From Fender:

“The American Professional II Stratocaster draws from more than sixty years of innovation, inspiration and evolution to meet the demands of todays working player.

Our popular Deep C neck now sports smooth rolled fingerboard edges, a Super-Natural satin finish and a newly sculpted neck heel for a supremely comfortable feel and easy access to the upper register. New V-Mod II Stratocaster single-coil pickups are more articulate than ever while retaining bell-like chime and warmth. An upgraded 2-point tremolo with a cold-rolled steel block increases sustain, clarity and high-end sparkle.

The American Pro II Stratocaster delivers instant familiarity and sonic versatility youll feel and hear right away, with broad ranging improvements that add up to nothing less than a new standard for professional instruments.”