1. FCC ID
  2. 2BYPP
  3. 2BYPP-THETRUNKAC1

FCC ID 2BYPP-THETRUNKAC1

TheTrunk AC1 earbuds

by Zentron International Limited

Grantee Code: 2BYPP   Product Code: THETRUNKAC1
Latest application date: 2026-10-28

FCC ID Device Details

FCC ID2BYPP-THETRUNKAC1
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2BYPP
Product CodeTHETRUNKAC1
Applicant BusinessZentron International Limited 🇨🇳
Related Domains glocerts.com
Equipment ClassTheTrunk AC1 earbuds
Test FirmSHENZHEN CTA TESTING TECHNOLOGY CO., LTD.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2402-2480 MHzOriginal Equipment2026-10-28

Exhibits

DocumentTypeAvailableFile
User ManualUsers Manual2026-10-28PDF 378.7 KB
Internal PhotosInternal Photos2026-10-28PDF 2.4 MB
External PhotosExternal Photos2026-10-28PDF 1.5 MB
Label and locationID Label/Location Info2026-10-28PDF 209.9 KB
Test Setup PhotosTest Setup Photos2026-10-28PDF 474.6 KB
Antenna SpecificationTest Report2026-10-28PDF 545.1 KB
CTA26080500801_Test Report-BT FCC - 2DH5Test Report2026-10-28PDF 5.6 MB
FCC Appendix RF Test Data for BT_Part1Test Report2026-10-28PDF 4.9 MB
FCC Appendix RF Test Data for BT_Part2Test Report2026-10-28PDF 1.5 MB
USA-CoveredEquipmentLetter-Combined_V1.1Attestation Statements2026-10-28PDF 126 KB
US_Agent_2.911(d)(7)-U_V05Attestation Statements2026-10-28PDF 122.9 KB
Declaration Letter of Model Difference - Left&RightCover Letter(s)2026-10-28PDF 91.5 KB
USA-ConfidentialityRequestLetter_V0.1Cover Letter(s)2026-10-28PDF 111.4 KB
CTA26080500802_RF Exposure-infoRF Exposure Info2026-10-28PDF 779.3 KB
Block diagram Metadata onlyBlock DiagramPDF 82 KB
schematic Metadata onlySchematicsPDF 700.9 KB
Operation Description Metadata onlyOperational DescriptionPDF 130.3 KB
USA-DueDigilenceLetter_V0.1 Metadata onlyOperational DescriptionPDF 154.1 KB

Application Information

Application IDiWUYpDlowlED/tpnap7KjA==
Final Action Date2026-10-28
Application PurposeOriginal Equipment
Applicant FRN0039013644
ModelTHETRUNKAC1
Frequency Range2402-2480 MHz
Equipment ClassDSS - Part 15 Spread Spectrum Transmitter
Device DescriptionTheTrunk AC1 earbuds
Responsible PartyYong Zhuang, zy1525320@163.com , 13241315313
Non-Technical ContactHuiying Fan, GLOCERTS TECHNOLOGY INC, huiying.fan@glocerts.com , (626) 588-8039
Test FirmEric Wang, SHENZHEN CTA TESTING TECHNOLOGY CO., LTD., wangxulai@cta-test.cn , 86-755-2322-5875
TCB Emailo.kneip@kl-certification.de
TCB ScopeA4: UNII devices & low power transmitters using spread spectrum techniques
Short-Term ConfidentialityNo
Long-Term ConfidentialityYes
Modular EquipmentDoes not apply
Composite DeviceNo
Cognitive RadioNo
Authorization WaiverNo
Authorization Waiver ApprovedNo
Section 5301 CertificationYes
Related OET Knowledge DataBase InquiryNo

Applications

Application IDDatePurpose
iWUYpDlowlED/tpnap7KjA==2026-10-28Original Equipment

Equipment Authorization

FrequencyOutputRules
2402-2480 MHz0.000815C

Grants

TCB Grant - Application iWUYpDlowlED/tpnap7KjA==

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

  KL-Certification GmbH
Heinrich-Hertz-Allee 7
St. Ingbert, 66386
Germany 		Date of Grant: 10/28/2026

Application Dated: 10/28/2026
Zentron International Limited
UNIT 505, 5/F KING'S COMM BLDG2-4
CHATHAM COURT TSIM SHA, TSUI,
HONGKONG,
China
 
Attention: Yong Zhuang , General 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:  2BYPP-THETRUNKAC1
Name of Grantee:  Zentron International Limited
Equipment Class: Part 15 Spread Spectrum Transmitter
Notes: TheTrunk AC1 earbuds
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 peak conducted.