G30/G31/G38 (2016–present)

Wirelessly connect and control your JB4 with your phone or tablet!  The JB4 Connect Kit (Rev 3.7) allows your Bluetooth 4.0 compatible iOS and Andr...

Wirelessly connect and control your JB4 with your phone! For use with older JB4 tuners with the square case.  The JB4 Connect Kit (Rev 3.7) allows...

Rugged, Fortified JB4 Protection Our most protective case in the JB4 line-up. The sleek, stylish JB4 billet aluminum enclosure withstands drops, sh...