I have a wireless microdig by infusionsystems, its the wireless icubex, and its awesome, really great for dancers, 8 inputs and functions on bluetooth, and has great setup application to tweak the values just right, then it sends out midi to whatever you want, couldn’t be easier to use.
I would actually recommend the Arduino or the Make Controller. Steeper learning curve, but cheaper and ultimately, much more flexible. Not exactly plug and play, but there are Max externals for both. http://www.makingthings.com/