how watch to change angularjs model which checkbox changed from jquery

I use http://ift.tt/1GoU5I5 for input style. I set ng-model="c.model.acept" if i click on "styled checkbox" then input gets to property "checked", but angular model have old value.

I tried triggered change event - no result. If trigger click event then checkbox changed twice (1 from click, 2 from triggered click event)

How fix it?