This is the top of the line Beltuna accordion, fully loaded with features like hand made reeds, tone chamber, amplisound chamber, and Sennheiser microphones. This instrument will offer you a variety of sounds with 4 sets of treble reeds and 5 sets of bass reeds, all hand-made. The reed configuration is LMMM. You have LM with concert tuning and 2 additional sets of clarinet reeds (M2 and M3) with musette tuning allowing for concert (dry) sounds like bassoon, clarinet, bandoneon, as well as a rich selection of musette sounds when adding M2 and M3.

Stereo Sennheiser microphones with separate volume control complement the acoustic accordion. 

Here is a summary of the features:

• Made in Italy
• Balkan Star grill with rhinestone decoration
• Excellent Hand Made Artigiana Voci Reeds
• 4 sets of treble reeds - LMMM - Select from 3 concert (dry) treble sounds and 6 musette sounds with different degree of tremolo
• DOUBLE TONE CHAMBER (CASSOTTO) - Bassoon (L) and Clarinet (M1)
• Beltuna's patented Amplisound chamber - enhances the tonal spectrum of the chambered bassoon and clarinet reeds - please, listen to the sound samples to hear the "Amplisound Effect"
  
• 41 keys, 19.25 " keyboard - wooden keys with pearl key tops - smooth edges - a delight to play
  
• 11 treble switches - Amplisoun ON, Bassoon (L), Bandoneon (LM1), Accordion (LM1M2), String (LM2M3), Master (LMMM), Musette (MMM), Vibrato (M2M3), Violin (M1M2), Clarinet (M1), and Amplisound OFF. The switches highlighted in Blue correspond to Italian musette. The switches highlighted in red give you French musette sounds. The remaining switches produce are concert sounds (no tremolo).

• Palm Master switch (LMMM)
• The first and last treble switches activate the Amplisound chamber - a total of 17 distinct treble sounds (The Vibrato switch is the only one not affected by the action of the amplisound chamber)
  
• 5 sets of bass reeds with low G configuration and Tone Chamber for deep powerful sound
• 120 pearl; bass buttons, each one is surrounded by felt for very smooth and silent action - 7 bass registers
• Deep-fold red bellows with black tape - excellent compression
  
• Backpad for bellows protection
• Excellent new Italian straps
• Amplified - Modern Technology Condenser microphones - Separate Volume controls for treble and bass
• Hard-shell case with lots of internal padding
• ~ 27 lb
• Offered with a full year warranty serviced at the Accordion Gallery in Flemington, NJ

You can hear the accordion following the links below. I suggest using headphones to fully appreciate the tonal quality of the accordion.