- LAVA Music ME 4 Carbon 36" Space Bag SPGR; Compact Acoustic-Electric Guitar, the one-piece injection moulded AirSonic Carbon Fiber construction improves physical conductivity resulting in a fuller Tone and longer Sustain, the instrument can handle temperatures between -20 to 90 degrees Celsius and humidity from 10% to 90%, the FreeBoost Technology uses the back of the LAVA ME guitar as a speaker, you can play with Reverb, Delay, Chorus Effects without an Amp; HILAVA 2.0 with a new look and feel; features include Learn App, Create App, Effects App, LiveDrums App & Community sharing; Top: Carbon Fibre Composite; Back & Sides: Carbon Fibre Composite; Neck: Carbon Fibre Composite; Fingerboard: HPL; 18 Frets; Nut Width: 42,9 mm (1,69"); Scale: 597 mm (23,5"); Pickup: Hilava 2.0 System; Pre-Amp: Hilava 2.0 System; Incl. Space Gig Bag; Colour: Space Grey