Leveraging years of experience blending innovative electronic technologies with rugged optical systems, SIG SAUER's new ECHO thermal category provides a comprehensive spectrum of performance-driven optics to deliver the innovation and quality that has become synonymous with the SIG SAUER name. The ECHO SV Thermal Sight streamlines the shooting process, eliminating the need for additional devices, charts, and formulas — improving your performance with startling precision. Switch between profiles seamlessly, while accessing all the information you need with an integrated 1000yd laser rangerfinder and onboard environmental sensors. The ECHO SV Sight provides you with leading-edge capabilities, enabling you to surpass limitations and truly see all of your environment. Specifications for SIG SAUER ECHO SV50-LRF 2-16X50mm Therma Sight: Manufacturer: SIG SAUER Color: Black Magnification: 2 x Objective Lens Diameter: 50 mm LWIR 640x512 VGA 12um 50Hz thermal core with ?20mK sensitivity Record still photos and video with audio BDX 2.0 enabled, including Applied Ballistics Ultralight with complete AB bullet database, full on-board environmental sensor suite, and live video streaming Integrated 1000y laser rangefinder Rechargeable and removeable 18650 lithium-ion batteries with 11-hour runtime on a single charge Configure settings and download media with the BDX App Cantilevered picatinny rail mount SIG SAUER Infinite Guarantee unlimited lifetime warranty Package Contents: SIG SAUER ECHO SV50-LRF 2-16X50mm Therma Sight