`maxConcurrentConnections` is a static variable shared between each `Transport` instance. So if you have the following code:

```javascript
$('.typeahead-one').typeahead({
  maxConcurrentConnections: 10
});

$('.typeahead-one').typeahead({
  maxConcurrentConnections: 4
});
```

The final value for `maxConcurrentConnections` should be `4`.