The balance charger that is included and what you received is what you want....

Most RC'rs have access to 12v supply voltages from their car, or other sources, such as starter batteries etc.

The RC clips or bananna plugs permit you to charge the plane at the field.

What you are asking about is A TRANSFORMER to give you 12v DC from your AC outlets.

Most RC novices tend to think the same as you until they purchase their first LiPo charger and then are shocked to discover that most of the better chargers also come set up only for 12 volts.

Transformers are cheap items ( radio shack has them ) available for 12.00 or so for an 800mAh or so transformer which you can use.

Better that they include an intelligent balance charger w/o a transformer than a dumb non-balance charger with a transformer.

Most of the HC and Exceed planes ( with some exceptions ) do not include the transformer.