The 25" scale length gives the fretless M-Bass25FL greater unplugged volume & full tone. Fretless fingerboard has fret lines for reference.  Equipped with special Aquila strings for standard EADG bass tuning and a tone that’s similar to an upright bass. Amplification is easy thanks to a passive saddle transducer and a side-mounted control panel with chromatic tuner, 2-band EQ, and volume control. A great acoustic bass for travel or for fitting into cramped performance venues