2AXYP-OEB-E80DNeckband Wireless Earphone

ORAIMO TECHNOLOGY LIMITED Address:FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19- 25 SHAN MEI STREET FOTAN NT HONGKONG Tel.: +86-0755-61803856 Email: [email protected] QA-FR-170-B Attestation Letter Date: 2022-12-20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: The RF chip JL7018F, installed in our product Neckband Wireless Earphone, model: OEB- E80D, FCC ID: 2AXYP-OEB-E80D, this chip supports BDR(GFSK), EDR(π/4-DQPSK, 8DPSK), BLE1M/2M function, but for marketing purpose, this chip only supports BDR(GFSK), EDR(π/4-DQPSK), BLE 1M/2M. The EDR(8DPSK) was disabled to use by manufacture in the software, the end user has no capability to activate it. Sincerely Yours, Signature Greeny Xian Manager

ORAIMO TECHNOLOGY LIMITED Address:FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19- 25 SHAN MEI STREET FOTAN NT HONGKONG Tel.: +86-0755-61803856 Email: [email protected] CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2023-02-17 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2AXYP-OEB-E80D ORAIMO TECHNOLOGY LIMITED 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, Signature Greeny Xian Manager ORAIMO TECHNOLOGY LIMITED Address: FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19- 25 SHAN MEI STREET FOTAN NT HONGKONG

ORAIMO TECHNOLOGY LIMITED Address:FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19- 25 SHAN MEI STREET FOTAN NT HONGKONG Tel.: +86-0755-61803856 Email: [email protected] CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2023-02-17 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2AXYP-OEB-E80D ORAIMO TECHNOLOGY LIMITED 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, Signature Greeny Xian Manager ORAIMO TECHNOLOGY LIMITED Address: FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19- 25 SHAN MEI STREET FOTAN NT HONGKONG

U.S. AGENT LETTER OF ATTESTATION Date: 2023-02-17 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2AXYP-OEB-E80D ORAIMO TECHNOLOGY LIMITED certifies that, as of the date of the filing of the application, Iconsigh Inc. is our designated U.S. agent for service of process for the above referenced FCC ID . ORAIMO TECHNOLOGY LIMITED 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. Iconsigh Inc. accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: Iconsigh Inc. Address: 2310 Homestead Road, Suite C1, Los Altos, CA, 94024, USA FRN: 0033398652 Tel.: +1 (408) 320-9867 Email: [email protected] Signed by (printed name): Benjamin Kaur Signature: Applicant: ORAIMO TECHNOLOGY LIMITED Address: FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19- 25 SHAN MEI STREET FOTAN NT HONGKONG FRN: 0030126577 Tel: 86-755-61803856 Email: [email protected] Signed by (printed name): Greeny Xian Signature:

ORAIMO TECHNOLOGY LIMITED Address:FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19- 25 SHAN MEI STREET FOTAN NT HONGKONG Tel.: +86-0755-61803856 Email: [email protected] QA-FR-170-B FCC Authorization Date: 2022-12-20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, ORAIMO TECHNOLOGY LIMITED hereby authorizes Shenzhen Accurate Technology Co., Ltd. to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Shenzhen Accurate Technology Co., Ltd. on our behalf shall have the same effect as our own action. We, the undersigned, hereby 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. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature Greeny Xian Manager

ORAIMO TECHNOLOGY LIMITED Address:FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19- 25 SHAN MEI STREET FOTAN NT HONGKONG Tel.: +86-0755-61803856 Email: [email protected] FCC Confidential Authorization Date: 2022-12-20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AXYP-OEB-E80D In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, ORAIMO TECHNOLOGY LIMITED hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description As well as short-term confidential treatment of information accompanying this application for a period of 180 days after grant is issued as outlined below:  Internal Photos  User’s Manual  External Photos  Test Set-up Photos The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature Greeny Xian Manager

Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2AXYP-OEB-E80D External Photos Page 1 of 4 External Photos Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2AXYP-OEB-E80D External Photos Page 2 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2AXYP-OEB-E80D External Photos Page 3 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2AXYP-OEB-E80D External Photos Page 4 of 4

Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2AXYP-OEB-E80D Internal Photos Page 1 of 4 Internal photos Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2AXYP-OEB-E80D Internal Photos Page 2 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2AXYP-OEB-E80D Internal Photos Page 3 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2AXYP-OEB-E80D Internal Photos Page 4 of 4

Shenzhen Accurate Technology Co., Ltd. Report No.: RA221213-61137E-RF-00A Version 11: 2021-11-09 Page 11 of 45 FCC-BT FCC§15.247 (i), §1.1307 (b) (3) &§2.1093 – RF EXPOSURE Applicable Standard According to FCC §2.1093 and §1.1307(b) (3), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB 447498 D04 Interim General RF Exposure Guidance SAR-Based Exemption: SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum timeaveraged power or maximum time-averaged ERP, whichever is greater. Per § 1.1307(b)(3)(i)(B), for single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold P th (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). P th is given by: Shenzhen Accurate Technology Co., Ltd. Report No.: RA221213-61137E-RF-00A Version 11: 2021-11-09 Page 12 of 45 FCC-BT For worst case: Exemption limit: For f=2.48GHz, d=0.5cm, the P th =2.72mW The higher of the available maximum time-averaged power or effective radiated power (ERP): The antenna gain is 3.31dBi (1.16dBd), 0dBd=2.15dBi The maximum tune-up conducted power is 1.0dBm The maximum tune-up ERP = 1.16 +1.0 dBm = 2.16dBm (1.64mW), which less than 2.72 mW@2480MHz exemption limit So the stand-alone SAR evaluation can be exempted.

Shannon Semi Categories: general confidential Specifications for Chip Antenna Page 1 of 8 [New Released, Revised] SPEC No.: PH018-12 Shenzhen Shannon Semiconductor Co., Ltd. Customer Product Name Chip Antenna Shannon Part Number SNCA-2480-S2TF Customer Part Number Approved By Checked By Issued By 【For Customer approval Only】 Date: Qualification Status: Full Restricted Rejected Approved By Verified By Re-checked By Checked By Comments: 【 This SPEC is total 9 pages including specifications and appendix. 】 【 ROHS Compliant Parts 】 - [email protected] SPECIFICATIONS Shannon Semi Categories: general confidential Specifications for Chip Antenna Page 2 of 8 【Version change history】 Rev. Effective Date Changed Contents Change reasons Approved By 01 8.15,2018 New Release / Qiang Zhang Shannon Semi Categories: general confidential Specifications for Chip Antenna Page 3 of 8 1. Scope This specification applies to SNCA-2480-S2TF of Multi-layer Chip Antenna. 2. Product Description and Identification (Part Number) 1) Description :Multi-layer Chip Antenna 2) Product Identification (Part Number) SNCA 2480 S2 T F ① ② ③ ④⑤ 3. Electrical Characteristics Part Number Band Width Peak Gain Average Gain VSWR Impedance Power Capacity MHz 3.31 dBi @( XZ-total) 3.07 dBi @( XZ-total) In BW Ω W SNCA-2480-S2TF ≥100 < 2 50 2 W max 1) Operating and storage temperature range (individual chip without packing): -40°C ~ +85°C. 2) Storage temperature range (packaging conditions): -10°C ~ +40°C and RH 70% (Max.). 3) Test equipment: Network Analyzer: E5071B. 4) Measuring diagram. 4. Shape and Dimensions Dimensions and recommended PCB pattern for reflow soldering: A B D C (1) (2) Unit: mm Item Series A B C D. SNCA-2480-S2TF 3.2±0.2 1.6±0.2 0.5±0.1 0.5±0.2 ① Type SNCA Shannon Semi ② Center Frequency 2480M 2480.0MHz ③ Series Code S2 ⑤Hazardous Substance Free Products ④Packing T Tape Carrier Package F Shannon Semi Categories: general confidential Specifications for Chip Antenna Page 4 of 8 Demo-board: Top view Detail view Bottom view 1) Terminal Configuration: 5. Test and Measurement Procedures 5.1 Test Conditions Unless otherwise specified, the standard atmospheric conditions for measurement/test as: a. Ambient Temperature: 20±15°C b. Relative Humidity: 65±20% c. Air Pressure: 86 Pa to 106KPa If any doubt on the results, measurements/tests should be made within the following limits: a. Ambient Temperature: 20±2°C b. Relative Humidity: 65±5% c. Air Pressure: 86KPa to 106KPa 5.2 Visual Examination a. Inspection Equipment: 20 X magnifier 5.3 Reliability Test No. Terminal Name No. Terminal Name (1) Feeding Point (2) Soldering terminal (2) (1) 50Ω trace GND via Unit: mm A B D C (1) (2) Shannon Semi Categories: general confidential Specifications for Chip Antenna Page 5 of 8 Items Requirements Te s t M e t h o d s a n d R e m a r k s 5.3.1 Terminal Strength No visible mechanical damage. ① Solder the Antenna to the testing jig (glass epoxy board shown as the following figure) using leadfree solder. Then apply a force in the direction of the arrow. ② 10N force for 3216 series. ③ Keep time: 10±1sec. 5.3.2 Resistance to Flexure No visible mechanical damage. ① Solder the chip to the test jig (glass epoxy board) using a leadfree solder. Then apply a force in the direction shown as the following figure. Solder the chip to the test jig (glass epoxy board) using leadfree solder. Then apply a force in the direction. ② Flexure: 2mm ③ Pressurizing Speed: 0.5mm/sec ④ Keep time: ≥30 sec 5.3.3 Dropping No visible mechanical damage. SNCA series: Drop the chip 5 times on a wood floor from a height of 50 cm. 5.3.4 Solderability ① No visible mechanical damage. ② Wetting shall be exceeded 75% coverage. ① Solder temperature: 240±2°C ② Duration: 3sec ③ Solder: Sn/3.0Ag/0.5Cu ④ Flux: 25% Resin and 75% ethanol in weight 5.3.5 Resistance to Soldering Heat No visible mechanical damage. ① Solder temperature: 260±5°C ② Duration: 5 sec ③ Solder: Sn/3.0Ag/0.5Cu ④ Flux: 25% Resin and 75% ethanol in weight ⑤ The chip shall be stabilized at normal condition for 1~2 hours before measuring. 5.3.6 Thermal Shock ① No visible mechanical damage. ② Satisfy electrical Characteristic. ① Te m p e r a t u r e and time: -40°C for 30±3 min→85°C for 30±3min ② Transforming interval: Max. 20 sec. ③ Tested cycle: 10 cycles ④ The chip shall be stabilized at normal condition for 1~2 hours before measuring. 20 45 45 R10 Flexure: 2 10 Unit: mm 10N/10±1s Speed: 1.0mm/s Glass Epoxy Board Chip Mounting Pad -40°C Ambient Temperature 85°C 30 min. 30 min. 30 min. 20sec. (max.) Shannon Semi Categories: general confidential Specifications for Chip Antenna Page 6 of 8 5.3.7 Damp Heat (Steady States) ① No visible mechanical damage. ② Satisfy electrical Characteristic. ① Te m p e r a t u r e : 60±2°C ② Humidity: 90% to 95% RH ③ Duration: 96 +24 hours ④ The chip shall be stabilized at normal condition for 1~2 hours before measuring. 5.3.8 Resistance to High temperature ① No visible mechanical damage. ② Satisfy electrical Characteristic. ① Te m p e r a t u r e : 85±2°C ② Duration: 96 +24 hours ③ The chip shall be stabilized at normal condition for 1~2 hours before measuring. 6. Packaging and Storage 6.1 Packaging There is one type of packaging for the Multi-layer Chip Antennas. Please specify the packing code when ordering. 6.1.1 Tape Carrier Packaging: Packaging code: T a. Tape carrier packaging are specified in attached figure Fig. 6.1-1~3 b. Tape carrier packaging quantity please see the following table: (1) Taping Drawings (Unit: mm) (2) Taping Dimensions (Unit: mm) Type 3216[1206] Ta p e Paper Ta p e Quantity 3K Type Chip Thickness A B P T max SNCA-2480-S2TF 0.5±0.1 1.8±0.1 3.5±0.1 4.0±0.10 0.75 Remark: The sprocket holes are to the right as the tape is pulled toward the user. Fig. 7.1-6 Fig. 6.1-1 Sprocket Hole Chip Cavity Bottom Tape Paper Tape To p Ta p e Paper Tape 1.75±0.1 4.0±0.1 A B P 3.5 ± 0.05 8.0 ± 0.3 Chip Cavity Sprocket Hole Φ1.5 (+0.1,0) Direction of Feed T 2.0±0.05 Shannon Se…

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Note: This report may contain data that are not covered by the A2LA accr ★ editation and are marked with an asterisk “ ”. Shenzhen Accurate Technology Co., Ltd. is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 11: 2021-11-09 Page 1 of 45 FCC-BT TEST REPORT Applicant Name : ORAIMO TECHNOLOGY LIMITED Address : FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19-25 SHAN MEI STREET FOTAN NT Hong Kong Report Number : RA221213-61137E-RF-00A FCC ID: 2AXYP-OEB-E80D Test Standard (s) FCC PART 15.247 Sample Description Product Type: Neckband Wireless Earphone Model No.: OEB-E80D Multiple Model(s) No.: N/A Trade Mark: oraimo Date Received: 2022/12/13 Report Date: 2023/02/07 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Andy Yu Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: RA221213-61137E-RF-00A Version 11: 2021-11-09 Page 2 of 45 FCC-BT REVISION HISTORY Revision Number Report Number Description of Revision Date of Revision 0 RA221213-61137E-RF-00A Original Report 2023/02/07 Shenzhen Accurate Technology Co., Ltd. Report No.: RA221213-61137E-RF-00A Version 11: 2021-11-09 Page 3 of 45 FCC-BT TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 5 OBJECTIVE ................................................................................................................................................................... 5 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 6 TEST FACILITY ............................................................................................................................................................. 6 SYSTEM TEST CONFIGURATION .......................................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 7 EUT EXERCISE SOFTWARE .......................................................................................................................................... 7 SPECIAL ACCESSORIES ................................................................................................................................................. 7 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 7 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 7 EXTERNAL I/O CABLE .................................................................................................................................................. 7 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 8 SUMMARY OF TEST RESULTS ............................................................................................................................... 9 TEST EQUIPMENT LIST ......................................................................................................................................... 10 FCC§15.247 (I), §1.1307 (B) (3) &§2.1093 – RF EXPOSURE ..................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 13 FCC §15.205, §15.209 & §15.247(D) – RADIATED EMISSIONS .......................................................................... 14 APPLICABLE STANDARD ............................................................................................................................................ 14 EUT SETUP ................................................................................................................................................................ 14 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 15 TEST PROCEDURE .................…

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Shenzhen Accurate Technology Co., Ltd. Project No.: RA221213-61137E-RF Test Photos Page 1 of 1 Photo of Radiated Emission Measurement (Below 1G) Photo of Radiated Emission Measurement (Above 1G)