 20 2422 47 2449 74 2476 21 2423 48 2450 75 2477 22 2424 49 2451 76 2478 23 2425 50 2452 77 2479 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230419025E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 6 of 42 24 2426 51 2453 78 2480 25 2427 52 2454 26 2428 53 2455 2.2 DESCRIPTION OF TEST MODES Note: (1) Th…

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Radiated Measurement Photos Conducted Measurement Photos