Beyond Silence Digital Piano
In addition to the silent piano concept of the digital music device for the hearing impaired, especially children. It will be very difficult to understand the idea of hearing-impaired, listening to music. This concept also helps children to play piano with feel the vibration waveform and a song for each of the resonance board. Has been designed from the bottom behind the concept of a silent digital piano with the diaphragm to create strong waves and vibrations of the music for the Deaf others feel on the ground.
Just check it out Start from $0.01 for real.