FCC ID 2ALET-KW1601

myFirst Fone S4

by myFirst Tech Asia Pte. Ltd.

Grantee Code: 2ALET Product Code: KW1601

Latest application date: 2026-10-19

FCC ID Device Details

FCC ID	2ALET-KW1601
Mirrors	fcc.id \| gov \| fccid.ai
Grantee Code	2ALET
Product Code	KW1601
Applicant Business	myFirst Tech Asia Pte. Ltd. 🇸🇬
Related Domains	myfirst.tech glocerts.com
Equipment Class	myFirst Fone S4
Test Firm	Dongguan Yaxu (AiT) Technology Limited

Operating Frequencies

Frequency Range	Application Purpose	Final Action Date
2412-2462 MHz	Original Equipment	2026-10-19
2402-2480 MHz	Original Equipment	2026-10-19
2500-2570 MHz	Original Equipment	2026-10-19

Exhibits

Document	Type	Available	File
User manual	Users Manual	2026-10-19	PDF 2.2 MB
Internal photo	Internal Photos	2026-10-19	PDF 4 MB
External photo	External Photos	2026-10-19	PDF 2.6 MB
label and label location	ID Label/Location Info	2026-10-19	PDF 288.3 KB
Test Setup photo-SAR	Test Setup Photos	2026-10-19	PDF 753.4 KB
Test setup photos_DSS DTS NII	Test Setup Photos	2026-10-19	PDF 839.7 KB
Test setup photos_PCB	Test Setup Photos	2026-10-19	PDF 676.9 KB
AiTDG-260525014FW1_FCC Test Report_BT_Part1	Test Report	2026-10-19	PDF 5.5 MB
AiTDG-260525014FW1_FCC Test Report_BT_Part2	Test Report	2026-10-19	PDF 2.2 MB
AiTDG-260525014FW2_FCC Test Report_BLE	Test Report	2026-10-19	PDF 1.1 MB
AiTDG-260525014FW3_FCC Test Report_2.4G WIFI	Test Report	2026-10-19	PDF 1.1 MB
AiTDG-260525014FW4_FCC Test Report_WCDMA	Test Report	2026-10-19	PDF 760.1 KB
AiTDG-260525014FW5_FCC Test Report_LTE	Test Report	2026-10-19	PDF 796.9 KB
Antenna specicifation	Test Report	2026-10-19	PDF 2 MB
Appendix RF test data for BLE	Test Report	2026-10-19	PDF 1.8 MB
Appendix RF test data for BT	Test Report	2026-10-19	PDF 5.9 MB
Appendix RF test data for WIFI2.4G	Test Report	2026-10-19	PDF 4.5 MB
Appendix Test Data for LTE_band_12_Part1	Test Report	2026-10-19	PDF 6 MB
Appendix Test Data for LTE_band_12_Part2	Test Report	2026-10-19	PDF 6 MB
Appendix Test Data for LTE_band_12_Part3	Test Report	2026-10-19	PDF 1.4 MB
Appendix Test Data for LTE_band_17_Part1	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_17_Part2	Test Report	2026-10-19	PDF 813.3 KB
Appendix Test Data for LTE_band_2_Part1	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_2_Part2	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_2_Part3	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_2_Part4	Test Report	2026-10-19	PDF 5.4 MB
Appendix Test Data for LTE_band_4_Part1	Test Report	2026-10-19	PDF 6 MB
Appendix Test Data for LTE_band_4_Part2	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_4_Part3	Test Report	2026-10-19	PDF 6 MB
Appendix Test Data for LTE_band_4_Part4	Test Report	2026-10-19	PDF 5.1 MB
Appendix Test Data for LTE_band_5_Part1	Test Report	2026-10-19	PDF 6 MB
Appendix Test Data for LTE_band_5_Part2	Test Report	2026-10-19	PDF 6 MB
Appendix Test Data for LTE_band_5_Part3	Test Report	2026-10-19	PDF 1.5 MB
Appendix Test Data for LTE_band_66_Part1	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_66_Part2	Test Report	2026-10-19	PDF 6 MB
Appendix Test Data for LTE_band_66_Part3	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_66_Part4	Test Report	2026-10-19	PDF 5.4 MB
Appendix Test Data for LTE_band_7_Part1	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_7_Part2	Test Report	2026-10-19	PDF 5.9 MB
Appendix Test Data for LTE_band_7_Part3	Test Report	2026-10-19	PDF 5.4 MB
Appendix Test Data for WCDMA_band_2	Test Report	2026-10-19	PDF 5.7 MB
Appendix Test Data for WCDMA_band_4	Test Report	2026-10-19	PDF 5.7 MB
Appendix Test Data for WCDMA_band_5	Test Report	2026-10-19	PDF 5 MB
USA-CoveredEquipmentLetter-Combined_V1.1	Attestation Statements	2026-10-19	PDF 110.8 KB
Us agent-2ALET-KW1601	Attestation Statements	2026-10-19	PDF 519.6 KB
FCC Declaration of Disable WLAN Channel 12 and 13	Cover Letter(s)	2026-10-19	PDF 90.7 KB
USA-ConfidentialityRequestLetter_V0.1	Cover Letter(s)	2026-10-19	PDF 98.1 KB
Appendix D. Calibration Certificate	RF Exposure Info	2026-10-19	PDF 3.7 MB
SZ26100058S01_KW1601_FCC SAR	RF Exposure Info	2026-10-19	PDF 4.2 MB
BLOCK_DIAGRAM Metadata only	Block Diagram		PDF 45.7 KB
Schematic Metadata only	Schematics		PDF 336.5 KB
Operational description Metadata only	Operational Description		PDF 227.1 KB
USA-DueDigilenceLetter_V0.1 Metadata only	Operational Description		PDF 64.8 KB
Part list Metadata only	Parts List/Tune Up Info		PDF 56.7 KB
SBOM Metadata only	Parts List/Tune Up Info		PDF 49.3 KB
Tune Up Metadata only	Parts List/Tune Up Info		PDF 136 KB

Application Information

Application ID	vcl2BtqBuBJsqSNJiq93Cg==
Final Action Date	2026-10-19
Application Purpose	Original Equipment
Applicant FRN	0026335786
Model	KW1601
Frequency Range	2412-2462 MHz
Equipment Class	DTS - Digital Transmission System
Device Description	myFirst Fone S4
Responsible Party	Ying Keong Chaw, yk.chaw@myfirst.tech , 92221475
Non-Technical Contact	Huiying Fan, GLOCERTS TECHNOLOGY INC, huiying.fan@glocerts.com , (626) 588-8039
Test Firm	Coin Tang, Dongguan Yaxu (AiT) Technology Limited, info@aitek.org.cn , +86 0769-82020499
TCB Email	o.kneip@kl-certification.de
TCB Scope	A4: UNII devices & low power transmitters using spread spectrum techniques
Short-Term Confidentiality	No
Long-Term Confidentiality	Yes
Modular Equipment	Does not apply
Composite Device	Yes
Cognitive Radio	No
Authorization Waiver	No
Authorization Waiver Approved	No
Section 5301 Certification	Yes
Related OET Knowledge DataBase Inquiry	No

Applications

Application ID	Date	Purpose
vcl2BtqBuBJsqSNJiq93Cg==	2026-10-19	Original Equipment
nsES4+bO7DzvmjhX0F1dlw==	2026-10-19	Original Equipment
lmpA6sLdGjPRJHljwFDJSA==	2026-10-19	Original Equipment

Equipment Authorization

Frequency	Output	Tolerance	Emission	Rules
2402-2480 MHz	0.001			15C
2412-2462 MHz	0.0216			15C
2402-2480 MHz	0.0027			15C
1852.4-1907.6 MHz	0.1067	2.5 PM	4M17F9W	24E
1712.4-1752.6 MHz	0.0509	2.5 PM	4M17F9W	27
826.4-846.6 MHz	0.065	2.5 PM	4M19F9W	22H
1850-1910 MHz	0.2291	2.5 PM	1M08G7D	24E
1850-1910 MHz	0.1963	2.5 PM	17M9G7D	24E
1850-1910 MHz	0.1774	2.5 PM	17M9W7D	24E
1710-1755 MHz	0.0649	2.5 PM	1M09G7D	27
1710-1755 MHz	0.0573	2.5 PM	17M9G7D	27
1710-1755 MHz	0.0509	2.5 PM	17M9W7D	27
824-849 MHz	0.0746	2.5 PM	8M95G7D	22H
824-849 MHz	0.0631	2.5 PM	8M96W7D	22H
2500-2570 MHz	0.0982	2.5 PM	4M49W7D	27
2500-2570 MHz	0.0838	2.5 PM	17M9G7D	27
2500-2570 MHz	0.0762	2.5 PM	17M9W7D	27
699-716 MHz	0.0062	2.5 PM	1M08G7D	27
699-716 MHz	0.006	2.5 PM	8M95G7D	27
699-716 MHz	0.0049	2.5 PM	8M97W7D	27
777-787 MHz	0.0082	2.5 PM	8M96G7D	27
777-787 MHz	0.0067	2.5 PM	8M95W7D	27
704-716 MHz	0.0066	2.5 PM	4M48G7D	27
704-716 MHz	0.0061	2.5 PM	8M96G7D	27
704-716 MHz	0.0049	2.5 PM	8M96W7D	27
1710-1780 MHz	0.0701	2.5 PM	1M08G7D	27
1710-1780 MHz	0.0593	2.5 PM	17M9G7D	27
1710-1780 MHz	0.0512	2.5 PM	18M0W7D	27

Grants

TCB Grant - Application vcl2BtqBuBJsqSNJiq93Cg==

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: 10/19/2026

Application Dated: 10/19/2026

myFirst Tech Asia Pte. Ltd.

8 Admiralty Street, #06-03 Admirax,

Singapore, 757438
Singapore

Attention: Ying Keong Chaw , Mr

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:	2ALET-KW1601

Name of Grantee:	myFirst Tech Asia Pte. Ltd.

Equipment Class:	Digital Transmission System
Notes:	myFirst Fone S4

Grant Notes	FCC Rule Parts	Frequency Range (MHZ)	Output Watts	Frequency Tolerance	Emission Designator
	15C	2402.0 - 2480.0	0.001
	15C	2412.0 - 2462.0	0.0216

Output Power listed is peak conducted. This device supports 802.11b, 802.11g and 802.11n with a 20 MHz and 40 MHz bandwidth mode. For extremity (wrist) operation, this device has been tested and meets FCC RF exposure guidelines when used with an accessory that contains no metal and that the distance for product specific (front of face) and extremity (wrist) is 5 mm and 0 mm separately. Use of other accessories may not ensure compliance with FCC RF exposure guidelines. End users must be informed of the body worn requirements for satisfying RF Exposure compliance. The highest reported SAR for product specific (front of face), extremity (wrist) and simultaneous transmission use conditions are 0.32 W/kg, 0.27 W/kg and 0.99 W/kg, respectively.

TCB Grant - Application nsES4+bO7DzvmjhX0F1dlw==

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: 10/19/2026

Application Dated: 10/19/2026

myFirst Tech Asia Pte. Ltd.

8 Admiralty Street, #06-03 Admirax,

Singapore, 757438
Singapore

Attention: Ying Keong Chaw , Mr

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:	2ALET-KW1601

Name of Grantee:	myFirst Tech Asia Pte. Ltd.

Equipment Class:	Part 15 Spread Spectrum Transmitter
Notes:	myFirst Fone S4

Grant Notes	FCC Rule Parts	Frequency Range (MHZ)	Output Watts	Frequency Tolerance	Emission Designator
	15C	2402.0 - 2480.0	0.0027

Output Power listed is peak conducted.

TCB Grant - Application lmpA6sLdGjPRJHljwFDJSA==

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: 10/19/2026

Application Dated: 10/19/2026

myFirst Tech Asia Pte. Ltd.

8 Admiralty Street, #06-03 Admirax,

Singapore, 757438
Singapore

Attention: Ying Keong Chaw , Mr

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:	2ALET-KW1601

Name of Grantee:	myFirst Tech Asia Pte. Ltd.

Equipment Class:	PCS Licensed Transmitter
Notes:	myFirst Fone S4

Grant Notes	FCC Rule Parts	Frequency Range (MHZ)	Output Watts	Frequency Tolerance	Emission Designator
	24E	1852.4 - 1907.6	0.1067	2.5 PM	4M17F9W
	27	1712.4 - 1752.6	0.0509	2.5 PM	4M17F9W
	22H	826.4 - 846.6	0.065	2.5 PM	4M19F9W
	24E	1850.0 - 1910.0	0.2291	2.5 PM	1M08G7D
	24E	1850.0 - 1910.0	0.1963	2.5 PM	17M9G7D
	24E	1850.0 - 1910.0	0.1774	2.5 PM	17M9W7D
	27	1710.0 - 1755.0	0.0649	2.5 PM	1M09G7D
	27	1710.0 - 1755.0	0.0573	2.5 PM	17M9G7D
	27	1710.0 - 1755.0	0.0509	2.5 PM	17M9W7D
	22H	824.0 - 849.0	0.0746	2.5 PM	8M95G7D
	22H	824.0 - 849.0	0.0631	2.5 PM	8M96W7D
	27	2500.0 - 2570.0	0.0982	2.5 PM	4M49W7D
	27	2500.0 - 2570.0	0.0838	2.5 PM	17M9G7D
	27	2500.0 - 2570.0	0.0762	2.5 PM	17M9W7D
	27	699.0 - 716.0	0.0062	2.5 PM	1M08G7D
	27	699.0 - 716.0	0.006	2.5 PM	8M95G7D
	27	699.0 - 716.0	0.0049	2.5 PM	8M97W7D
	27	777.0 - 787.0	0.0082	2.5 PM	8M96G7D
	27	777.0 - 787.0	0.0067	2.5 PM	8M95W7D
	27	704.0 - 716.0	0.0066	2.5 PM	4M48G7D
	27	704.0 - 716.0	0.0061	2.5 PM	8M96G7D
	27	704.0 - 716.0	0.0049	2.5 PM	8M96W7D
	27	1710.0 - 1780.0	0.0701	2.5 PM	1M08G7D
	27	1710.0 - 1780.0	0.0593	2.5 PM	17M9G7D
	27	1710.0 - 1780.0	0.0512	2.5 PM	18M0W7D

Output power listed is ERP for operation below 1GHz and EIRP for operation above 1GHz. This device supports LTE bandwidths of 1.4, 3, 5, 10, 15, 20 MHz at LTE Band 2/4/66 and of 1.4, 3, 5, 10 MHz at LTE Band 5/12 and of 5, 10, 15, 20 MHz at LTE Band 7 and of 1.4, 3, 5, 10 MHz at LTE Band 13/17. For extremity (wrist) operation, this device has been tested and meets FCC RF exposure guidelines when used with an accessory that contains no metal and that the distance for product specific (front of face) and extremity (wrist) is 5 mm and 0 mm separately. Use of other accessories may not ensure compliance with FCC RF exposure guidelines. End users must be informed of the body worn requirements for satisfying RF Exposure compliance. The highest reported SAR for product specific (front of face), extremity (wrist) and simultaneous transmission use conditions are 0.60 W/kg, 0.73 W/kg and 0.99 W/kg, respectively. This device contains functions that are not operational in U.S. Territories. This filing is only applicable for US operations.