The Mi-Si Acoustic Trio Uke system features an active, battery-free preamp designed specifically to work with the L.R. Baggs ukulele pickup.
The preamp for this system uses Mi-Si’s custom piezo linearization scheme – allowing for the most truthful and accurate sound from the pickup.
All you have to do is power up for 60 seconds using the Mi-Si Power Charger, providing you with up to 16 hours of performance time.