FCC ID 2ALHZNBC90
ANC TWS Earbuds
by KO-STAR DEVELOPMENT CO.,LTD
Grantee Code: 2ALHZ Product Code: NBC90
Latest application date: 2025-08-14
FCC ID Device Details
| FCC ID | 2ALHZNBC90 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2ALHZ |
| Product Code | NBC90 |
| Applicant Business | KO-STAR DEVELOPMENT CO.,LTD 🇨🇳 |
| Related Domains |  ko-star.net |
| Equipment Class | ANC TWS Earbuds |
| Test Firm | Attestation of Global Compliance (Shenzhen) Co., L |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-08-14 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Mannul | Users Manual | 2025-08-14 | PDF 1.7 MB |
| Internal Photos | Internal Photos | 2025-08-14 | PDF 1.8 MB |
| External Photos | External Photos | 2025-08-14 | PDF 1.5 MB |
| Label and Location | ID Label/Location Info | 2025-08-14 | PDF 380.8 KB |
| Test Setup | Test Setup Photos | 2025-08-14 | PDF 1.1 MB |
| Antenna | Test Report | 2025-08-14 | PDF 928 KB |
| EDR | Test Report | 2025-08-14 | PDF 5.7 MB |
| 2.911 (d)(5)(i)CertificationEquipmentTypev1.2 | Attestation Statements | 2025-08-14 | PDF 293.2 KB |
| 2.911 (d)(7)USAgentforServiceofProcessv1.5 | Attestation Statements | 2025-08-14 | PDF 422.2 KB |
| 2.911_(d)(5)(ii) Certificiation Applicant v1.3 | Attestation Statements | 2025-08-14 | PDF 293.2 KB |
| Differences Description | Cover Letter(s) | 2025-08-14 | PDF 10 KB |
| FCC Short & Long Term Confidentiality Request Rev4.1 | Cover Letter(s) | 2025-08-14 | PDF 433.1 KB |
| LetterofAuthorizationRev1.0 | Cover Letter(s) | 2025-08-14 | PDF 11.5 KB |
| MPE | RF Exposure Info | 2025-08-14 | PDF 1.7 MB |
| Block diagram Metadata only | Block Diagram | PDF 133 KB | |
| SCH Metadata only | Schematics | PDF 147.9 KB | |
| OP Metadata only | Operational Description | PDF 469.9 KB |
Application Information
| Application ID | 1NWTsuaaY5FlBy5M5CHgEw== |
|---|---|
| Final Action Date | 2025-08-14 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0026354019 |
| Model | NBC90 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | ANC TWS Earbuds |
| Responsible Party | LING YAN, engineer assistant, eng@ko-star.net , 0755-28371433-114 |
| Technical Contact | KO-STAR DEVELOPMENT CO., LTD, eng@ko-star.net |
| Test Firm | Doris Li, Attestation of Global Compliance (Shenzhen) Co., L, dorisli@agc-cert.com  , +86-755-25234088 |
| TCB Email | certification@micomlabs.com  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | Yes |
| Grant Deferral | No |
| Modular Equipment | Does not apply |
| Composite Device | No |
| Composite Part | No |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
| Grant Comments | Output power listed is conducted power. |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| 1NWTsuaaY5FlBy5M5CHgEw== | 2025-08-14 | Original Equipment |
Equipment Authorization
| Frequency | Output |
|---|---|
| 2402-2480 MHz | 0.0011000 |
Grants
TCB Grant - Application 1NWTsuaaY5FlBy5M5CHgEw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
MiCOM Labs 575 Boulder Court Pleasanton, CA 94566 |
Date of Grant: 08/14/2025 Application Dated: 08/14/2025 |
| KO-STAR DEVELOPMENT CO.,LTD |
| No.3, Yicun Industrial Area, Xikeng, |
| Henggang Town, Longgang Distict, Shenzhen, China |
| SHENZHEN, China |
| Attention: LING YAN , engineer assistant |
| 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: | 2ALHZNBC90 |
| Name of Grantee: | KO-STAR DEVELOPMENT CO.,LTD |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | ANC TWS Earbuds |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0011 |
| Output power listed is conducted power. |