2BBVI-CRI500CENTERPOINTE Earbuds

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: Centerpointe Research Institute Contact Name: yan xiaoya Address: 5801 NE Cornelius Pass Rd, Hillsboro, OR 97124 FRN: 0033951625 Telephone No: 503-672-7117 Fax No: 503-672-7117 Email: [email protected] Applicant: Company name: Centerpointe Research Institute Grantee code: 2BBVI FCC ID: 2BBVI-CRI500 Contact Name: yan xiaoya Address: 5801 NE Cornelius Pass Rd, Hillsboro, OR 97124 Telephone: 503-672-7117 Fax: 503-672-7117 E-mail: [email protected] [Centerpointe Research Institute] certifies that, as of the date of this filing of the application with the TCB, [Centerpointe Research Institute] is our designated US agent for service of process for the above referenced FCC ID. [Centerpointe Research Institute] 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. [Centerpointe Research Institute] 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: 2023/07/03 Applicant’s Name: yan xiaoya US Agent’s Name: yan xiaoya Title: Manager Title: Manager Signature Signature

C5266091_X24_Ed.2 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: Centerpointe Research Institute Grantee code: 2BBVI FCC ID: 2BBVI-CRI500 Contact Name: yan xiaoya Address: 5801 NE Cornelius Pass Rd, Hillsboro, OR 97124 Telephone: 503-672-7117 Fax: 503-672-7117 E-mail: [email protected] i. [Centerpointe Research Institute] (“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. [Centerpointe Research Institute] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [Centerpointe Research Institute] (“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 . Date: 2023/07/03 Applicant’s Name: yan xiaoya 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

Centerpointe Research Institute 1/1 Letter of Authorization Company: Centerpointe Research Institute Address: 5801 NE Cornelius Pass Rd, Hillsboro, OR 97124 Product Name: CENTERPOINTE Earbuds Model Number: CRI-500 FCC Identifier: 2BBVI-CRI500 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: yan xiaoya Date: 2023-07-03 Title: Manager Signature of applicant:

Centerpointe Research Institute 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-07-03 Subject: Request for Confidentiality FCC ID: 2BBVI-CRI500 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, Name: yan xiaoya Date: 2023-07-03 Title: Manager Signature of applicant:

Size:8*6mm M/N: CRI-500 FCC ID: 2BBVI-CRI500 IC: 30861-CRI500 Label location

ANT

FCC ID: 2BBVI-CRI500 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 EIRP is 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, For EDR Field strength (dBuV/m) EIRP (dBm) Max tune-up (mW) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 84.67 -10.49 0.089 2402 5 0.028 3.0 So a SAR test is not required

2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ Application: WLAN, 802.11b/g, Bluetooth, WLAN, etc... Features SMD, high reliability, ultra Impact, Omni-directional... Part number Information RANT3216F245C03 (A)(B)(C)(D)(E)(F) Electrical Specification The specification is defined on EVB. Dimension and Terminal Configuration No.Terminal Name 1Feeding/GNG 2GND/Feeding (A)Product TypeChip Antenna (B) Size Code 3.2x1.6mm( ± 0.2mm) (C) MaterialHigh K material (D) Frequency2.4 ~ 2.5GHz (E) Feeding modePIFA & Single Feeding (F) Antenna typeType=03 Working Frequency Range2400 ~2500 MHz Bandwidth120 MHz (Min.) Peak Gain 1.20dBi Impedance50 Ohm Return loss10 dB ( Min) PolarizationLinear Azimuth BeamwidthOmni-directional Operation Temperature(°C)-40 ~85°C Resistance to Soldering Heats 10sec. ( @ 280°C) TerminationNi / Au (Leadless) Dimension (mm) L 3.20±0.20 W 1.60±0.20 T 0.45±0.20 咏成國際科技有限公司電話: RAIN International Technology Co., Ltd.TEL: 2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ 1 Evaluation BoardReference 长条板 PCB 推荐 Dimension 圆板 Antenna Layout Reference Unit :mm Electrical Characteristics Return Loss & Radiation Return Loss Frequency(MHz) S11 (dB) 2400-10.50 2450-30.62 2500-11.47 2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ Radiation X Y Z 2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ Taping Specifications Reel and Taping Specification Reel Specification TYPESIZEABCD 32167”5K/Reel 9.0±0.5 60±213.5±0.5178±2 Tapping Specification PackagingTypeABWEFGHTψDP Paper Type3216 1.90±0.2 0 3.50±0.2 0 8.0±0.2 0 1.75±0.1 0 3.5±0.054.0±0.102.0±0.050.75±0.1 0 1.50±0.1 0 4.0±0.1 2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ Reliability Table Test ItemProcedure Requirements Ceramic Type Remark (Reference) Electrical Characterization Fulfill the electrical specification User Spec. Thermal Shock 1. Preconditioning: 50 ± 10°C/ 1 hr , then keep for 24 ± 1 hrs at room temp. 2. Initial measure: Spec: refer Initialspec. 3. Rapid change of temperature test: -30°Cto +85°C; 100 cycles; 15 minutes at Lower category temperature; 15 minutes at Upper category temperature. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 107 Temperature Cycling 1. Initial measure: Spec: refer Initialspec. 2. 100 Cycles (-30°Cto +85°C), Soak Mode=1 (2 Cycle/hours). 3. Measurement at 24 ± 2Hours after testcondition. No Visible Damage. Fulfill the electrical specification. JESD22 JA104 High Temperature Exposure 1. Initial measure: Spec: refer Initialspec. 2. Unpowered; 500hours @ T=+85°C. 3. Measurement at 24 ± 2 hours aftertest. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Low Temperature Storage 1. Initial measure: Spec: refer Initialspec. 2. Unpowered: 500hours @ T=-30°C. 3. Measurement at 24 ± 2 hours aftertest. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Solderability (SMD Bottom Side) Dipping method: a. Temperature: 235 ±5°C b. Dipping time: 3 ±0.5s The solder should cover over 95% of the critical area of bottom side. IEC 60384-21/22 4.10 Soldering Heat Resistance (RSH) Preheating temperature: 150 ± 10°C. Preheating time: 1~2 min. Solder temperature: 260 ± 5°C. Dipping time: 5 ± 0.5s No Visible Damage.IEC 60384-21/22 4.10 Vibration5g's for 20 min., 12 cycles each of 3 orientations Note: Use 8"X5" PCB .031" thick 7 secure points on, one long side and 2 secure points at corners of opposite sides. Parts mounted within 2" from any secure point. Test from 10-2000 Hz. No Visible Damage.MIL-STD-202 Method 204 Mechanical Shock Three shocks in each direction shall be applied along the three mutually perpendicular axes of the test specimen (18 shocks) Peak value: 1,500g’s Duration: 0.5ms Velocity change: 15.4 ft/s Waveform: Half-sine No Visible Damage.MIL-STD-202 Method 213 Humidity Bias 1. Humidity: 85% R.H., Temperature:85 ± 2 °C. 2. Time: 500 ± 24hours. 3. Measurement at 24 ± 2hrs after testcondition. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 Method 106 2.4GHz 3216 Chip Antenna: RANT3216F245C01 _ Board Flex (SMD) 1. Mounting method: IR-Reflow. PCB Size (L:100 × W:40 × T:1.6mm) 2. Apply the load in direction of the arrow until bending reaches 2 mm. No Visible Damage.AEC-Q200 005 AdhesionForce of 1.8Kg for 60 seconds.No Visible Damage Magnification of 20X or greater may be employed for inspection of the mechanical integrity of the device body terminals and body/terminal junction. AEC-Q200 006 Physical Dimension Any applicable method using x10 magnification, micrometers, calipers, gauges, contour projectors, or other measuring equipment, capable of determining the actual specimen dimensions. In accordance with specification. JESD22 JB100 Revision History RevisionDateContent 12019/03/01New Datasheet 22020/02/22Add 2D radiation characteristic

Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230620050E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 41 FCC Part 15C Test Report FCC ID: 2BBVI-CRI500 Applicant: Centerpointe Research Institute Address: 5801 NE Cornelius Pass Rd, Hillsboro, OR 97124 Manufacturer: Dongguan Ouge Electronic Technology Co., Ltd Address: Building 2, No.1 Dongshan Yongchang Road, Qishi Town, Dongguan City, Guangdong Province, China EUT: CENTERPOINTE Earbuds Trade Mark: N/A Model Number: CRI-500 Date of Receipt: Jun. 14, 2023 Test Date: Jun. 14, 2023 - Jun. 20, 2023 Date of Report: Jun. 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-20230620050E 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-20230620050E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 41 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 7 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 7 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 8 2.5 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 8 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 9 3 . EMC EMISSION TEST 10 3.1 CONDUCTED EMISSION MEASUREMENT 10 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 10 3.1.2 TEST PROCEDURE 10 3.1.3 DEVIATION FROM TEST STANDARD 10 3.1.4 TEST SETUP 11 3.1.5 EUT OPERATING CONDITIONS 11 3.1.6 TEST RESULTS 11 3.2 RADIATED EMISSION MEASUREMENT 14 3.2.1 RADIATED EMISSION LIMITS 14 3.2.2 TEST PROCEDURE 15 3.2.3 DEVIATION FROM TEST STANDARD 15 3.2.4 TEST SETUP 15 3.2.5 EUT OPERATING CONDITIONS 16 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 17 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 18 3.2.8 TEST RESULTS (1GHZ~25GHZ) 20 3.3 RADIATED BAND EMISSION MEASUREMENT 23 3.3.1 TEST REQUIREMENT: 23 3.3.2 TEST PROCEDURE 23 3.3.3 DEVIATION FROM TEST STANDARD 23 3.3.4 TEST SETUP 24 3.3.5 EUT OPERATING CONDITIONS 24 4 . BANDWIDTH TEST 28 4.1 APPLIED PROCEDURES / LIMIT 28 4.1.1 TEST PROCEDURE 28 4.1.2 DEVIATION FROM STANDARD 28 4.1.3 TEST SETUP 28 4.1.4 EUT OPERATION CONDITIONS 28 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230620050E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 41 Table of Contents Page 4.1.5 TEST RESULTS 29 5 . ANTENNA REQUIREMENT 32 5.1 STANDARD REQUIREMENT 32 5.2 EUT ANTENNA 32 6 . TEST SEUUP PHOTO 33 7 . EUT PHOTO 35 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230620050E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 41 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-20230620050E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 41 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product Name: CENTERPOINTE Earbuds Trademark N/A Model No.: CRI-500 Model Difference N/A Operation Frequency: 2402~2480MHz Channel numbers: 79 Channels Channel separation: 1M Modulation technology: GFSK, PI/4 DQPSK, 8DPSK Antenna Type: Chip antenna Antenna gain: 1.20dBi Power supply: DC 3.7V from battery DC 5V from charger 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. Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230620050E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 6 of 41 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 24 2426 51 2453 78 2480 25 2427 52 2454 26 2428 53 2455 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20230620050E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 7 of 41 2.2 DESCRIPTION OF TEST MODES Note: (1) The measurements are performed at the highest, middle, lowest available channels. 2.3 BLOC…

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Radiated Measurement Photos Conducted Measurement Photos