Callaway RAZR 6x Laser Range Finder: * Shock resistant and fog-proof laser range finder * Waterproof: filled with nitrogen gas and sealed with O-rings (except battery chamber) * Multi-coated optics with improved light transmittance * Focusing diopter by simple twisting action on eyepiece * Reticle allows users to know ranging in progress * Capable of distancing different targets in succession for up to 8 seconds * Compact, lightweight design (10 percent reduction in size) * Carabiner built-in for ease of access with all walking bags and tour bags * Includes travel pouch for shipping protection and lens care * 600 yds measurement range * .1 yd increment readings * 6x monocular * Magnification with focusing eyepiece * Active Brightness Control * Selectable backlighting for low light conditions * Dimensions: 4.4"L x 1.6"W x 2.8"H * 5.8 oz/165 g (excluding battery) * Fast, simple 1-touch measurements * Distancing different targets in succession up to 8 seconds Nikon"s First Target Priority Mode * Ranges Multiple objects in a field of view, ranging the closest, smallest object like the pin * Requires 3V CR2 lithium battery (included)