1. FCC ID
  2. B4O
  3. B4O-HSJM320
  4. Antenna Specification

HSJM320 Wireless Over-ear Headphones Test... - FCC ID B4O-HSJM320

FCC ID B4O-HSJM320

Antenna Specification

Wireless Over-ear Headphones

by GT-tronics HK Ltd

Document preview loads when visible.

Document Details

FCC IDB4O-HSJM320
Document ID9749289
Document TypeTest Report
DescriptionAntenna Specification
Document Titlechip antenna
ApplicantGT-tronics HK Ltd
Equipment ClassWireless Over-ear Headphones
Product CodeHSJM320
Application IDVM4OYR6CUss/28n+BS4XOw==
Application PurposeOriginal Equipment
Application Date2026-10-22
Frequency Range2402-2480 MHz
FRN0021630322
Test FirmShenzhen BALUN Technology Co., Ltd.
Certified ByWu Xuewen
Short-Term ConfidentialityNo
Long-Term ConfidentialityNo
Modular EquipmentDoes not apply
Composite DeviceYes
Submitted2026-10-22
Available2026-10-22
Created2024-11-13
Modified2024-11-13
Pages3
File TypeAdobe Acrobat PDF
File Size567998
File SHA-256b563f3be1162fe660bc4a8ebb5826ad85abd02d5e3a7044eb6c917fd22a45642
PDF Metadata Authoraylfm
PDF Metadata ProducerGPL Ghostscript 10.03.1 aylfm
FCC.gov SourcesFCC.gov 9749289, FCC.gov 9749276

Related FCC Exhibits

DocumentTypeAvailableFile
ID Label/Location InfoID Label/Location Info2026-10-22PDF 201.2 KB
Antenna SpecificationTest Report2026-10-22PDF 554.7 KB
Test ReportTest Report2026-10-22PDF 3.2 MB
Test Report-1Test Report2026-10-22PDF 2 MB
Test Report-2Test Report2026-10-22PDF 3.4 MB
Covered Equipment Certification Attestation LetterAttestation Statements2026-10-22PDF 29 KB
FCC U.S. Agent Designation AttestationAttestation Statements2026-10-22PDF 55.9 KB
Authority to Act as AgentCover Letter(s)2026-10-22PDF 33.4 KB
Request for ConfidentialtyCover Letter(s)2026-10-22PDF 135.3 KB
RF Exposure InfoRF Exposure Info2026-10-22PDF 1.3 MB
RF Exposure Info-ACRF Exposure Info2026-10-22PDF 4.6 MB
RF Exposure Info-APRF Exposure Info2026-10-22PDF 212.7 KB
RF Exposure Info-ASCRF Exposure Info2026-10-22PDF 137 KB
RF Exposure Info-ATDRF Exposure Info2026-10-22PDF 179.6 KB
Users Manual Metadata onlyUsers Manual2027-04-21PDF 1 MB
Internal Photos Metadata onlyInternal Photos2027-04-21PDF 743.4 KB
External Photos Metadata onlyExternal Photos2027-04-21PDF 619.9 KB
Test Setup Photos Metadata onlyTest Setup Photos2027-04-21PDF 741.2 KB
Test Setup Photos-SAR Metadata onlyTest Setup Photos2027-04-21PDF 68.1 KB
Block Diagram Metadata onlyBlock DiagramPDF 167.4 KB
Schematics Metadata onlySchematicsPDF 65 KB
Operational Description Metadata onlyOperational DescriptionPDF 442.6 KB
Tune Up Metadata onlyParts List/Tune Up InfoPDF 44.6 KB