Inf I Ray USA Bolt Th50C Thermal Weapon Sight 640x512 50mm Features: - One of a Kind 1.03" 2560x2560 AMOLED Display - Compatible with Optional ILR 1200 Laser Rangefinder Module - Dual Power Supply For 10 + Hour Runtime - Calculate APPRX Target Distance with Built In Stadiametric Rangefinder - 50mm Eye Relief - Stepped Digital Zoom 3.5-14x Specifications: - Digital Zoom: 3.5-14x - Range of Focus: 1750 - Diopter Adjustment: +4/-5 - Operating Temperature: -25/40 - Battery Life (Hours): 11 hrs - Power Supply: Internal 18500 - Resolution IP/mm: 640x512 - Display Size: 1.03" - Display Resolution: 2560x2560 - Display Screen Type: AMOLED