"No Standalone lithium batteries are sold with the product". HIGH-PERFORMANCE SIGHT - The ECHO SV Sight streamlines the shooting process, eliminating the need for additional devices, charts, and formulas - improving your performance with startling precision; witch between profiles seamlessly, while accessing all the information you need with an integrated 1000yd laser rangefinder and onboard environmental sensors
HIGH DEFINITION TRANSMITTANCE - The Sig Sauer ECHO SV shooting sights incorporate advanced optical systems designed to deliver exceptional image clarity and performance; this system utilizes a combination of High Definition (ED) and High Transmittance (HT) glass, offeringAdvanced optical systems comprising both High Definition (ED) and High Transmittance (HT) glass for ultra-high resolution, optical performance and light transmission
LIGHTWAVE DSP - Lightwave DSP (Digital Signal Processing) engine leverages HyperScan - an advanced power management technique that provides the fastest refresh rate in scan mode (4 times per second) even at distances over a mile; DSP engine uses the latest generation Field Programmable Gate Array (FPGA) running sophisticated signal processing algorithms to reduce false positives while finding weak or distant targets
LOCKDOWN ZERO SYSTEM - This The LockDown Zero System is a stop-locking turret that allows a rapid return to Zero; After dialing up elevation for a shot at extended range, the LockDown Zero System eliminates worry over how far to turn the elevation dial to return adjustment to zero; turret not only stops at zero, it locks at zero
LUMATIC - The most advanced display on the market; OLED (Organic Light Emitting Diode) display has the largest dynamic range providing for high brightness in bright sunlight or snow conditions. No other display offers this adaptive ability to prevent your pupil from constricting in low-light causing you to no longer be able to see your target