Rockboard MOD 4, Wireless System (with XVive U2 transmitter) Manufacturer's Description: The RockBoard MOD 4 - All-in-One Wireless System Receiver + Patchbay for Pedalboards offers an easy-to-use wireless connection between your instrument and your pedalboard, featuring digital wireless technology that... MSRP: Was: Now: $299.90 Add to Cart