title: Detect microphone is attached or not using jQuery
body: <p>I am developing a site in <strong>ASP.NET MVC 4</strong> framework and using <strong>recorder.js</strong> to record the sound. It is working fine on chrome.</p>
  
  <p>I need to identify if <strong>microphone is attached to system</strong> or not using <strong>jQuery</strong>. If microphone is not attached I need to show alert to attach microphone.</p>