The MX88 features a Graded Hammer Standard (GHS) weighted action. GHS weighted action has a heavier response in the low keys and a lighter response in the high keys. This provides realistic acoustic piano touch and response. Special matte black key tops absorb moisture and remain tactile after extended use, perfect for long practice or performance sessions. The Full Concert Grand Piano in the MX88 comes directly from the MOTIF series. With a powerful focused low end, highly-detailed midrange and pristine high end, the Full Concert Grand Piano is perfect for any style of music in any environment. Don’t sacrifice sound for portability - get the MX88! The MX88 is a lightweight and portable music synthesizer with 88 full-sized, touch-sensitive keys and over 1,000 Voices from the legendary MOTIF. Uniting the GHS action with the Full Concert Grand Piano Voice is an optimized touch curve. This curve provides the player with a high level of expression, realism and dynamics. This is the only instrument of its kind, designed exclusively by Yamaha. 

Features:

Voices: preset- 1,106 normal voices, 61 drum kits
Effects: reverb, chorus, insertion effect, master EQ
Tempo (BPM): 5-300
Songs: 27 demo songs
Patterns: 28 patterns
Arpeggio: 999 types
Power Supply: 9 watts
Accessories: AC adaptor
Controllers: pitch bend wheel, modulation wheel
Connectors: standard phone jack, foot controller, sustain, midi (in/out), USB, aux in