FCC ID 2BSN4-LGFRAME1
Hearing glasses with Bluetooth Low Energy
by Legato Audio, Inc.
Grantee Code: 2BSN4 Product Code: LGFRAME1
Latest application date: 2025-12-02
FCC ID Device Details
| FCC ID | 2BSN4-LGFRAME1 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BSN4 |
| Product Code | LGFRAME1 |
| Applicant Business | Legato Audio, Inc. 🇺🇸 |
| Related Domains |  legatohearing.com |
| Equipment Class | Hearing glasses with Bluetooth Low Energy |
| Test Firm | UL International-Singapore Pte Ltd |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-12-02 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Legato Frames OTC hearing aid - Owner Guide - V1.6 | Users Manual | 2026-05-31 | PDF 1.3 MB |
| 4791940437-FCC2 Appendix II Internal Photographs_R1 | Internal Photos | 2026-05-31 | PDF 2.5 MB |
| 4791940437-FCC2 Appendix I External Photographs | External Photos | 2026-05-31 | PDF 1.1 MB |
| Label and Label Location_Legato-Frame S1_GFX_DVT V2 | ID Label/Location Info | 2025-12-02 | PDF 831.7 KB |
| 4791940437-FCC2 Appendix III Test Setup Photographs_R1 | Test Setup Photos | 2026-05-31 | PDF 1.3 MB |
| 2025_10_21_Ludwig hinge antenna test report | Test Report | 2025-12-02 | PDF 1.5 MB |
| 4791940437-FCC2_FCC Part15C_BLE Test Report_R1_Part1 | Test Report | 2025-12-02 | PDF 4.1 MB |
| 4791940437-FCC2_FCC Part15C_BLE Test Report_R1_Part2 | Test Report | 2025-12-02 | PDF 4.7 MB |
| 4791940437-FCC2_FCC Part15C_BLE Test Report_R1_Part3 | Test Report | 2025-12-02 | PDF 3.7 MB |
| Agent Designation - Frame - Signed | Attestation Statements | 2025-12-02 | PDF 3 MB |
| FCC 2.911[d][5] Attestation - Frame - Signed | Attestation Statements | 2025-12-02 | PDF 1.7 MB |
| Legato Authorization Letter | Cover Letter(s) | 2025-12-02 | PDF 3.2 MB |
| Long Term Confidentiality - Frames - Signed | Cover Letter(s) | 2025-12-02 | PDF 2.1 MB |
| Short Term Confidentiality - Frames - Signed | Cover Letter(s) | 2025-12-02 | PDF 1.8 MB |
| RF Exposure Info-V04 | RF Exposure Info | 2025-12-02 | PDF 236.2 KB |
| Glasses_Left_Temple_Block_Diagram_R1 Metadata only | Block Diagram | PDF 79.6 KB | |
| Glasses_Right_Temple_Block_Diagram_R1 Metadata only | Block Diagram | PDF 82.3 KB | |
| 20-00001-02-01-02_Schematics_Frames Metadata only | Schematics | PDF 1.3 MB | |
| 20-00002-02-01-02_Schematics_Frames Metadata only | Schematics | PDF 194.8 KB | |
| 20-00003-02-02-02_Schematics_Frames Metadata only | Schematics | PDF 22.4 KB | |
| 20-00011-02-01-02_Schematics_Frames Metadata only | Schematics | PDF 1.3 MB | |
| 20-00012-02-01-02_Schematics_Frames Metadata only | Schematics | PDF 178.7 KB | |
| 20-00013-02-02-02_Schematics_Frames Metadata only | Schematics | PDF 22.4 KB | |
| Operation Description_Legato Frames Hearing Glasses V2 Metadata only | Operational Description | PDF 196.4 KB | |
| legato_software_bom_2025-09-26 Metadata only | Operational Description | PDF 28.8 KB |
Application Information
| Application ID | FGEBEgC5FZeLxPLeJEbESQ== |
|---|---|
| Final Action Date | 2025-12-02 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0037403060 |
| Model | LGFRAME1 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Hearing glasses with Bluetooth Low Energy |
| Responsible Party | Dallas Tharrett, dallas@legatohearing.com , 5088460729 |
| Technical Contact | Denny Huang, UL International Singapore Pte Ltd, Denny.Huang@ul.com  , 07683381 |
| Test Firm | Wilson Wong, UL International-Singapore Pte Ltd, wilson.wong@ul.com , 65-68764682 |
| TCB Email | LST.FRE.CertNotice@ul.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 | 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 |
|---|---|---|
| FGEBEgC5FZeLxPLeJEbESQ== | 2025-12-02 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.0008 | 15C |
Grants
TCB Grant - Application FGEBEgC5FZeLxPLeJEbESQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
UL Verification Services Inc. 47173 Benicia Street Fremont, CA 94538 |
Date of Grant: 12/02/2025 Application Dated: 12/02/2025 |
| Legato Audio, Inc. |
| 40 Barnabas Road |
| Falmouth, MA 02540 |
| Attention: Dallas Tharrett , |
| 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: | 2BSN4-LGFRAME1 |
| Name of Grantee: | Legato Audio, Inc. |
| Equipment Class: | Digital Transmission System |
| Notes: | Hearing glasses with Bluetooth Low Energy |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0008 |
| Output power listed is conducted. |