Vortex Razor HD 4000 GB Laser RangefinderPremium long-range rangefinder with GeoBallistics® ballistic solver built in, designed for precision shooting and hunting.• Maximum reflective range: up to 4,000 yards• Integrated GeoBallistics® solver• Bluetooth connectivity with compatible devices• Provides ballistic corrections for long-range shooting• High-quality HD optical system• Multiple ranging/target modes• Compact, rugged & weather-resistant• Ideal for precision rifle, competition & hunting