One device. All the range and ballistic data you need to make the shot of a lifetime, every time. For precision shooters and long-range hunters, the fully loaded Razor HD 4000 GB accelerates your speed to target, helping you range with first-shot confidence at pushbutton speed. Rugged. Reliable. Whether targeting a trophy above the treeline, across an open prairie, or ringing steel out to 4000 yards, the Razor HD 4000 GB delivers all the range, ballistic, and environmental data you need for absolute accuracy when and wherever opportunity happens. Download the GeoBallistics app here: Only download the app from Apple App Store or Google Play Store to avoid fake download links that install malware on your device. If you have already downloaded the app from a different link, please uninstall and download again. Specifications for Vortex Razor HD 4000 7x25mm GB Ballistic Laser Rangefinder: Manufacturer: Vortex Objective Lens Diameter: 25 mm Magnification: 7 x Eye Relief: 17.5 mm Field of View, Angle: 6.5 degrees Field of View, Linear: 341 ft at 1000 yds Water Resistance Level: Waterproof Maximum Range: 4000 yds Weight: 10.1 oz Width: 1.7 in Length: 4.4 in Color: Green Battery Type: CR2 Minimum Focus Distance: 5 yds Minimum Range: 5 yds Battery Quantity: 1 Finish: Magnesium Exit Pupil: 3.55 mm Diopter Adjustment Range: -2 - 2 dpt Laser Divergence: 2.1 MRAD Optical Coating: Coated Rangefinder Application: Shooting, Archery, Hunting Range Response Time: 0.25 seconds Wavelength: 905 nm Features of Vortex Razor HD 4000 7x25mm GB Ballistic Laser Rangefinder In-Display Wind/Drop Solutions. Equipped with the accurate GeoBallistics ballistics solver backed by a full up-to-date bullet database. Customize Ballistics Profiles. Customize ballistics profiles via the GeoBallistics App or use one of three preloaded profiles for popular cartridges. On-Board Environmental Sensors. On-Board compass, humidity, barometric pressure, and exposed temperature sensors for fast acclimations. Two Wind Modes. Features Full Cross Wind Mode and the Patented Wind Bearing Capture Mode. Pairs with Third-Party Devices. Pairs with Kestrel weather meter devices. HD Optical System. Optimized with select glass elements to deliver exceptional resolution, cut chromatic aberration and provide outstanding color fidelity, edge-to-edge sharpness and light transmission. XR Plus Lens Coatings. Ultimate anti-reflective coatings on all air-to-glass surfaces provide maximum light transmission for peak clarity and the pinnacle of low-light performance. Magnesium Chassis. Decreases weight and increases strength. Easy-to-Use Menu. Intuitive, easy-to-use menus feature a simple, clean illuminated display. Diopter Adjusts for differences in a user's eyes. Located on the eyepiece. Rugged Design. Built to handle tough situations. Compact and light weight. ArmorTek. Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt. Waterproof. O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments. Tripod Adaptable. Compatible with a tripod adapter, allowing use on a tripod or car window mount. Rubber Armor. Provides a secure, non-slip grip, and durable external protection. Ranging Format. Range in yards or meters. Package Contents: Vortex Razor HD 4000 7x25mm GB Ballistic Laser Rangefinder Premium Carry Case Bungee Cord Lanyard Lens Cloth Utility Clip 2mm Hex Wrench CR2 Battery The Vortex VIP warranty is about you, not us. It"s about taking care of you after the sale. VIP stands for a Very Important Promise to you, our customer. We will repair or replace your Vortex product in the event it becomes damaged or defective-at no charge to you. If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. You see, it doesn"t matter how it happened, whose fault it was, or where you purchased it. You can count on the VIP Warranty for all Vortex Optics Rifle Scopes, prism scopes, red dots, rangefinders, binoculars, spotting scopes, tripods, and monoculars. Unlimited Lifetime Warranty Fully transferable No warranty card to fill out No receipt needed to hang on to If you ever have a problem, no matter the cause, we promise to take care of you Note: The VIP Warranty does not cover loss, theft, deliberate damage or cosmetic damage that does not hinder the performance of the product.