The B-Band U1.0-24R is a complete active pickup system for ukulele, and includes the U1.0 all-in-one preamp with integrated battery holder and jack, as well as the UST 24R Undersaddle Transducer (2.4mm).
The U1.0 is a single input ukulele preamp built into an all-in-one matchbox size assembly with preamp, output jack and a disc battery holder included that is externally accessible. The U1.0 preamp features a one-piece, drop-in format for easy installation, and is powered by two 3-volt, coin-type batteries (included). The preamp includes B-Band's exclusive HZZLess low-noise / high output circuitry for best performance on stage or in the studio. The included UST 24R EmFit® ultra-thin pickup sensor is 2.4mm wide (about 3/32") and will fit most ukuleles.