"This unique instrument uses state-of-the art digital image stabilization to steady hand tremors and platform motions, giving the user steady, calm images that are bright and crisp.Why Stabilization? Because All high-power scopes and binoculars magnify not only the image, but all the motions of the user as well. Even with the steadiest of hand, the higher power scopes and binoculars magnify the slightest of movements. This movement can cause eye strain, fatigue, and reduced efficiency, even from a stable viewing platform. If you are moving in an automobile, ship, or aircraft, you will have a compounded problem.Fujinon has solves this problem (again) with the Techno-Stabi. The ""internal optics"" are isolated, using electric motors and computer sensors to provide image stabilization, so that even on a rocking ship, moving automobile, or jittering aircraft, the image delivered to the eye is rock steady. It works upside down as well as right side up, and from any angle. It is waterproof, buoyant, lightweight, and operates as a ""standard"" binocular if the power fails or is turned off. Unlike other stabilized binoculars on the market today, the Techno-Stabi effectively eliminates hand tremors from the user as well as platform vibrations, giving the user a smooth, high-power image.|Dual piezo-vibration sensors and gyro position sensors, computer linked to direct drive motors, help lock on to subjects, even if you and the subject are in motion.|Lightweight electric motors perform stabilization instantly. No time is lost waiting for a gyro to ""spool up.""|Phase-coated roof prisms for sharper, more highly defined images with greater contrast.|100% waterproof, fog-proof, dry nitrogen purged.|100% EBC coatings on every optical surface for the truest colors, brightest images, and freedom from glare, flare and ghosting.|Automatic ""sending/ response"" stabilization system minimizes power consumption, and extends component operating life.|Simple controls.|Single-point focusing.|LED indicator shows Standby/ On/ Off, and battery status.|4- AA battery power.|Operating temperature -5 to +50 deg C (23 to 122 deg F).|Optional 12-28 vdc power supply, A/C adapter kit, haze filters, polarized filters."