Yamaha TRBX 504 TBN, bass guitar, 4 string, mahogany body, 5 stripe maple/mahogany bolt-on neck, rosewood fretboard, 864mm scale length (long scale), 24 frets, 38mm nut width, 2 Yamaha Alnico humbucker pickups, 3 way electronic with controls for volume, balance, bass, middle, treble and active/passive switch, Yamaha black chrome hardware, color: translucent brown.