Mi-Si ACOUS-TRIO Undersaddle LR Baggs Guitar Pickup System Software 2 metal shafts support the

2 metal shafts support the fader knobs

USB storage device or computer

Connection 1-4: XLR Female

Driver Units 40 mm dome type

you should unplug your device to prevent any damage

Mi-Si ACOUS-TRIO Undersaddle LR Baggs Guitar Pickup System Software 2 metal shafts support theAcoustic Trio Simple Jack & power charger with L. R. Baggs acoustic guitar pickup The Mi Si Acoustic Trio System features an active, battery free preamp designed specifically to work with the L. R. Baggs undersaddle Element acoustic guitar 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