1. FCC ID
  2. 2BFSI
  3. 2BFSI-WK20

FCC ID 2BFSI-WK20

Wireless microphone

by COOLCOLD TECHNOLOGY(SHENZHEN)CO.,LTD

Grantee Code: 2BFSI   Product Code: WK20
Latest application date: 2025-08-14

FCC ID Device Details

FCC ID2BFSI-WK20
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2BFSI
Product CodeWK20
Applicant BusinessCOOLCOLD TECHNOLOGY(SHENZHEN)CO.,LTD 🇨🇳
Equipment ClassWireless microphone
Test FirmSHENZHEN CTA TESTING TECHNOLOGY CO., LTD.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2402-2480 MHzOriginal Equipment2025-08-14

Exhibits

DocumentTypeAvailableFile
User ManualUsers Manual2025-08-14PDF 4.2 MB
Internal PhotosInternal Photos2025-08-14PDF 559.2 KB
External PhotosExternal Photos2025-08-14PDF 682.3 KB
Label and locationID Label/Location Info2025-08-14PDF 139.8 KB
Test Setup PhotosTest Setup Photos2025-08-14PDF 489.8 KB
Antenna SpecificationTest Report2025-08-14PDF 730.6 KB
CTA25072300301_Test Report-2.4GTest Report2025-08-14PDF 1.9 MB
USA-CoveredEquipmentLetter-Combined_V1.1Attestation Statements2025-08-14PDF 129.1 KB
USA-LocalRepLetter_V1.1 - 2BFSI-WK20Attestation Statements2025-08-14PDF 365.8 KB
Declaration Letter of Model Difference Rev.1Cover Letter(s)2025-08-14PDF 203.8 KB
USA-ConfidentialityRequestLetter_V0.1Cover Letter(s)2025-08-14PDF 107.1 KB
CTA25072300302_RF Exposure-infoRF Exposure Info2025-08-14PDF 559 KB
Block Diagram Metadata onlyBlock DiagramPDF 62.8 KB
schematic Metadata onlySchematicsPDF 54.2 KB
Operation Description Metadata onlyOperational DescriptionPDF 318.4 KB
USA-DueDigilenceLetter_V0.1 Metadata onlyOperational DescriptionPDF 145.8 KB

Application Information

Application ID9chzO1W37bSKaJVQaf14Kg==
Final Action Date2025-08-14
Application PurposeOriginal Equipment
Applicant FRN0035264076
ModelWK20
Frequency Range2402-2480 MHz
Equipment ClassDXX - Part 15 Low Power Communication Device Transmitter
Device DescriptionWireless microphone
Responsible PartyHong Song liang, 2881061666@qq.com , 0755-27900031
Test FirmEric Wang, SHENZHEN CTA TESTING TECHNOLOGY CO., LTD., wangxulai@cta-test.cn , 86-755-2322-5875
TCB Emailo.kneip@kl-certification.de
TCB ScopeA2: Low Power Transmitters (except Spread Spectrum) and radar detectors operating above 1 GHz
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

Applications

Application IDDatePurpose
9chzO1W37bSKaJVQaf14Kg==2025-08-14Original Equipment

Equipment Authorization

Frequency
2402-2480 MHz

Grants

TCB Grant - Application 9chzO1W37bSKaJVQaf14Kg==

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: 08/14/2025

Application Dated: 08/14/2025
COOLCOLD TECHNOLOGY(SHENZHEN)CO.,LTD
Room 1-2 Building 1 & 1st Floor, No. 595, Zhoushi
Road, Jiuwei Community, Hangcheng Street,
Baoan District, Shenzhen,
China
 
Attention: Hong Song liang ,

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:  2BFSI-WK20
Name of Grantee:  COOLCOLD TECHNOLOGY(SHENZHEN)CO.,LTD
Equipment Class: Part 15 Low Power Communication Device Transmitter
Notes: Wireless microphone
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0