1. FCC ID
  2. 2AHFT
  3. 2AHFT877

FCC ID 2AHFT877

Smart Ring

by Shenzhen DO Intelligent Technology Co., Ltd.

Grantee Code: 2AHFT   Product Code: 877
Latest application date: 2025-08-22

FCC ID Device Details

FCC ID2AHFT877
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2AHFT
Product Code877
Applicant BusinessShenzhen DO Intelligent Technology Co., Ltd. 🇨🇳
Related Domains youduoyun.com
Equipment ClassSmart Ring
Test FirmShenzhen Huaxia Testing Technology Co., Ltd

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2402-2480 MHzOriginal Equipment2025-08-22

Exhibits

DocumentTypeAvailableFile
Users ManualUsers Manual2025-08-22PDF 4.6 MB
Internal Photos 1Internal Photos2025-08-22PDF 2.6 MB
Internal Photos 2Internal Photos2025-08-22PDF 1.3 MB
Internal Photos 3Internal Photos2025-08-22PDF 2.4 MB
Internal Photos 4Internal Photos2025-08-22PDF 1.9 MB
Internal Photos 5Internal Photos2025-08-22PDF 2.2 MB
Internal Photos 6Internal Photos2025-08-22PDF 2.2 MB
External Photos 1External Photos2025-08-22PDF 4 MB
External Photos 2External Photos2025-08-22PDF 5.3 MB
External Photos 3External Photos2025-08-22PDF 3.9 MB
External Photos 4External Photos2025-08-22PDF 3.8 MB
External Photos 5External Photos2025-08-22PDF 3.5 MB
External Photos 6External Photos2025-08-22PDF 3.8 MB
ID Label/Location InfoID Label/Location Info2025-08-22PDF 106.8 KB
Test Setup PhotosTest Setup Photos2025-08-22PDF 2.6 MB
ANT Test ReportTest Report2025-08-22PDF 322.8 KB
Test ReportTest Report2025-08-22PDF 4.2 MB
Attestation StatementsAttestation Statements2025-08-22PDF 105.1 KB
US agentAttestation Statements2025-08-22PDF 392.3 KB
Agent AuthorizationCover Letter(s)2025-08-22PDF 90.2 KB
Long term Confidentiality LetterCover Letter(s)2025-08-22PDF 90.9 KB
Model DifferenceCover Letter(s)2025-08-22PDF 131.9 KB
RF Exposure InfoRF Exposure Info2025-08-22PDF 377 KB
Block Diagram Metadata onlyBlock DiagramPDF 139.3 KB
Schematics Metadata onlySchematicsPDF 530.4 KB
Operational Description Metadata onlyOperational DescriptionPDF 107.9 KB

Application Information

Application IDLn8n2lRQ0wSQHKPzLqBTig==
Final Action Date2025-08-22
Application PurposeOriginal Equipment
Applicant FRN0025289893
Model877
Frequency Range2402-2480 MHz
Equipment ClassDTS - Digital Transmission System
Device DescriptionSmart Ring
Responsible PartyWu Dajun, wudj@youduoyun.com , 4006-123-55
Technical ContactWu Dajun, Shenzhen DO Intelligent Technology Co., Ltd, wudj@idoosmart.com , 0755-82529675
Test FirmJack Ai, Shenzhen Huaxia Testing Technology Co., Ltd, szcqa@cqa-cert.com , +8613902988375
TCB Emailtcb@metlabs.com
TCB ScopeA4: UNII devices & low power transmitters using spread spectrum techniques
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
Grant CommentsOutput power listed is conducted.

Applications

Application IDDatePurpose
Ln8n2lRQ0wSQHKPzLqBTig==2025-08-22Original Equipment

Equipment Authorization

FrequencyOutput
2402-2480 MHz0.0022000

Grants

TCB Grant - Application Ln8n2lRQ0wSQHKPzLqBTig==

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

  Eurofins Electrical and Electronic Testing NA, Inc.
914 W. Patapsco Avenue
Baltimore, MD 21230-3432
Date of Grant: 08/22/2025

Application Dated: 08/22/2025
Shenzhen DO Intelligent Technology Co., Ltd.
11th Floor, 3# Building, Guole Tech Park,
Lirong Road, Dalang, Longhua District,
Shenzhen,
China
 
Attention: Wu Dajun ,

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:  2AHFT877
Name of Grantee:  Shenzhen DO Intelligent Technology Co., Ltd.
Equipment Class: Digital Transmission System
Notes: Smart Ring
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.0022  

Output power listed is conducted.