---
title: "M400 & M4000 Downloads"
slug: "m400-m4000-downloads-1"
updated: 2025-04-04T22:12:17Z
published: 2025-04-04T22:12:17Z
canonical: "support.vuzix.com/m400-m4000-downloads-1"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.vuzix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# M400 & M4000 Downloads

**Speech Recognition Service Java Docs**

**Version 1.91**

[Documentation for the Vuzix Speech Recognition Service classes](https://vuzix-website.s3.amazonaws.com/files/Content/code-samples/M400+Downloads/sdk-speechrecognitionservice-javadoc-1.95.zip)

---

**Barcode Scanner Java Docs**

**Version 2.0**

[Documentation for the Vuzix Barcode Scanner classes](https://vuzix-website.s3.amazonaws.com/files/Content/code-samples/M400+Downloads/com.vuzix.sdk.barcode_doc.zip)