THE A-49'S KEYS HAVE A ROUNDED SHAPE FOR BETTER REACTION TO THE PLAYER'S TOUCH AND MORE COMFORTABLE GLISSANDI. OTHER ENHANCEMENTS HAVE BEEN MADE TO REDUCE THE ALREADY LOW MECHANICAL NOISE AND ELIMINATE VERTICAL SHAKE. ALL OF THESE FEATURES ADD UP TO A KEYBOARD THAT EVEN THE MOST DISCERNING PROS WILL APPRECIATE. ADD COLOR TO YOUR SOUND AND EXCITEMENT TO YOUR PERFORMANCE BY WAVING YOUR HANDS OVER THE INVISIBLE D-BEAM. THE A-49 CAN ASSIGN ALL ITS CONTROLLERS AUTOMATICALLY FOR FULLY UTILIZING AN EXTERNAL SUPERNATURAL SOUND MODULE SUCH AS THE INTEGRA-7. IT'S ALSO A GREAT SECOND KEYBOARD FOR CONTROLLING SYNTHESIZERS THAT HAVE ONBOARD SUPERNATURAL SOUNDS, SUCH AS THE JUPITER-80 AND JUPITER-50. 49 FULL-SIZE KEYS WITH VELOCITY SENSITIVITY LIGHTWEIGHT AND COMPACT EASY TO USE TWO KNOBS, TWO SWITCHES, AND D-BEAM CONTROLLER USB BUS POWERED; NO AC ADAPTER REQUIRED PEARL WHITE AND BLACK FINISHES