The boffins at Double Acoustics have joined forces with LAVA Music to develop the L2 Mini Preamp that comes discreetly integrated into the body of this concert ukulele. Of course, this gives the instrument its pure amplified sound, but also provides built-in effects that can be used to drench the sound in reverb, delay, or chorus, whether you've plugged it in or not! Simply charge up the preamp using the included USB cable and you get fully-effected acoustic sound, as well as amplified. Other more practical (but just as important) details include the light fretboard radius, which only adds to the masses of playing comfort that's already on offer. Riches Up Your Tone: We invented a new way to let the structure to grew by itself. It uses mechanical simulation and algorithm to create a pattern has up to 142 units bionic structure. It also specifically riches up the bass of the instrument, and moves the soundboard in a more organic way. Play with Effects without Plugging In: The FreeBoost technology that lets you change the sound with one finger. The L2 mini developed by LAVA & Double acoustics. It enables you to play with superior sound quality as well the effects like Reverb, Delay & Chorus with or without plugging in. As well the internal mic to receive both a more natural sound and percussive playing. Works on Different Conditions: With our patent pending carbon fiber composited AirSonic, you could now bring your LAVA U to anywhere from desert to Iceland. It’s well adapted from Temperature -4°F to 140°F, Humidity 10% to 90%. Enjoyable Playing Experience: We refined the manufacturing detail of both the neck and fretboard. Every fretboard is CNC machined with a comfortable curve. We’ve also built in an ultra stiff carbon fiber rod inside the neck to improve the stability and sound. Space Case: Specifically designed for LAVA U. Combination of elegant, simplicity and the space-age inspiration. Made with a tough special material and luxurious mould. No compromise on its design, material and craftsmanship.