brand new in box! Fully Multi-Coated. Multiple anti-reflective coatings on all air-to-glass surfaces increase light transmission. Premium Wide-Field Lens. Exceptional edge-to-edge resolution. Brightness Settings. Choose between 10 levels of brightness in manual mode or switch to auto mode. Parallax Free. All red dot and holographic sights will exhibit some small amount of parallax. Matching current industry practice, this small amount would be considered parallax free and will make a negligible difference in performance. Single-Piece Chassis. Compact and lightweight. Waterproof. O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments. Shockproof. Rugged construction withstands recoil and impact. Hard Anodized Finish. Highly durable low-glare matte finish. ArmorTek. Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt. Unlimited Eye Relief. Non-critical eye relief for rapid target acquisition. Top-load battery for easy replacement without needing to remove the sight. Battery Life. 14-hour auto-shutdown feature maximizes battery life. Up to 150 hours of use at highest setting. Use at the more common lower settings can allow up to 30,000 hours.