Here’s what Fender say:
Born in Corona, California, the American Performer Stratocaster HSS delivers the exceptional tone and feel you expect from an authentic Fender—with new enhancements, like the Double Tap™ humbucking pickup, that make it even more inspiring to play. Combining vintage style with a modern 18:1 gear ratio, the ClassicGear tuning machines have smooth action and make it easier to fine-tune your instrument. Jumbo frets make it easier to achieve wide, expressive bends that add your personal touch to your music. The push-pull pot controls the unique Double Tap™ humbucking pickup, unlocking single-coil tones without any volume loss, making it easy to adjust your sound mid-performance. Featuring a “Modern C”-shaped profile that works well with almost any playing style, the neck also hosts a satin finish on the back, giving it a smooth, fast playing feel. This uniquely Fender tone system lets you cut treble without losing gain or “muddying” your sound, preserving your carefully shaped tone.