1. FCC ID
  2. 2BUP4
  3. 2BUP4-CMK2

FCC ID 2BUP4-CMK2

wireless headphones

by Chengdu ROSESELSA Technology Co., Ltd.

Grantee Code: 2BUP4   Product Code: CMK2
Latest application date: 2026-03-02

FCC ID Device Details

FCC ID2BUP4-CMK2
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2BUP4
Product CodeCMK2
Applicant BusinessChengdu ROSESELSA Technology Co., Ltd. 🇨🇳
Related Domains roseselsa.com hyunturlee-commerce.com
Equipment Classwireless headphones
Test FirmShenzhen DL Testing Technology Co., Ltd.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2402-2480 MHzOriginal Equipment2026-03-02

Exhibits

DocumentTypeAvailableFile
User manualUsers Manual2026-03-02PDF 1.5 MB
Internal photosInternal Photos2026-03-02PDF 1.3 MB
External photosExternal Photos2026-03-02PDF 878.9 KB
ID label and locationID Label/Location Info2026-03-02PDF 121.6 KB
Test Setup photoTest Setup Photos2026-03-02PDF 468.9 KB
Antenna SpecificationTest Report2026-03-02PDF 2.8 MB
Test reportTest Report2026-03-02PDF 2.6 MB
Attestation StatementAttestation Statements2026-03-02PDF 430.9 KB
Kaspersky StatementAttestation Statements2026-03-02PDF 676.2 KB
Product similarity DeclarationAttestation Statements2026-03-02PDF 195.4 KB
TCB_validation_US_agent_processAttestation Statements2026-03-02PDF 1.4 MB
Us_AgentAttestation Statements2026-03-02PDF 158.5 KB
ConfidentialityCover Letter(s)2026-03-02PDF 543.8 KB
Letter AuthorizationCover Letter(s)2026-03-02PDF 150.7 KB
MPERF Exposure Info2026-03-02PDF 163.2 KB
Block Diagram Metadata onlyBlock DiagramPDF 88.2 KB
Schematics Metadata onlySchematicsPDF 107.1 KB
Operational Description Metadata onlyOperational DescriptionPDF 70.2 KB

Application Information

Application IDvLvBOFvLq6jh2mOzVTOh+A==
Final Action Date2026-03-02
Application PurposeOriginal Equipment
Applicant FRN0037952363
ModelCMK2
Frequency Range2402-2480 MHz
Equipment ClassDXX - Part 15 Low Power Communication Device Transmitter
Device Descriptionwireless headphones
Responsible PartyHenry Chan, henry@roseselsa.com , 13760447068
Technical ContactJade Yang, Shenzhen DL Testing Technology Co., Ltd., Jade.yang@dl-cert.com , 400-688-3552
Non-Technical ContactJianfeng Gao, Herland International Trading Inc, jianfenggao@hyunturlee-commerce.com , 001-909-772-1888
Test FirmJade Yang, Shenzhen DL Testing Technology Co., Ltd., Jade.yang@dl-cert.com , 400-688-3552
TCB Emailelabscert@applus.com
TCB ScopeA2: Low Power Transmitters (except Spread Spectrum) and radar detectors operating above 1 GHz
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
vLvBOFvLq6jh2mOzVTOh+A==2026-03-02Original Equipment

Equipment Authorization

FrequencyRules
2402-2480 MHz15C

Grants

TCB Grant - Application vLvBOFvLq6jh2mOzVTOh+A==

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: 03/02/2026

Application Dated: 03/02/2026
Chengdu ROSESELSA Technology Co., Ltd.
Room 302,3rd Floor,Building 4,Yingcaijiayuan,
No.569 East Jinfu Road,Zitong Community,Tianfu
Block, Wenjiang District,Chengdu,Sichuan, China,
China
 
Attention: Henry Chan ,

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:  2BUP4-CMK2
Name of Grantee:  Chengdu ROSESELSA Technology Co., Ltd.
Equipment Class: Part 15 Low Power Communication Device Transmitter
Notes: wireless headphones
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0