The Freedom One is an excellent wireless system on a budget. It consists of two elements, a pedal tuner (roughly the size of a Boss tuner) that mutes the signal and a plastic wireless unit that has a 1/4 jack that you plug into your guitar.
All Intellitouch 2 Models
This tuner is pretty easy to use. All you have to do is clip it on your headstock, turn it on, and hopefully tune it. It's pretty simple, but it's obviously targeted to newer guitarists.