1. FCC ID
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  3. 2AVIT-K4

FCC ID 2AVIT-K4

Wireless Headphones

by Earfun Technology (HK) Limited

Grantee Code: 2AVIT   Product Code: K4
Latest application date: 2025-03-06

FCC ID Device Details

FCC ID2AVIT-K4
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2AVIT
Product CodeK4
Applicant BusinessEarfun Technology (HK) Limited
Related Domains earfunaudio.com
Equipment ClassWireless Headphones
Test FirmShenzhen Microtest Co., Ltd.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2402-2480 MHzOriginal Equipment2025-03-06

Exhibits

DocumentTypeAvailableFile
User manualUsers Manual2025-03-06PDF 1.7 MB
Internal photosInternal Photos2025-03-06PDF 589 KB
External photosExternal Photos2025-03-06PDF 373.7 KB
ID label and locationID Label/Location Info2025-03-06PDF 555.6 KB
Test Setup photoTest Setup Photos2025-03-06PDF 139.8 KB
Antenna SpecificationTest Report2025-03-06PDF 1.6 MB
Test report 1Test Report2025-03-06PDF 3.7 MB
Test report 2Test Report2025-03-06PDF 2.7 MB
Attestation_StatementAttestation Statements2025-03-06PDF 52.6 KB
US_AgentAttestation Statements2025-03-06PDF 24.3 KB
ConfidentialityCover Letter(s)2025-03-06PDF 108.1 KB
Letter AuthorizationCover Letter(s)2025-03-06PDF 84 KB
RF ExposureRF Exposure Info2025-03-06PDF 849.1 KB
Block Diagram Metadata onlyBlock DiagramPDF 59.1 KB
Schematics Metadata onlySchematicsPDF 174 KB
Operational Description Metadata onlyOperational DescriptionPDF 175.2 KB

Application Information

Application ID6YFDN6tM7UH5iGw4GTmCTw==
Final Action Date2025-03-06
Application PurposeOriginal Equipment
Applicant FRN0029085636
ModelK4
Frequency Range2402-2480 MHz
Equipment ClassDSS - Part 15 Spread Spectrum Transmitter
Device DescriptionWireless Headphones
Responsible PartyRocky Deng, rocky@earfunaudio.com , +8615989596589
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
6YFDN6tM7UH5iGw4GTmCTw==2025-03-06Original Equipment

Equipment Authorization

FrequencyOutput
2402-2480 MHz0.0000100

Grants

TCB Grant - Application 6YFDN6tM7UH5iGw4GTmCTw==

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: 03/06/2025

Application Dated: 03/06/2025
Earfun Technology (HK) Limited
FLAT/RM A 9F,SILVERCORP INTERNATIONAL TOWER
707-713 NATHAN ROAD MONGKOK KL
HONG KONG,
Hong Kong
 
Attention: Rocky Deng ,

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:  2AVIT-K4
Name of Grantee:  Earfun Technology (HK) Limited
Equipment Class: Part 15 Spread Spectrum Transmitter
Notes: Wireless Headphones
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.00001  

Output power listed is conducted.