2A378-HEAR2Bone Conduction Bluetooth Headphones

Dongguan Pure Audio Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: September 4, 2024 FCC ID: 2A378-HEAR2 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Dongguan Pure Audio Technology Co., Ltd. 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. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing Dongguan Pure Audio Technology Co., Ltd. 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. Applicant: Dongguan Pure Audio Technology Co., Ltd. Address: Room 814, No.183 Chonghuan Middle Road, Shijie Town, Dongguan China Contact Person: Chunchun He Tel.: +86-13926800191 Email: [email protected] Sincerely, Signature:

Dongguan Pure Audio Technology Co., Ltd. U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: September 4, 2024 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2A378-HEAR2 Dongguan Pure Audio Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, CLF Import and Export Limited (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. CLF Import and Export Limited ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: CLF Import and Export Limited FRN: 0033489683 Address: 1312 17th Street #692, Denver, CO 80202, United States Signature: Contact Person: David Chen Tel: +1 949 254 2565 Email: [email protected] Applicant Company Name: Dongguan Pure Audio Technology Co., Ltd. FRN: 0031824055 Address: Room 814, No.183 Chonghuan Middle Road, Shijie Town, Dongguan China Signature: Contact Person: Chunchun He Tel: +86-13926800191 Email: [email protected]

Dongguan Pure Audio Technology Co., Ltd. Date: September 4, 2024 Product Model Number: Hear2, UP-6K11 FCC ID: 2A378-HEAR2 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: • Testing • Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Chunchun He Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: +86-13926800191 On behalf of: Dongguan Pure Audio Technology Co., Ltd.

Dongguan Pure Audio Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: September 4, 2024 Subject; Request for Confidentiality FCC ID: 2A378-HEAR2 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Chunchun He Title: Manager

Approval sheet Page 1 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 RFECA Series – RoHS Compliance CERAMIC ANTENNA Halogens Free Product 2.4 GHz ISM Band RF Application P/N: RFECA3216060A1T *Contents in this sheet are subject to change without prior notice. 地址：臺北市信義區松智路1號24樓 24th Floor, 1 Songzhi Road, Xinyi District, Taipei City Approval sheet Page 2 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 FEATURES 1. Surface Mounted Devices with a small dimension of 3.2 X 1.6 X 0.6 mm 3 meet future miniaturization trend. 2. LTCC process. 3. High stability in Temperature / Humidity Cha nge. 4. Superb performance to place on the middle of PCB edge and excellent peak/ average gain observed by field test applic ation. APPLICATIONS 1. ISM Band 2.4GHz applicati ons. 2. Bluetooth.. CONSTRUCTION DIMENSIONS Figure Symbol Dimension (mm) L 3.10 ± 0.20 W 1.60 ± 0.20 T 0.60 ± 0.10 A 0.25 ± 0.20 PINConnection 1Feeding 2 Soldering terminal Approval sheet Page 3 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 SOLDER LAND PATTERN DESIGN Type-1: Empty Space 8.0mm x 3.0 mm Figure (Empty Space 8.0 mm x 3.0 mm) The limited size for ECA3216 is L>30 mm and D>6mm Land Pattern TYPE-1 TEST BOARD ELECTRONIC CHARACTERISTICS *Note 1. Central Frequency should be defined after customers’ application approval. Item Specification Working Frequency Range 2.4GHz~2.4835GHz (Note-1) Gain 2.09 dBi (Typical) VSWR2.0 max. PolarizationLinear Azimuth Beamwidth Omni-directional Impedance 50 Power Capacity 3 W max. Maximum Input Power 5 Watts for 5 minutes Approval sheet Page 4 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 Type-2: Empty Space 6.3mm x 4.0 mm Figure (Empty Space 6.3 mm x 4.0 mm) The limited size for ECA3 216 is L>30mm and D>6mm Land Pattern TYPE-2 TEST BOARD ELECTRONI C CHARACTERISTICS *Note 1. Central Frequency should be defined after customers’ application approval. Item Specification Working Frequency Range 2.4GHz~2.4835GHz (Note-1) Gain 2.09 dBi (Typical) VSWR2.0 max. PolarizationLinear Azimuth Beamwidth Omni-directional Impedance 50 Power Capacity 3 W max. Maximum Input Power 5 Watts for 5 minutes Approval sheet Page 5 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 Antenna on Type-1 Test Board ( Empty Space 8x3 mm &Thick ness 0.8mm) Antenna S1 1 on Type-1 Test Board Antenna VSWR on Type-1 Test Board 1.782 @ 2.40 GHz 1.328 @ 2.45 GHz 1.816 @ 2.50 GHz -1 1.0208 dB @ 2.40 GHz -17.0222 dB @ 2.45 GHz -10.7612 dB @ 2.50 GHz Approval sheet Page 6 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 Antenna on Type-2 Test Board ( Empty Space 6.3x4 mm &Thick ness 0.8mm) Antenna S1 1 on Type-2 Test Board Antenna VSWR on Type-2 Test Board 1.453 @ 2.40 GHz 1.216 @ 2.45 GHz 1.732 @ 2.50 GHz -14.6741 dB @ 2.40 GHz -20.2120 dB @ 2.45 GHz -11.4374 dB @ 2.50 GHz Approval sheet Page 7 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 RADIATION PATTERN Radiation Pattern and Gain were dependent on measurement board design. The specification of RFECA3216060A1T antenna was measured based on the PCB size and installation position as shown in the below figure Test Board. Antenna on Type-1 Test Board ZX plane ZY plane XY plane Frequency [MHz] Max Value [dB] Average [dB] Max Value [dB] Average [dB] Max Value [dB] Average [dB] 2400 0.29 -3.32 1.82 -0.51 1.49 -2.87 2450 0.55 -2.88 2.09 -0.21 1.95 -2.48 2500 -0.15-3.44 1.82 -0.62 1.82 -2.73 Approval sheet Page 8 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 Antenna on Type-2 Test Board ZX plane ZY plane XY plane Frequency [MHz] Max Value [dB] Average [dB] Max Value [dB] Average [dB] Max Value [dB] Average [dB] 2400 1.57 -2.83 1.95 -0.76 1.10 -2.93 2450 1.70 -2.62 2.02 -0.62 1.57 -2.61 2500 1.46 -2.82 1.90 -0.71 1.75 -2.68 Approval sheet Page 9 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 RELIABILITY TEST Test item Test condition / Test method Specification Solderability JIS C 0050-4.6 JESD22-B102D *Solder bath temperature：235  5C *Immersion time：2  0.5 sec Solder：Sn3Ag0.5Cu for lead-free At least 95% of a surface of each terminal electrode must be covered by fresh solder. Leaching (Resistance to dissolution of metallization) IEC 60068-2-58 *Solder bath temperature：260  5C *Leaching immersion time：30  0.5 sec Solder : SN63A Loss of metallization on the edges of each electrode shall not exceed 25%. Resistance to soldering heat JIS C 0050-5.4 *Preheating temperature：120~150°C, 1 minute. *Solder temperature：2705C *Immersion time：101 sec Solder：Sn3Ag0.5Cu for lead-free Measurement to be made after keeping at room temperature for 242 hrs No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Loss of metallization on the edges of each electrode shall not exceed 25%. Drop Test JIS C 0044 Customer’s specification. *Height：75 cm *Test Surface：Rigid surface of concrete or steel. *Times：6 surfaces for each units；2 times for each side. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Vibration JIS C 0040 *Frequency：10Hz~55Hz~10Hz(1min) *Total amplitude：1.5mm *Test times：6hrs.(Two hrs each in three mutually perpendicular directions) No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Adhesive Strength of Termination JIS C 0051- 7.4.3 *Pressurizing force： 5N(≦0603)；10N(>0603) *Test time：10±1 sec No remarkable damage or removal of the termination. Approval sheet Page 10 of 12 ASC_RFECA3216060A1T_V09 Aug. 2018 Bending test JIS C 0051- 7.4.1 The middle part of substrate shall be pressurized by means of the pressurizing rod at a rate of about 1 mm/s per second until the deflection becomes 1mm/s and then pressure shall be maintained for 51 sec. Measurement to be made after keeping at room temperature for 242 hours No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the o…

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Dongguan Pure Audio Technology Co., Ltd. Model Difference Statement Dear Sir/Madam, Added models UP-6K11 basis of the original product Hear2. The color of appearance and model name of series models listed are different from the main model, but the circuit and the electronic construction are the same, declared by the manufacturer. Sincerely, Name: Chunchun He Title: Manager Company name: Dongguan Pure Audio Technology Co., Ltd. Address: Room 814, No.183 Chonghuan Middle Road, Shijie Town, Dongguan China

Report No: SSP24080036-1E FCC ID: 2A378-HEAR2 Annex of Test Report Annex A. EUT External Photos EUT View 1 EUT View 2 Report No: SSP24080036-1E FCC ID: 2A378-HEAR2 Annex of Test Report EUT View 3 EUT View 4 Report No: SSP24080036-1E FCC ID: 2A378-HEAR2 Annex of Test Report EUT View 5 EUT View 6 Report No: SSP24080036-1E FCC ID: 2A378-HEAR2 Annex of Test Report EUT View 7

Report No: SSP24080036-1E FCC ID: 2A378-HEAR2 Annex of Test Report Annex D. Label and Information FCC Label Sample FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

FCC ID: 2A378-HEAR2 RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance 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 Here, The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. For BR+EDR Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit 3.16 3(±1) 4 2.51 2480 5 0.790550 3.0 So a SAR test is not required

CCUT Testing & Certification Report No: SSP24080036-1E FCC Test Report Page 1 of 52 FCC TEST REPORT FCC ID: 2A378-HEAR2 Report No. : SSP24080036-1E Applicant : Dongguan Pure Audio Technology Co., Ltd. Product Name : Bone Conduction Bluetooth Headphones Model Name : Hear2 Test Standard : FCC Part 15.247 Date of Issue : 2024-08-27 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. CCUT Testing & Certification Report No: SSP24080036-1E FCC Test Report Page 2 of 52 Test Report Basic Information Applicant..................................: Dongguan Pure Audio Technology Co., Ltd. Address of Applicant...............: Room 814, No.183 Chonghuan Middle Road, Shijie Town, Dongguan China Manufacturer..........................: WANSTONIC ELECTRONICS (DONG GUAN) CO., Ltd. Address of Manufacturer........: Tung Fu Rd.West, ShiJie Town, Dongguan City, Guangdong, China Product Name.........................: Bone Conduction Bluetooth Headphones Brand Name.............................: - Main Model..............................: Hear2 Series Models..........................: UP-6K11 Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C63.10-2013 Date of Test .............................: 2024-08-08 to 2024-08-13 Test Result...............................: PASS Tested By ................................: (Colin Chen) Reviewed By............................: (Lieber Ouyang) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. CCUT Testing & Certification Report No: SSP24080036-1E FCC Test Report Page 3 of 52 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................6 1.3 Compliance Standards ...........................................................................................................................................7 1.4 Test Facilities ........................................................................................................................................................7 1.5 List of Measurement Instruments ..........................................................................................................................8 1.6 Measurement Uncertainty .....................................................................................................................................9 2. Summary of Test Results ........................................................................................................................................... 10 3. Antenna Requirement ............................................................................................................................................... 11 3.1 Standard and Limit.............................................................................................................................................. 11 3.2 Test Result .......................................................................................................................................................... 11 4. Conducted Emissions ................................................................................................................................................ 12 4.1 Standard and Limit.............................................................................................................................................. 12 4.2 Test Procedure.................................................................................................................................................... 12 4.3 Test Data and Results .......................................................................................................................................... 13 5. Radiated Emissions ................................................................................................................................................... 16 5.1 Standard and Limit.............................................................................................................................................. 16 5.2 Test Procedure.................................................................................................................................................... 16 5.3 Test Data and Results .......................................................................................................................................... 18 6. Band-edge Emissions(Radiated) ............................................................................................................................ 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results ........................................................................................................…

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