From Fender:

The American Professional II Stratocaster HSS 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, while the Double Tap bridge pickup delivers punchy humbucking tones as well as calibrated single-coil sounds at the push of a button. An upgraded 2-point tremolo with a cold-rolled steel block increases sustain, clarity and high-end sparkle.

The American Pro II Stratocaster HSS 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.