FCC ID 2BUP4-CERAMICSULTRA
wireless headphones
by Chengdu ROSESELSA Technology Co., Ltd.
Grantee Code: 2BUP4 Product Code: CERAMICSULTRA
Latest application date: 2026-08-12
FCC ID Device Details
| FCC ID | 2BUP4-CERAMICSULTRA |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BUP4 |
| Product Code | CERAMICSULTRA |
| Applicant Business | Chengdu ROSESELSA Technology Co., Ltd. 🇨🇳 |
| Related Domains |  roseselsa.com  hyunturlee-commerce.com |
| Equipment Class | wireless headphones |
| Test Firm | Shenzhen DL Testing Technology Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-08-12 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2026-08-12 | PDF 1.5 MB |
| Internal photos | Internal Photos | 2026-08-12 | PDF 772.7 KB |
| External photos | External Photos | 2026-08-12 | PDF 760 KB |
| ID label and location | ID Label/Location Info | 2026-08-12 | PDF 124.2 KB |
| Test Setup photo | Test Setup Photos | 2026-08-12 | PDF 452.1 KB |
| Antenna Specification | Test Report | 2026-08-12 | PDF 3.1 MB |
| Test report | Test Report | 2026-08-12 | PDF 1.9 MB |
| Test report DATA | Test Report | 2026-08-12 | PDF 4 MB |
| Attestation Statement | Attestation Statements | 2026-08-12 | PDF 426.3 KB |
| Kaspersky Statement | Attestation Statements | 2026-08-12 | PDF 667.5 KB |
| Product similarity Declaration | Attestation Statements | 2026-08-12 | PDF 137.2 KB |
| TCB_validation_US_agent_process | Attestation Statements | 2026-08-12 | PDF 1.4 MB |
| Us_Agent | Attestation Statements | 2026-08-12 | PDF 153.9 KB |
| Confidentiality | Cover Letter(s) | 2026-08-12 | PDF 535.4 KB |
| Letter Authorization | Cover Letter(s) | 2026-08-12 | PDF 142.3 KB |
| MPE | RF Exposure Info | 2026-08-12 | PDF 163.2 KB |
| Block Diagram Metadata only | Block Diagram | PDF 52.3 KB | |
| Schematics Metadata only | Schematics | PDF 392.9 KB | |
| Operational Description Metadata only | Operational Description | PDF 72.2 KB |
Application Information
| Application ID | X5fJAyxNEEa2rxEqhYXZ/A== |
|---|---|
| Final Action Date | 2026-08-12 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0037952363 |
| Model | CERAMICSULTRA |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | wireless headphones |
| Responsible Party | Henry Chan, henry@roseselsa.com , 13760447068 |
| Technical Contact | Jade Yang, Shenzhen DL Testing Technology Co., Ltd., Jade.yang@dl-cert.com  , 4006883552 |
| Non-Technical Contact | Jianfeng Gao, Herland International Trading Inc, jianfenggao@hyunturlee-commerce.com , 001-909-772-1888 |
| Test Firm | Jade Yang, Shenzhen DL Testing Technology Co., Ltd., Jade.yang@dl-cert.com , 400-688-3552 |
| TCB Email | elabscert@applus.com  |
| 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 | 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 |
|---|---|---|
| X5fJAyxNEEa2rxEqhYXZ/A== | 2026-08-12 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.0019 | 15C |
Grants
TCB Grant - Application X5fJAyxNEEa2rxEqhYXZ/A==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
LGAI Technological Center S.A. (APPLUS) Ronda de la Font del Carme, s/n <BR>P.O. Box 08193, Barcelona, Spain |
Date of Grant: 08/12/2026 Application Dated: 08/11/2026 |
| Chengdu ROSESELSA Technology Co., Ltd. |
| Room 302,3rd Floor,Building 4,Yingcaijiayuan, |
| No.569 East Jinfu Road,Zitong Community,Tianfu |
| Block, Wenjiang District,Chengdu,Sichuan, China, China |
| Attention: Henry Chan , |
| 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: | 2BUP4-CERAMICSULTRA |
| Name of Grantee: | Chengdu ROSESELSA Technology 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 |
| 15C | 2402.0 - 2480.0 | 0.0019 |
| Output power listed is conducted. |