Add custom widget to Django's Wagtail framework

Wagtail is a django framework. It has property called field panels that allows you to create customized fields to insert date, image and text: What I want to do is to create a custom filed to insert a javascript voice recorder [1] as a field panel to be able to record voice directly from the admin page The date chooser is probably the simplest example of a widget with Javascript code attached: [login to view URL] 1. requested recorder [login to view URL]