Best ways to make speakers "wireless"?

[Da Animal]

So I know this has been done... I know at least for sure that BillESC has done it with pics on the old board. But what is the best way to take and make two powered speakers wireless for audio signal? Playing in Lambeau Field but can't use my usually stack due to space issues with this event so I need to create some "satelite" speakers. I am thinking guitar packs but looking for other people's thoughts on this.

Thank you all in advance!

[disbjohn]

Guitar packs like the Line6 ones would work. I use a digital wireless lapel mic body pack with receiver. For the most flexible, you can use a sennheiser EW122PG3 wireless setup that includes dual battery packs.
http://www.agiprodj.com/sennheiser-wireless-remote-speaker-system-1.html
or
http://www.amazon.com/dp/B002N3GZ88/ref=asc_df_B002N3GZ881964456?smid=ATVPDKIKX0DER&tag=hyprod-20&linkCode=asn&creative=395093&creativeASIN=B002N3GZ88&hvpos=1o4&hvexid=&hvnetw=g&hvrand=15305485451091146154&hvpone=&hvptwo=&hvqmt=

[Da Animal]

Thanks! Kinda what I was leaning towards... just was looking for other that might have done it and what they used.