Can I use
?

Speech Recognition API

- UNOFF

Method to provide speech input in a web browser.

Chrome

  1. ❌ 4 - 24: Not supported
  2. ◐ 25 - 145: Partial support
  3. ◐ 146: Partial support
  4. ◐ 147 - 149: Partial support

Edge

  1. ❌ 12 - 18: Not supported
  2. ❌ 79 - 144: Not supported
  3. ❌ 145: Not supported

Safari

  1. ❌ 3.1 - 14: Not supported
  2. ◐ 14.1 - 26.2: Partial support
  3. ◐ 26.3: Partial support
  4. ◐ 26.4 - TP: Partial support

Firefox

  1. ❌ 2 - 21: Not supported
  2. ❌ 22 - 147: Disabled by default
  3. ❌ 148: Disabled by default
  4. ❌ 149 - 151: Disabled by default

Opera

  1. ❌ 9 - 26: Not supported
  2. ❌ 27 - 126: Not supported
  3. ❌ 127: Not supported

IE

  1. ❌ 5.5 - 10: Not supported
  2. ❌ 11: Not supported

Chrome for Android

  1. ◐ 145: Partial support

Safari on iOS

  1. ❌ 3.2 - 14.4: Not supported
  2. ◐ 14.5 - 26.2: Partial support
  3. ◐ 26.3: Partial support
  4. ◐ 26.4: Partial support

Samsung Internet

  1. ◐ 4 - 28: Partial support
  2. ◐ 29: Partial support

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 12.1: Not supported
  2. ◐ 80: Partial support

UC Browser for Android

  1. ◐ 15.5: Partial support

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ❌ 145: Not supported

Firefox for Android

  1. ❌ 147: Not supported

QQ Browser

  1. ◐ 14.9: Partial support

Baidu Browser

  1. ◐ 13.52: Partial support

KaiOS Browser

  1. ❌ 2.5: Disabled by default
  2. ❌ 3: Disabled by default
Resources:
Chromium bug to unprefix the Speech Recognition API
HTML5Rocks article
Demo
SitePoint article
Advanced demo and resource