A solid-body electric ukulele produces very little sound acoustically, requiring an amplifier to be heard from more than a few feet away.
An electro-acoustic ukulele is a standard acoustic instrument to which a passive pickup has been added, a method similar to that used for an acoustic-electric guitar.
The acoustic and electric tone qualities will often differ between electric ukuleles, with some electro-acoustic ukuleles being built with the primary aim of producing quality sound when amplified rather than a consistent acoustic sound.
It has four strings raised above the neck, which are not pressed down onto a fretboard, but are played with a steel slide.
Similar instruments have been built by custom instrument makers, but the only production manufacturer was Jupiter Creek Music (Australia) before they closed their business in October 2012.