1. FCC ID
  2. 2ALVK
  3. 2ALVK-HAA31T

FCC ID 2ALVK-HAA31T

WIRELESS HEADPHONES

by Cosonic Intelligent Technologies Co.,Ltd.

Grantee Code: 2ALVK   Product Code: HAA31T
Latest application date: 2026-08-27

FCC ID Device Details

FCC ID2ALVK-HAA31T
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2ALVK
Product CodeHAA31T
Applicant BusinessCosonic Intelligent Technologies Co.,Ltd. 🇨🇳
Related Domains cosonic.net fccusagent.com
Equipment ClassWIRELESS HEADPHONES
Test FirmGuangdong Dongdian Testing Service Co., Ltd.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2402-2480 MHzOriginal Equipment2026-08-27
2402-2480 MHzOriginal Equipment2026-08-27

Exhibits

DocumentTypeAvailableFile
Label and LocationID Label/Location Info2026-08-27PDF 321.3 KB
Antenna Specification LeftTest Report2026-08-27PDF 1.3 MB
Antenna Specification RightTest Report2026-08-27PDF 1.2 MB
SAR Test ReportRF Exposure Info2026-08-27PDF 2.5 MB
SAR Test Report Appendix ARF Exposure Info2026-08-27PDF 467.6 KB
SAR Test Report Appendix BRF Exposure Info2026-08-27PDF 626 KB
SAR Test Report Appendix CRF Exposure Info2026-08-27PDF 4.7 MB
SAR Test Report Appendix ERF Exposure Info2026-08-27PDF 809.3 KB
Test Report Part 1Test Report2026-08-27PDF 5.6 MB
Test Report Part 1Test Report2026-08-27PDF 4.9 MB
Test Report Part 2Test Report2026-08-27PDF 5.4 MB
Test Report Part 2Test Report2026-08-27PDF 5.1 MB
Covered Equipment AttestationAttestation Statements2026-08-27PDF 143.2 KB
U.S. Agent Designation AttestationAttestation Statements2026-08-27PDF 168.6 KB
Agent Authorization LetterCover Letter(s)2026-08-27PDF 122.3 KB
Confidentiality LetterCover Letter(s)2026-08-27PDF 160.4 KB
Declaration LetterCover Letter(s)2026-08-27PDF 96.6 KB
Users Manual Metadata onlyUsers Manual2027-02-22PDF 2.3 MB
Internal Photos Metadata onlyInternal Photos2027-02-22PDF 5 MB
External Photos Metadata onlyExternal Photos2027-02-22PDF 1.8 MB
SAR Setup Photos Metadata onlyTest Setup Photos2027-02-22PDF 1.8 MB
Test Setup Photos Metadata onlyTest Setup Photos2027-02-22PDF 1.4 MB
Block Diagram Metadata onlyBlock DiagramPDF 34.9 KB
Schematics Metadata onlySchematicsPDF 51.5 KB
Operational Description Metadata onlyOperational DescriptionPDF 143.9 KB
Parts List Metadata onlyParts List/Tune Up InfoPDF 171.8 KB

Application Information

Application IDqC4NZDpaaTOdhGK4rVMRQA==
Final Action Date2026-08-27
Application PurposeOriginal Equipment
Applicant FRN0022729867
ModelHAA31T
Frequency Range2402-2480 MHz
Equipment ClassDSS - Part 15 Spread Spectrum Transmitter
Device DescriptionWIRELESS HEADPHONES
Responsible PartyNick Yu, nickyu@cosonic.net , 0769-86596999
Non-Technical ContactTim Payne, FCC US Agent, LLC, Support@FCCUSAgent.com , 7085713148
Test FirmMr. Jamy Yu, Guangdong Dongdian Testing Service Co., Ltd., jamy@dgddt.com , +86-0769-89201646
TCB EmailTCB@nemko.com
TCB ScopeA4: UNII devices & low power transmitters using spread spectrum techniques
Short-Term ConfidentialityYes
Long-Term ConfidentialityYes
Modular EquipmentDoes not apply
Composite DeviceYes
Cognitive RadioNo
Authorization WaiverNo
Authorization Waiver ApprovedNo
Section 5301 CertificationYes
Related OET Knowledge DataBase InquiryNo

Applications

Application IDDatePurpose
qC4NZDpaaTOdhGK4rVMRQA==2026-08-27Original Equipment
EPze8ZynGyg4YW5ExRLyoQ==2026-08-27Original Equipment

Equipment Authorization

FrequencyOutputRules
2402-2480 MHz0.022815C
2402-2480 MHz0.0099315C

Grants

TCB Grant - Application qC4NZDpaaTOdhGK4rVMRQA==

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

  Nemko North America, Inc.
303 River Road
Ottawa, Ontario, K1V 1H2
Canada 		Date of Grant: 08/27/2026

Application Dated: 08/26/2026
Cosonic Intelligent Technologies Co.,Ltd.
NO.3 Keyuan Road, Songshan Lake District,
Dongguan, Guangdong, 523808
China
 
Attention: Nick Yu ,

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:  2ALVK-HAA31T
Name of Grantee:  Cosonic Intelligent Technologies Co.,Ltd.
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 0.0228  

Output power listed is conducted. The highest reported SAR value is < 0.10 W/kg.

TCB Grant - Application EPze8ZynGyg4YW5ExRLyoQ==

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

  Nemko North America, Inc.
303 River Road
Ottawa, Ontario, K1V 1H2
Canada 		Date of Grant: 08/27/2026

Application Dated: 08/26/2026
Cosonic Intelligent Technologies Co.,Ltd.
NO.3 Keyuan Road, Songshan Lake District,
Dongguan, Guangdong, 523808
China
 
Attention: Nick Yu ,

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:  2ALVK-HAA31T
Name of Grantee:  Cosonic Intelligent Technologies Co.,Ltd.
Equipment Class: Digital Transmission System
Notes: WIRELESS HEADPHONES
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.00993  

Output power listed is conducted. The highest reported SAR value is < 0.10 W/kg.