FCC ID 2AKMBKH-CRZ90T
WIRELESS HEADPHONES
by Kingstate Electronics(DongGuan)Co.,Ltd.
Grantee Code: 2AKMB Product Code: KHCRZ90T
Latest application date: 2026-03-25
FCC ID Device Details
| FCC ID | 2AKMBKH-CRZ90T |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AKMB |
| Product Code | KHCRZ90T |
| Applicant Business | Kingstate Electronics(DongGuan)Co.,Ltd. 🇨🇳 |
| Related Domains |  kingstate.com.tw  fccusagent.com |
| Equipment Class | WIRELESS HEADPHONES |
| Test Firm | Guangdong Dongdian Testing Service Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-03-25 |
| 2402-2480 MHz | Original Equipment | 2026-03-25 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| ID Label and Location | ID Label/Location Info | 2026-03-25 | PDF 1.4 MB |
| ID label and location | ID Label/Location Info | 2026-03-25 | PDF 1.4 MB |
| Antenna report-L | Test Report | 2026-03-25 | PDF 725 KB |
| Antenna report-R | Test Report | 2026-03-25 | PDF 720.3 KB |
| Test Report - SAR-1 | RF Exposure Info | 2026-03-25 | PDF 2.5 MB |
| Test Report - SAR-2 | RF Exposure Info | 2026-03-25 | PDF 352.2 KB |
| Test Report - SAR-3 | RF Exposure Info | 2026-03-25 | PDF 459.4 KB |
| Test Report - SAR-4 | RF Exposure Info | 2026-03-25 | PDF 5.4 MB |
| Test Report-DSS-1 | Test Report | 2026-03-25 | PDF 5.5 MB |
| Test Report-DSS-2 | Test Report | 2026-03-25 | PDF 4.6 MB |
| Test Report-DTS-1 | Test Report | 2026-03-25 | PDF 3.6 MB |
| Test Report-DTS-2 | Test Report | 2026-03-25 | PDF 4.6 MB |
| Test Report_SAR-3 | RF Exposure Info | 2026-03-25 | PDF 5.4 MB |
| Cover Equipment Attestation letter | Attestation Statements | 2026-03-25 | PDF 94.7 KB |
| US Agent Attestation | Attestation Statements | 2026-03-25 | PDF 222.3 KB |
| Confidentiality Letter | Cover Letter(s) | 2026-03-25 | PDF 243.5 KB |
| Confidentiality Request Letter | Cover Letter(s) | 2026-03-25 | PDF 243.5 KB |
| Model Identical Declaration | Cover Letter(s) | 2026-03-25 | PDF 41.6 KB |
| Model identical declaration | Cover Letter(s) | 2026-03-25 | PDF 41.6 KB |
| POA | Cover Letter(s) | 2026-03-25 | PDF 94.3 KB |
| User Manual Metadata only | Users Manual | 2026-09-22 | PDF 2.1 MB |
| Internal Photos-1 Metadata only | Internal Photos | 2026-09-22 | PDF 1.9 MB |
| Internal Photos-2 Metadata only | Internal Photos | 2026-09-22 | PDF 3.2 MB |
| Internal Photos-3 Metadata only | Internal Photos | 2026-09-22 | PDF 3.1 MB |
| External Photos Metadata only | External Photos | 2026-09-22 | PDF 3.4 MB |
| Test Setup Photos Metadata only | Test Setup Photos | 2026-09-22 | PDF 927 KB |
| Test Setup Photos_SAR Metadata only | Test Setup Photos | 2026-09-22 | PDF 831.6 KB |
| Block Diagram Metadata only | Block Diagram | PDF 71.2 KB | |
| Schematic-L Metadata only | Schematics | PDF 99.7 KB | |
| Schematic-R Metadata only | Schematics | PDF 99.5 KB | |
| Schematics-L Metadata only | Schematics | PDF 99.7 KB | |
| Schematics-R Metadata only | Schematics | PDF 99.5 KB | |
| Operation Description Metadata only | Operational Description | PDF 160.2 KB | |
| BOM-1 Metadata only | Parts List/Tune Up Info | PDF 210.5 KB | |
| BOM-2 Metadata only | Parts List/Tune Up Info | PDF 43.3 KB | |
| BOM-L Metadata only | Parts List/Tune Up Info | PDF 210.5 KB | |
| BOM-R Metadata only | Parts List/Tune Up Info | PDF 43.3 KB |
Application Information
| Application ID | ANdsVWN4GaETLBHAha53BQ== |
|---|---|
| Final Action Date | 2026-03-25 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0026103820 |
| Model | KH-CRZ90T |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | WIRELESS HEADPHONES |
| Responsible Party | Jason Guo, josonguo@kingstate.com.tw , 86-769-89212688 |
| Non-Technical Contact | Tim Payne, FCC US Agent, LLC, Support@FCCUSAgent.com , 708-571-3148 |
| Test Firm | Mr. Jamy Yu, Guangdong Dongdian Testing Service Co., Ltd., jamy@dgddt.com  , +86-0769-89201646 |
| TCB Email | TCB@nemko.com  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| 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 |
|---|---|---|
| ANdsVWN4GaETLBHAha53BQ== | 2026-03-25 | Original Equipment |
| 6ThTz2QUqOpJwyWbgRDEKw== | 2026-03-25 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application ANdsVWN4GaETLBHAha53BQ==
| 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: 03/25/2026 Application Dated: 03/25/2026 |
| Kingstate Electronics(DongGuan)Co.,Ltd. |
| No 11 Chong Tian Avenue, Shi Pai Town, |
| Dong Guan City, Guang Dong Province, China. |
| Dongguan, China |
| Attention: Jason Guo , Engineer |
| 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: | 2AKMBKH-CRZ90T |
| Name of Grantee: | Kingstate Electronics(DongGuan)Co.,Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | WIRELESS HEADPHONES |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00944 |
| Output power listed is conducted. The highest Reported SAR for Head Exposure Condition is 0.526 W/kg. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application 6ThTz2QUqOpJwyWbgRDEKw==
| 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: 03/25/2026 Application Dated: 03/25/2026 |
| Kingstate Electronics(DongGuan)Co.,Ltd. |
| No 11 Chong Tian Avenue, Shi Pai Town, |
| Dong Guan City, Guang Dong Province, China. |
| Dongguan, China |
| Attention: Jason Guo , Engineer |
| 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: | 2AKMBKH-CRZ90T |
| Name of Grantee: | Kingstate Electronics(DongGuan)Co.,Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | WIRELESS HEADPHONES |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00543 |
| Output power listed is conducted. The highest Reported SAR for Head Exposure Condition is 0.526 W/kg. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |