This waterproof binocular makes the target easier to acquire and track even if it is moving at a high rate of speed, because of the prism, installed on a freely rotating gimbaled frame equipped with a highspeed gyro motor. The observer will have little problem keeping the target centered in the field of view. Simply switch the power on and wait a moment until the gyro motor reaches operating speed. Focusing is achieved by adjusting each eyepiece. Foldback rubber eye cups permit eyeglass wearers to use the this gyro-stabilized binoculars and still see a full field of view. To allow for individual differences in the distance between the eyes, an interpupillary control is provided. Finally simply lift the locking lever to free the gimbaled erecting prism assembly. It can be operated with either 4AA batteries or 1 lithium battery, and also operated on 12-32 volt DC power sources when used with the supplied DC regulator, where auxiliary power is available.