Keith Smith uses PRA Wireless System exclusively. Both the transmitter and receiver is each about the size of a pack of cards and very light weight. The range of the system is huge (up to 500 feet!) and most importantly, there is no loss of tonal integrity.  PRA has a wireless system designed specifically for electric guitars and a system designed specifically for bass guitars. If you want to go wireless... PRA IS THE WAY!

For more information on PRA Wireless...    CLICK HERE