1. FCC ID
  2. 2BU3N
  3. 2BU3N-DUO

FCC ID 2BU3N-DUO

Charging Coaster

by Ernst, Inc.

Grantee Code: 2BU3N   Product Code: DUO
Latest application date: 2026-03-23

FCC ID Device Details

FCC ID2BU3N-DUO
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2BU3N
Product CodeDUO
Applicant BusinessErnst, Inc. 🇺🇸
Equipment ClassCharging Coaster
Test FirmShenzhen Microtest Co., Ltd.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
0.115-0.205 MHzOriginal Equipment2026-03-23

Exhibits

DocumentTypeAvailableFile
User manualUsers Manual2026-03-23PDF 187.8 KB
Internal photosInternal Photos2026-03-23PDF 1.4 MB
External photosExternal Photos2026-03-23PDF 1.3 MB
ID label and locationID Label/Location Info2026-03-23PDF 122.5 KB
Test Setup photoTest Setup Photos2026-03-23PDF 672.1 KB
Antenna SpecificationTest Report2026-03-23PDF 134.9 KB
Test report BLETest Report2026-03-23PDF 1.1 MB
Attestation StatementAttestation Statements2026-03-23PDF 430.6 KB
Kaspersky StatementAttestation Statements2026-03-23PDF 667.7 KB
Product similarity DeclarationAttestation Statements2026-03-23PDF 69.6 KB
TCB_validation_US_agent_processAttestation Statements2026-03-23PDF 1 MB
Us_AgentAttestation Statements2026-03-23PDF 158.2 KB
ConfidentialityCover Letter(s)2026-03-23PDF 474.5 KB
Letter AuthorizationCover Letter(s)2026-03-23PDF 209.8 KB
MPERF Exposure Info2026-03-23PDF 396.2 KB
Block Diagram Metadata onlyBlock DiagramPDF 58.5 KB
Schematics Metadata onlySchematicsPDF 423.3 KB
Operational Description Metadata onlyOperational DescriptionPDF 224.8 KB

Application Information

Application IDN5hua+p8WIBrPDebOo2rzA==
Final Action Date2026-03-23
Application PurposeOriginal Equipment
Applicant FRN0038112702
ModelDUO
Frequency Range0.115-0.205 MHz
Equipment ClassDCD - Part 15 Low Power Transmitter Below 1705 kHz
Device DescriptionCharging Coaster
Responsible PartyErnst Ryan, ernst_23@hotmail.com , 1 701 483 0173
Technical ContactLeon Chen, Shenzhen Microtest Co., Ltd, leon@51mti.com , +86-755 88850135
Non-Technical ContactRyan Ernst, Ernst, Inc., ernst_23@hotmail.com , 1 701 483 0173
Test FirmTina Huang, Shenzhen Microtest Co., Ltd., tinahuang@51mti.com , 0755-88850135-1132
TCB Emailelabscert@applus.com
TCB ScopeA1: Low Power Transmitters below 1 GHz (except Spread Spectrum), Unintentional Radiators, EAS (Part 11) & Consumer ISM devices
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
N5hua+p8WIBrPDebOo2rzA==2026-03-23Original Equipment

Equipment Authorization

FrequencyRules
0.115-0.205 MHz15C

Grants

TCB Grant - Application N5hua+p8WIBrPDebOo2rzA==

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: 03/23/2026

Application Dated: 03/23/2026
Ernst, Inc.
58601, 1516 i-94 business loop east,
Dickinson, ND 58601
 
Attention: Ernst Ryan , CEO

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:  2BU3N-DUO
Name of Grantee:  Ernst, Inc.
Equipment Class: Part 15 Low Power Transmitter Below 1705 kHz
Notes: Charging Coaster
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 0.115  -  0.205  

The antenna used with this transmitter must be installed to provide a minimum separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi- transmitter product procedures. End-users must be provided with operating procedures for satisfying RF exposure compliance.