"PORTABLE LOW FREQUENCY INSTRUMENT FOR DETECTING DELAMINATION, VOIDS, AND DISBONDS IN METAL AND NON METAL HONEYCOMB AND LAMINATED STRUCTURES, THIS ITEM IS BATTERY POWERED AND HAS SELF RECHARGING CAPABILITY, PHYSICAL CHARACTERISTICS; LENGHT 26 INCHES, WIDTH 18 INCHES, HEIGHT 12 INCHES, WEIGHT 20 POUNDS, CUBE, 3.25 CUBIC FEET"