1. FCC ID
  2. 2A25A
  3. 2A25A-F4

FCC ID 2A25A-F4

F4 Headphones

by YI ZHAO (SHENZHEN) CO., LIMITED.

Grantee Code: 2A25A   Product Code: F4
Latest application date: 2025-08-18

FCC ID Device Details

FCC ID2A25A-F4
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2A25A
Product CodeF4
Applicant BusinessYI ZHAO (SHENZHEN) CO., LIMITED. 🇨🇳
Related Domains oneodio.com
Equipment ClassF4 Headphones
Test FirmShenzhen Microtest Co., Ltd.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2402-2480 MHzOriginal Equipment2025-08-18

Exhibits

DocumentTypeAvailableFile
User manualUsers Manual2025-08-18PDF 5.4 MB
Internal photosInternal Photos2025-08-18PDF 1.1 MB
External photosExternal Photos2025-08-18PDF 739.5 KB
ID label and locationID Label/Location Info2025-08-18PDF 1.2 MB
Test Setup photoTest Setup Photos2025-08-18PDF 428 KB
Antenna SpecificationTest Report2025-08-18PDF 902 KB
Test report part1Test Report2025-08-18PDF 2.9 MB
Test report part2Test Report2025-08-18PDF 5.8 MB
Attestation_StatementAttestation Statements2025-08-18PDF 428.8 KB
Kaspersky StatementAttestation Statements2025-08-18PDF 671.7 KB
Product similarity DeclarationAttestation Statements2025-08-18PDF 73.6 KB
TCB_validation_US_agent_processAttestation Statements2025-08-18PDF 2 MB
Us_AgentAttestation Statements2025-08-18PDF 154.6 KB
ConfidentialityCover Letter(s)2025-08-18PDF 473.2 KB
Letter AuthorizationCover Letter(s)2025-08-18PDF 207.9 KB
RF ExposureRF Exposure Info2025-08-18PDF 334 KB
Block Diagram Metadata onlyBlock DiagramPDF 231 KB
Schematics Metadata onlySchematicsPDF 161.1 KB
Operational Description Metadata onlyOperational DescriptionPDF 275.4 KB

Application Information

Application IDk4iuEKtcXsQ9TlhdNYMmAA==
Final Action Date2025-08-18
Application PurposeOriginal Equipment
Applicant FRN0031347248
ModelF4
Frequency Range2402-2480 MHz
Equipment ClassDSS - Part 15 Spread Spectrum Transmitter
Device DescriptionF4 Headphones
Responsible PartyJenny Qiu, Purchasing Manager, 666@oneodio.com , 0755-29082307
Technical ContactLeon Chen, Shenzhen Microtest Co., Ltd, leon@51mti.com , +86-755 88850135
Test FirmTina Huang, Shenzhen Microtest Co., Ltd., tinahuang@51mti.com , 0755-88850135-1132
TCB Emailelabscert@applus.com
TCB ScopeA4: UNII devices & low power transmitters using spread spectrum techniques
Short-Term ConfidentialityNo
Long-Term ConfidentialityYes
Grant DeferralNo
Modular EquipmentDoes not apply
Composite DeviceNo
Composite PartNo
Cognitive RadioNo
Authorization WaiverNo
Authorization Waiver ApprovedNo
Section 5301 CertificationYes
Related OET Knowledge DataBase InquiryNo
Grant CommentsOutput power listed is conducted.

Applications

Application IDDatePurpose
k4iuEKtcXsQ9TlhdNYMmAA==2025-08-18Original Equipment

Equipment Authorization

FrequencyOutput
2402-2480 MHz0.0008000

Grants

TCB Grant - Application k4iuEKtcXsQ9TlhdNYMmAA==

TCB GRANT OF EQUIPMENT
AUTHORIZATION		 TCB
Certification
Issued Under the Authority of the
Federal Communications Commission
By:

  LGAI Technological Center S.A. (APPLUS)
Ronda de la Font del Carme, s/n <BR>P.O. Box 08193,
Barcelona,
Spain 		Date of Grant: 08/18/2025

Application Dated: 08/18/2025
YI ZHAO (SHENZHEN) CO., LIMITED.
6th Floor, T3 Creative Building,Creative Expo City
No.5010 Baoan Avenue, Hangcheng Street,Baoan
Shenzhen,
China
 
Attention: Jenny Qiu , Purchasing Manager

NOT TRANSFERABLE
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below.
 
FCC IDENTIFIER:  2A25A-F4
Name of Grantee:  YI ZHAO (SHENZHEN) CO., LIMITED.
Equipment Class: Part 15 Spread Spectrum Transmitter
Notes: F4 Headphones
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.0008  

Output power listed is conducted.