2A9NQ-Y913TWS Bluetooth headset

(Shenzhen Lanxingxin Technology Co., Ltd.) (August 2, 2023) 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: 2A9NQ-Y913) [Shenzhen Lanxingxin Technology 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. Sincerely, (Applicant signature) (Applicant printed name) Jianying Li (Shenzhen Lanxingxin Technology Co., Ltd.) (August 2, 2023) 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: 2A9NQ-Y913) [Shenzhen Lanxingxin 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 as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Jianying Li

Attestation Statements (August 2, 2023) 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: 2A9NQ-Y913) (Shenzhen Lanxingxin Technology Co., Ltd.), the undersigned, hereby authorize (APEX US SPECIALISTS LIMITED) to act as our designated U.S. agent for service of process,(Shenzhen Lanxingxin Technology 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 the equipment. (APEX US SPECIALISTS 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 Lanxingxin Technology Co., Ltd. Contact Name: Jianying Li Address: 301, No. 8, East Zone, Shengjingyuan Industrial Park, Fuqian Road, Fumin Community, Fucheng Street, Longhua District, Shenzhen Telephone No: 13417418425 Email: [email protected] U.S. Agent Information: Company Name: APEX US SPECIALISTS LIMITED Address:1226North King St.#460 Wilmington DE 19801 Contact Name: Wells Yan Telephone No: 001（302）230-1046 Email:[email protected] FRN: 0033764416 Applicant Sign ature:Age nt Sign ature: Applicant printed name: Jianying LiAge nt printed name: Wells Yan

Shenzhen Lanxingxin Technology Co., Ltd. Model Difference Data：August 2, 2023 Product description: TWS Bluetooth headset Model name: Y913, M7, M30PRO, M88PLUS, M88PRO, M90MAX, M90PRO, M96, M98, M99, M68, M85, M86, M68MAX, M100, K70, AIR80, F9-36, F9-5C, F9-32, F9-34, X12, D101, D20, S518, S230, S20, H18, SKY-5, SKY-10, CY02, M32B, E30, R08, R10, R12, R13, R15, R17, R19, R20, M56, PRO50, Y60S, X30, F60, F11, D31, D32, D35, D51, D202, CD02, CD03, M47, G6, J6, Y857, Y113S, JR01, JR02, JR03, TM10, TM20, TM30, TM40, TM50, M17PRO, X10, X10PRO, X11, X30, X50, X80, F07, F08, Q25 PRO, PRO30, PRO50, Air12, Air2, Air3, Air4, Air pro, Air Pro2, Air pro3, inpods13, Y-01, R18, S5, PRO70, D51, TG10, M17, M17 PRO, inpods12, i12, DX-01, Q92 Trade Name: CIRCE FCC ID: 2A9NQ-Y913 All the model are the same circuit and RF module, except model names . Regards Sincerely Client’s signature : Client’s name / title : Jianying Li（Manager） Contact information / address：301, No. 8, East Zone, Shengjingyuan Industrial Park, Fuqian Road, Fumin Community, Fucheng Street, Longhua District, Shenzhen

Shenzhen Lanxingxin Technology Co., Ltd. (August 2, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (TWS Bluetooth headset / Y913, M7, M30PRO, M88PLUS, M88PRO, M90MAX, M90PRO, M96, M98, M99, M68, M85, M86, M68MAX, M100, K70, AIR80, F9-36, F9-5C, F9-32, F9-34, X12, D101, D20, S518, S230, S20, H18, SKY-5, SKY-10, CY02, M32B, E30, R08, R10, R12, R13, R15, R17, R19, R20, M56, PRO50, Y60S, X30, F60, F11, D31, D32, D35, D51, D202, CD02, CD03, M47, G6, J6, Y857, Y113S, JR01, JR02, JR03, TM10, TM20, TM30, TM40, TM50, M17PRO, X10, X10PRO, X11, X30, X50, X80, F07, F08, Q25 PRO, PRO30, PRO50, Air12, Air2, Air3, Air4, Air pro, Air Pro2, Air pro3, inpods13, Y-01, R18, S5, PRO70, D51, TG10, M17, M17 PRO, inpods12, i12, DX-01, Q92 / FCC ID: 2A9NQ-Y913 ) 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: Jianying Li Title: Manager

Shenzhen Lanxingxin Technology Co., Ltd. (August 2, 2023) 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: Jianying Li Title: Manager

External Photos

FCC ID LABEL: Label Location: FCC ID: 2A9NQ-Y913 Model No.: Y913

Internal Photos L ANT R ANT

Shenzhen CTB Testing Co., Ltd. FCC ID: 2A9NQ-Y913 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR 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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. EDR: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 -0.61 0.87 0±1 1.00 1.26 <5 0.39023 3.00 YES 2.441 -1.852 0.65 -1±1 0.00 1.00 <5 0.31247 3.00 YES 2.480 -2.95 0.51 -2±1 -1.00 0.79 <5 0.25018 3.00 YES 2.402 0.112 1.03 0±1 1.00 1.26 <5 0.39023 3.00 YES 2.441 -1.2 0.76 -1±1 0.00 1.00 <5 0.31247 3.00 YES 2.480 -2.176 0.61 -2±1 -1.00 0.79 <5 0.25018 3.00 YES GFSK π /4DQPSK Conclusion: For the max result : 0.39023≤ FCC Limit 3.0 for 1g SAR.

2.4GHz 2012 Chip Antenna: RANT2012F245X5 Dimension (mm) L 2.05+-0.15 W 1.20+-0.15 T 0.45+-0.10 No. Terminal Name 1 Feeding/GNG 2 GND Application: WLAN, 802.11b/g, Bluetooth, WLAN, etc... Features SMD, high reliability, ultra Impact, Omni-directional... Part number Information RANT 2012 F 245 C 02 (A) (B) (C) (D) (E) (F) (A)Product Type Chip Antenna (B) Size Code 2.0x1.2mm(+-0.2mm) (C) Material High K material (D) Frequency 2.4 ~ 2.5GHz (E) Feeding mode PIFA & Single Feeding (F) Antenna type Type=02 Electrical Specification Working Frequency Range 2400 ~2484 MHz Bandwidth 84 (Min.) Peak Gain 1.7 dBi (Typ.) Impedance 50 Ohm Return loss 10 dB ( Min) Polarization Linear Azimuth Beamwidth Omni-directional Operation Temperature(°C) -40 ~85°C Resistance to Soldering Heats 10sec. ( @ 280°C) Termination Ni / Au (Leadless) The specification is defined on EVB. Dimension and Terminal Configuration 咏成國際科技有限公司 電話: 13530576606 深圳市宝安区固戍兴裕路同安智创园F栋611 TF TF 2.4GHz 2012 Chip Antenna: RANT2012F245X5 Evaluation Board Reference PCB Dimension Antenna Layout Reference Unit :mm Electrical Characteristics Return Loss Return Loss & Radiation 1 Frequency(MHz) S11 (dB) 2400 -10.77 2450 -24.81 2484 -10.243 Radiation Z Y X 2400MHz 2450MHz 2500MHz Efficiency 70.56% 75.25% 71.01% 2.4GHz 2012 Chip Antenna: RANT2012F245X5 Taping Specifications Reel and Taping Specification Reel Specification TYPE SIZE A B C D 2012 7” 5K/Reel 9.0±0.5 60±2 13.5±0.5 178±2 Tapping Specification Packaging Type A B W E F G H T D P Paper Type 2012 1.50±0.20 2.30±0.20 8.0±0.20 1.75±0.10 3.5±0.05 4.0±0.10 2.0±0.05 0.75±0.10 1.57±0.10 4.0±0.1 2.4GHz 2012 Chip Antenna: RANT2012F245X5 Reliability Table Test Item Procedure 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 Initial spec. 3. Rapid change of temperature test: -30°C to +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 Initial spec. 2. 100 Cycles (-30°C to +85°C), Soak Mode=1 (2 Cycle/hours). 3. Measurement at 24 ± 2Hours after test condition. No Visible Damage. Fulfill the electrical specification. JESD22 JA104 High Temperature Exposure 1. Initial measure: Spec: refer Initial spec. 2. Unpowered; 500hours @ T=+85°C. 3. Measurement at 24 ± 2 hours after test. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Low Temperature Storage 1. Initial measure: Spec: refer Initial spec. 2. Unpowered: 500hours @ T= -30°C. 3. Measurement at 24 ± 2 hours after test. 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 Vibration 5g'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 ± 24 hours. 3. Measurement at 24 ± 2hrs after testcondition. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 Method 106 2.4GHz 2012 Chip Antenna: RANT2012F245X5 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 Adhesion Force 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 Revision Date Content 1 2020/10/15 New Datasheet

Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB230721024RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 53 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: TWS Bluetooth headset FCC ID: 2A9NQ-Y913 Trademark: CIRCE Model Number: Y913, M7, M30PRO, M88PLUS, M88PRO, M90MAX, M90PRO, M96, M98, M99, M68, M85, M86, M68MAX, M100, K70, AIR80, F9-36, F9-5C, F9-32, F9-34, X12, D101, D20, S518, S230, S20, H18, SKY-5, SKY-10, CY02, M32B, E30, R08, R10, R12, R13, R15, R17, R19, R20, M56, PRO50, Y60S, X30, F60, F11, D31, D32, D35, D51, D202, CD02, CD03, M47, G6, J6, Y857, Y113S, JR01, JR02, JR03, TM10, TM20, TM30, TM40, TM50, M17PRO, X10, X10PRO, X11, X30, X50, X80, F07, F08, Q25 PRO, PRO30, PRO50, Air12, Air2, Air3, Air4, Air pro, Air Pro2, Air pro3, inpods13, Y-01, R18, S5, PRO70, D51, TG10, M17, M17 PRO, inpods12, i12, DX-01, Q92 Prepared For: Shenzhen Lanxingxin Technology Co., Ltd. Address: 301, No. 8, East Zone, Shengjingyuan Industrial Park, Fuqian Road, Fumin Community, Fucheng Street, Longhua District, Shenzhen Manufacturer: Shenzhen Lanxingxin Technology Co., Ltd. Address: 301, No. 8, East Zone, Shengjingyuan Industrial Park, Fuqian Road, Fumin Community, Fucheng Street, Longhua District, Shenzhen 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: Jul. 13, 2023 Sample tested Date: Jul. 13, 2023 to Jul. 24, 2023 Issue Date: Jul. 24, 2023 Report No.: CTB230721024RFX Test Standards FCC Part15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB230721024RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 53 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................... 4 2. TEST SUMMARY ................................................................... 5 3. MEASUREMENT UNCERTAINTY ..................................................... 6 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 7 4.1 Product Information .................................................................... 7 4.2 Test Setup Configuration ............................................................... 7 4.3 Support Equipment .................................................................... 7 4.4 Channel List .......................................................................... 8 4.5 Test Mode ............................................................................ 8 4.6 Test Environment ...................................................................... 8 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................... 9 5.1 Test Facility ........................................................................... 9 5.2 Test Instrument Used .................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION ............................................ 11 6.1 Block Diagram Of Test Setup .......................................................... 11 6.2 Limit ................................................................................ 11 6.3 Test procedure ....................................................................... 11 6.4 Test Result .......................................................................... 13 7. RADIATED SPURIOUS EMISSION ................................................... 15 7.1 Block Diagram Of Test Setup .......................................................... 15 7.2 Limit ................................................................................ 15 7.3 Test procedure ....................................................................... 16 7.4 Test Result .......................................................................... 17 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 26 8.1 Block Diagram Of Test Setup .......................................................... 26 8.2 Limit ................................................................................ 26 8.3 Test procedure ....................................................................... 26 8.4 Test Result .......................................................................... 27 9. COUDUCTED PEAK OUTPUT POWER ............................................... 32 9.1 Block Diagram Of Test Setup .......................................................... 32 9.2 Limit ................................................................................ 32 9.3 Test procedure ....................................................................... 32 9.4 Test Result .......................................................................... 33 10. 20DB OCCUPIED BANDWIDTH...................................................... 36 10.1 Block Diagram Of Test Setup ......................................................... 36 10.2 Limit ............................................................................... 36 10.3 Test procedure ...................................................................... 36 10.4 Test Result .........................................................…

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Radiated Emission Below 1G Above 1G Conducted emissions