FCC ID 2BB8U-WS8858
Wireless Transceiver Module
by Chengdu Silent Smart Technology Co., Ltd.
Grantee Code: 2BB8U Product Code: WS8858
Latest application date: 2025-11-19
FCC ID Device Details
| FCC ID | 2BB8U-WS8858 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BB8U |
| Product Code | WS8858 |
| Applicant Business | Chengdu Silent Smart Technology Co., Ltd. 🇨🇳 |
| Equipment Class | Wireless Transceiver Module |
| Test Firm | Shenzhen LGT Test Service Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 902.2-927.8 MHz | Original Equipment | 2025-11-19 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| user manual | Users Manual | 2025-11-19 | PDF 829.3 KB |
| internal photo | Internal Photos | 2025-11-19 | PDF 278.8 KB |
| external photo | External Photos | 2025-11-19 | PDF 614.6 KB |
| label and location | ID Label/Location Info | 2025-11-19 | PDF 170.4 KB |
| test photo | Test Setup Photos | 2025-11-19 | PDF 327.1 KB |
| test report | Test Report | 2025-11-19 | PDF 1.9 MB |
| Attestation_Statements_part_2.911_d__5__i__and_2.911_d__5__ii_(7) | Attestation Statements | 2025-11-19 | PDF 281.7 KB |
| USA agent letter | Attestation Statements | 2025-11-19 | PDF 250.7 KB |
| ANT spe | Cover Letter(s) | 2025-11-19 | PDF 250.6 KB |
| Agent Authorization Letter | Cover Letter(s) | 2025-11-19 | PDF 221.6 KB |
| FCC Modular Approval Request | Cover Letter(s) | 2025-11-19 | PDF 681.3 KB |
| FCC Short & Long Term Confidentiality Request | Cover Letter(s) | 2025-11-19 | PDF 286.9 KB |
| RF Exposure Report | RF Exposure Info | 2025-11-19 | PDF 375.3 KB |
| SCH Metadata only | Schematics | PDF 405.1 KB | |
| BLOCK Metadata only | Operational Description | PDF 114.8 KB | |
| ops Metadata only | Operational Description | PDF 56.4 KB |
Application Information
| Application ID | VtpIeSJPdA24EBCwOqU3jQ== |
|---|---|
| Final Action Date | 2025-11-19 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0034052233 |
| Model | WS8858 |
| Frequency Range | 902.2-927.8 MHz |
| Equipment Class | DXX - Part 15 Low Power Communication Device Transmitter |
| Device Description | Wireless Transceiver Module |
| Responsible Party | Sheng Liguo, shengliguo777@163.com  , 18382150460 |
| Technical Contact | Chengdu Silent Smart Technology Co., Ltd., shengliguo777@163.com |
| Test Firm | Wen Wen, Shenzhen LGT Test Service Co., Ltd., qa@lgt-cert.com  , 0755-89668180 |
| TCB Email | anezam@qai.org  |
| TCB Scope | A1: Low Power Transmitters below 1 GHz (except Spread Spectrum), Unintentional Radiators, EAS (Part 11) & Consumer ISM devices |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Single Modular Approval |
| Composite Device | No |
| 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 |
|---|---|---|
| VtpIeSJPdA24EBCwOqU3jQ== | 2025-11-19 | Original Equipment |
Equipment Authorization
| Frequency | Rules |
|---|---|
| 902.2-927.8 MHz | 15C |
Grants
TCB Grant - Application VtpIeSJPdA24EBCwOqU3jQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
QAI LABORATORIES LTD 3980 North Fraser Way Burnaby, BC, V5J5K5 Canada |
Date of Grant: 11/19/2025 Application Dated: 11/19/2025 |
| Chengdu Silent Smart Technology Co., Ltd. |
| 303-7, Floor 3, Building 12, No.38, South |
| Jinke Road, Jinniu Hi-tech Industrial Park, |
| Chengdu, Sichuan, China |
| Attention: Sheng Liguo , |
| 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: | 2BB8U-WS8858 |
| Name of Grantee: | Chengdu Silent Smart Technology Co., Ltd. |
| Equipment Class: | Part 15 Low Power Communication Device Transmitter |
| Notes: | Wireless Transceiver Module |
| Modular Type: | Single Modular |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 902.2 - 927.8 |
| Single Modular Approval for mobile RF Exposure conditions. The module antenna must be installed to meet the RF exposure compliance separation distance of 20 cm from all persons and any additional testing and authorization process as required. Co-location of this module with other transmitters that operate simultaneously are required to be evaluated using the FCC multi-transmitter procedures. Approved for OEM integration only. The grantee must provide OEM integrators, or end-users if marketed directly to end-users, with installation and operating instructions for satisfying FCC multi-transmitter product guidelines. This grant is valid only when the devices sold to OEM integrators and the OEM integrators are instructed to ensure that the end-user has no manual instructions to remove or install the device. |