ZKST21 Bluetooth Audio Power Amplifier... - FCC ID 2A4WD-ZK-ST21
FCC ID 2A4WD-ZK-ST21
Appendix RF Test Data for BT
Bluetooth Audio Power Amplifier
Document preview loads when visible.
Document Details
| FCC ID | 2A4WD-ZK-ST21 |
|---|---|
| Document ID | 9232191 |
| Document Type | Test Report |
| Description | Appendix RF Test Data for BT |
| Applicant | Qingdao Wuzhi Intelligent Technology Co., Ltd. |
| Equipment Class | Bluetooth Audio Power Amplifier |
| Product Code | ZKST21 |
| Application ID | 89/X5t3mRJHogM3xaSuxjw== |
| Application Purpose | Original Equipment |
| Application Date | 2026-04-21 |
| Frequency Range | 2402-2480 MHz |
| FRN | 0032008856 |
| Test Firm | Shenzhen HTT Technology Co.,Ltd. |
| Certified By | CHENCHEN ZHANG General manager |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | No |
| Modular Equipment | Does not apply |
| Composite Device | No |
| Submitted | 2026-04-21 |
| Available | 2026-04-21 |
| Created | 2026-04-21 |
| Modified | 2026-04-21 |
| Pages | 37 |
| File Type | Adobe Acrobat PDF |
| File Size | 3315109 |
| File SHA-256 | 11ef467eebc87eb809971b4fbc0410b817f4636a53c155753e93073299f044da |
| PDF Metadata Producer | Microsoft® Word 2016 Microsoft® Word 2016 |
| FCC.gov Sources | FCC.gov 9232191 |
Related FCC Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2026-04-21 | PDF 1.1 MB |
| appendix II EUT Internal photo | Internal Photos | 2026-04-21 | PDF 604.2 KB |
| appendix II EUT External photo | External Photos | 2026-04-21 | PDF 942.1 KB |
| Label and Location | ID Label/Location Info | 2026-04-21 | PDF 239.8 KB |
| appendix I EUT Test Setup photo | Test Setup Photos | 2026-04-21 | PDF 412.1 KB |
| Antenna Specification | Test Report | 2026-04-21 | PDF 1.3 MB |
| Appendix RF Test Data for BT | Test Report | 2026-04-21 | PDF 3.2 MB |
| HTT202604437F01_Test Report-BT FCC | Test Report | 2026-04-21 | PDF 2.2 MB |
| USA-CoveredEquipmentLetter-Combined_V1.1 | Attestation Statements | 2026-04-21 | PDF 133.1 KB |
| USA-LocalRepLetter_V1.1 - 2A4WD-ZK-ST21 | Attestation Statements | 2026-04-21 | PDF 514.9 KB |
| Declaration Letter of Model Difference | Cover Letter(s) | 2026-04-21 | PDF 91 KB |
| USA-ConfidentialityRequestLetter_V0.1 | Cover Letter(s) | 2026-04-21 | PDF 118.8 KB |
| HTT202604437F02_RF Exposure-MPE | RF Exposure Info | 2026-04-21 | PDF 459.8 KB |
| Block diagram Metadata only | Block Diagram | PDF 83 KB | |
| schematic Metadata only | Schematics | PDF 206.3 KB | |
| Operation Description Metadata only | Operational Description | PDF 135.1 KB | |
| USA-DueDigilenceLetter_V0.1 Metadata only | Operational Description | PDF 157.5 KB |