AngularJS - when checkbox is checked i want to print what i've checked

I need help with: AngularJS - when checkbox is checked i want to print what i've checked.

Here is the preview. I want to sum those prices when i click on each of them.

Check the jsfiddle

http://jsfiddle.net/HDbBJ/

How about this

The main idea is use ng-click to catch which one is checked and sum it up in the mainctrl $scope

app.controller('MainCtrl', function($scope) {
  $scope.sum = 0;
  $scope.Selected = function (val,smartphone){
    if(val){      
      $scope.sum += parseInt(smartphone.price,10);
    }else{
      $scope.sum -= parseInt(smartphone.price,10);
    }

  };
});