1. FCC ID
  2. 2BTTG
  3. 2BTTG-K221

FCC ID 2BTTG-K221

Smart Lock

by Hangzhou Key to the Future Technology Co., Ltd.

Grantee Code: 2BTTG   Product Code: K221
Latest application date: 2026-05-14

FCC ID Device Details

FCC ID2BTTG-K221
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2BTTG
Product CodeK221
Applicant BusinessHangzhou Key to the Future Technology Co., Ltd. 🇨🇳
Related Domains glocerts.com
Equipment ClassSmart Lock
Test FirmPrecise Testing & Certification Co., LTD.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2412-2462 MHzOriginal Equipment2026-05-14

Exhibits

DocumentTypeAvailableFile
Users ManualUsers Manual2026-05-14PDF 3 MB
Internal PhotosInternal Photos2026-05-14PDF 968.1 KB
External PhotosExternal Photos2026-05-14PDF 1,014 KB
ID Label/Location InfoID Label/Location Info2026-05-14PDF 223.7 KB
Test Setup PhotosTest Setup Photos2026-05-14PDF 562.5 KB
Antenna Specification-BTTest Report2026-05-14PDF 355.5 KB
Antenna Specification-WIFITest Report2026-05-14PDF 1.5 MB
Test Report-BLE-1Test Report2026-05-14PDF 5.2 MB
Test Report-BLE-2Test Report2026-05-14PDF 2.3 MB
Test Report-WIFI-1Test Report2026-05-14PDF 5.2 MB
Test Report-WIFI-2Test Report2026-05-14PDF 5.4 MB
Test Report-WIFI-3Test Report2026-05-14PDF 1.8 MB
Covered Equipment Certification Attestation LetterAttestation Statements2026-05-14PDF 106.5 KB
FCC U.S. Agent Designation AttestationAttestation Statements2026-05-14PDF 145.2 KB
Request for ConfidentialityCover Letter(s)2026-05-14PDF 77.1 KB
RF Exposure InfoRF Exposure Info2026-05-14PDF 213.4 KB
Block Diagram Metadata onlyBlock DiagramPDF 37 KB
Schematics Metadata onlySchematicsPDF 811.8 KB
Operational Description Metadata onlyOperational DescriptionPDF 105.8 KB
Part List Metadata onlyParts List/Tune Up InfoPDF 96.7 KB

Application Information

Application IDEfsvcMu6qjaDgtwoY4hfPg==
Final Action Date2026-05-14
Application PurposeOriginal Equipment
Applicant FRN0037775889
ModelK221
Frequency Range2412-2462 MHz
Equipment ClassDTS - Digital Transmission System
Device DescriptionSmart Lock
Responsible PartyJiaqi Fu, f451405296@gmail.com , +86-18108405211
Non-Technical ContactHuiying Fan, GLOCERTS TECHNOLOGY INC, huiying.fan@glocerts.com , (626) 588-8039
Test FirmYang Juan, Precise Testing & Certification Co., LTD., qc02@ptc-testing.com , +86-13267259187
TCB EmailTCB@nemko.com
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
EfsvcMu6qjaDgtwoY4hfPg==2026-05-14Original Equipment

Equipment Authorization

FrequencyOutputRules
2402-2480 MHz0.001215C
2412-2462 MHz0.025915C

Grants

TCB Grant - Application EfsvcMu6qjaDgtwoY4hfPg==

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

  Nemko North America, Inc.
303 River Road
Ottawa, Ontario, K1V 1H2
Canada 		Date of Grant: 05/14/2026

Application Dated: 05/14/2026
Hangzhou Key to the Future Technology Co., Ltd.
Room 102-2, Building 1, No. 7 Jianghui South Road,
Changhe Subdistrict, Binjiang District,
Hangzhou City, Zhejiang Province, 310051
China
 
Attention: Jiaqi Fu , Quality Supervisor

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:  2BTTG-K221
Name of Grantee:  Hangzhou Key to the Future Technology Co., Ltd.
Equipment Class: Digital Transmission System
Notes: Smart Lock
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.0012  
15C 2412.0  -  2462.0 0.0259  

Output power listed is conducted. This device has 20 MHz and 40 MHz bandwidth mode. This device must be installed and operated to provide a separation distance of at least 20 cm from all persons and must not be co-located or operated in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures.