4x20mm monocular with SpectraCoat anti-reflection coatings for superior light transmission and optical clarity Revolutionary Lightwave DSP Technology for the fastest and longest distance rangefinder engine HyperScan provides 4 range updates per second in scan mode while RangeLock reports the last range result when ranging distance targets Sleek design for one handed operation and lanyard attachment points Features line of sight or angle modified range. Units in yards or meters to tenth Y/M resolution and Best or Last target mode. High transmittance LCD display Compact lightweight polymer housing with diopter adjustment Simplified user interface with Range and Mode buttons only Infinite Guarantee and Electronics & Tritium Limited Warranty