There are a few main differences between our standard and deluxe ukuleles: Our standard ukulele will be acoustic, while our deluxe will have a Fishman Kula pickup installed. This is an active preamp pickup with a piezo system. It also has an onboard tuner and some EQ options! The standard ukulele will have our KLOS machine heads, while the deluxe will have upgraded Graphtech Ratio tuners. The hardware will also be upgraded from the standard Nubone nut and saddle to the Graphtech TUSQ saddle and nut. The strings will also be upgraded from the D’addario EJ65T clear nylons, to D’addario EJ99T fluorocarbon strings.