Dual piezo-vibration sensors and gyro position sensors, microprocessor-linked to direct drive motors, help you lock on to subjects - even if you and the subject are in motion - for true digital stabilization. Phase-coated roof prisms for sharper, more highly defined images with greater contrast. 100% waterproof, fog-proof, dry nitrogen purged. 100% EBC coatings for the truest colors, brightest images and freedom from glare, flare and ghosting, and automatic sensor/response stabilizing system minimizes power consumption, extends component operating life. Waterproof/pressure proof case and floatation neckstrap included.