FCC ID: 2AVIZ-PRO True Wireless Earphones

Trulyway Electronic Development Co., Ltd 2023-02-15 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint SHENZHEN TONGCE TESTING LAB / 2101 & 2201, Zhenchang Factory Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China (Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commissions regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Trulyway Electronic Development Co., Ltd / 4th Floor, A Building, No. 268 of Baoshi East Road, Baoan District, Shenzhen, Guangdong, China

(Applicant Name and address)

<Signature>

Name: Paul Xu Title: N/A Applicant Company: Trulyway Electronic Development Co., Ltd

Trulyway Electronic Development Co., Ltd 2023-02-15 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AVIZ-PRO Product Name: True Wireless Earphones Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:

Schematics Block diagram Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors.

<Signature>

Name: Paul Xu Title: N/A Company: Trulyway Electronic Development Co., Ltd

Trulyway Electronic Development Co., Ltd Covered Equipment Certification Attestation Letter 2/16/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AVIZ-PRO Trulyway Electronic Development 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not covered equipment. Trulyway Electronic Development 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. Signed:

Printed name: Paul Xu Title: N/A Company Name: Trulyway Electronic Development Co., Ltd Date: 2/16/2023

Trulyway Electronic Development Co., Ltd U.S. Agent Designation for Service of Process -

Certification Attestation Letter 2/16/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AVIZ-PRO Per section 2.911(d)(7) of the FCC rules, Trulyway Electronic Development Co., Ltd (the applicant) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process:

Company Name: Strax Americas, Inc. FCC Registration Number (FRN): 0033412826 Physical U.S. Company Address: 2606 NW 97" Ave, Doral, FL 33172 Contact Person: Paul G Dryke Agent Email Address: paul.dryke@strax.com The above contact person accepts the obligation for service of process, The applicant 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. Applicant Signed: Agent Signed (if different from Applicant):

Signed: Signed: fe Printed ul, Mi Xu Printed name: PauG Dryke Title: N/A Title: Executive Vice President Company Name: Trulyway Electronic Company Name:Strax Americas, Inc. Development Co., Ltd Date: 2/16/2023 Date: 2/17/2023 the applicant must designate a contact located in the United States for purposes of acting as the applicant's agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process.

2.4GHz 3216 Chip Antenna: AAN3216F5P2G45 ______________________________________________________________________________________________________ Application:

WLAN, 802.11b/g, Bluetooth, etc Features SMD, high reliability, ultra Impact, Omni-directional Part number AAN 3216 - F5

(3)

(2) P 2G45

(4)

(5)

(1)

(1)Product Type Chip Antenna

(2)Size Code

(3)Type Code

(4)Packing

(5)Frequency 3.2x1.6mm F5 Paper Tape 2.45GHz Electrical Specification Working Frequency Range 2400 ~2484 MHz Peak Gain Impedance Return loss Polarization Azimuth Beamwidth Operation Temperature() The specification is defined on EVB. 1.6 dBi (Typ.) 50 Ohm 10 dB ( Min) Linear Omni-directional

-40 ~85 Dimension and Terminal Configuration Dimension (mm) No. Terminal Name L W T A 3.15+-0.15 1.55+-0.15 0.50+-0.10 0.35+-0.10 1 2 Feeding point GND 2.4GHz 3216 Chip Antenna: AAN3216F5P2G45 ______________________________________________________________________________________________________ Evaluation Board Reference PCB Dimension Antenna Layout Reference Electrical Characteristics Return Loss Return Loss & Radiation unit :mm Frequency

(MHz) 2400 2442 2484 S11 (dB)

-11.0

-20.2

-10.6 Radiation 2.4GHz 3216 Chip Antenna: AAN3216F5P2G45 ______________________________________________________________________________________________________ Taping Specifications Reel Specification Reel and Taping Specification TYPE SIZE A B C D W M 3216 7 3K/Reel 2.00.5 13.51.0 211.0 601.0 11.52.0 1782.0 Tapping Specification Packaging Type A B W E F G H T Paper Type 3216 1.900.20 3.500.20 8.00.20 1.750.10 3.50.05 4.00.10 2.00.05 0.750.10 D

+0.10 P 1.50

-0 4.00.1 2.4GHz 3216 Chip Antenna: AAN3216F5P2G45 ______________________________________________________________________________________________________ Reliability Table Test ItemProcedureRequirementsCeramic TypeRemark(Reference)ElectricalCharacterizationFulfill the electricalspecificationUser Spec.ThermalShock1.Preconditioning:50 10 / 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 to +85; 100 cycles;15 minutes at Lower category temperature;15 minutes at Upper category temperature.No Visible Damage.Fulfill the electricalspecification.MIL-STD-202107TemperatureCycling1.Initial measure: Spec: refer Initial spec.2.100 Cycles (-30 to +85), Soak Mode=1 (2 Cycle/hours).3.Measurement at 24 2Hours after test condition.No Visible Damage.Fulfill the electricalspecification.JESD22JA104High TemperatureExposure1.Initial measure: Spec: refer Initial spec.2.Unpowered; 500hours @ T=+85.3.Measurement at 24 2 hours after test.No Visible Damage.Fulfill the electricalspecification.MIL-STD-202108Low TemperatureStorage1.Initial measure: Spec: refer Initial spec.2.Unpowered: 500hours @ T= -30.3.Measurement at 24 2 hours after test.No Visible Damage.Fulfill the electricalspecification.MIL-STD-202108Solderability(SMD Bottom Side)Dipping method:a.Temperature: 235 5Cb.Dipping time: 3 0.5sThe solder should coverover 95% of the criticalarea of bottom side.IEC 60384-21/224.10Soldering HeatResistance(RSH)Preheating temperature: 150 10C.Preheating time: 1~2 min.Solder temperature: 260 5C.Dipping time: 5 0.5sNo Visible Damage.IEC 60384-21/224.10Vibration5g's for 20 min., 12 cycles each of 3 orientationsNote: Use 8"X5" PCB .031" thick 7 secure points on, one longside and 2 secure points at corners of opposite sides. Partsmounted within 2" from any secure point. Test from 10-2000Hz.No Visible Damage.MIL-STD-202Method 204MechanicalShockThree shocks in each direction shall be applied along the threemutually perpendicular axes of the test specimen (18 shocks)Peak value: 1,500gsDuration: 0.5msVelocity change: 15.4 ft/sWaveform: Half-sineNo Visible Damage.MIL-STD-202Method 213HumidityBias1.Humidity: 85% R.H., Temperature: 85 2 C.2.Time: 500 24 hours.3. Measurement at 24 2hrs after test condition.No Visible Damage.Fulfill the electricalspecification.MIL-STD-202Method 106 2.4GHz 3216 Chip Antenna: AAN3216F5P2G45 ______________________________________________________________________________________________________ Revision History Revision Date Content 1 2018/7/20 New issue BoardFlex(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 reaches2 mm.No Visible Damage.AEC-Q200005AdhesionForce of 1.8Kg for 60 seconds.No Visible DamageMagnification of 20X orgreater may be employedfor inspection of themechanical integrity of thedevice body terminals andbody/terminal junction.AEC-Q200006PhysicalDimensionAny applicable method using x10 magnification, micrometers,calipers, gauges, contour projectors, or other measuringequipment, capable of determining the actual specimendimensions.In accordance withspecification.JESD22JB100

Trulyway Electronic Development Co., Ltd 4th Floor, A Building, No. 268 of Baoshi East Road, Baoan District, Shenzhen, Guangdong, China Statement Product: True Wireless Earphones Model: PRO 4 Additional Model: PRO, PRO 3 Trademark: N/A We hereby state that All models above are identical components, and just model names are different for the marketing requirement. in interior structure, electrical circuits and Your assistance on this matter is highly appreciated. Yours sincerely, Signature:

Date: 2023/02/15 Name: Paul Xu Company Name : Trulyway Electronic Development Co., Ltd Address: 4th Floor, A Building, No. 268 of Baoshi East Road, Baoan District, Shenzhen, Guangdong, China Tel / Fax: +86-0755-85273779/+86-0755-85273779 E-Mail:

info@trulyway.com