Leveraging years of experience creating the industry's most innovative and rugged technologies, SIG SAUER's new ECHO MV35 is a compact thermal monocular packed with industry-leading features and fully backed by SIG SAUER's unrivaled Infinite Guarantee.The ECHO MV35 is powered by an LWIR 640x512 VGA, 12um 50Hz thermal core with Boasting one of the longest runtimes in the industry, the ECHO MV35 is capable of drawing power from an internal reserve cell, in addition to a removable 18500 lithium-ion battery. The device ships with (2) 18500 batteries to ensure that you have all the power you need for long nights afield.Defy The Dark with the ECHO MV35, an unrivaled force in thermal imaging. Features8 Selectable Color PalettesBDX 2.0 Connectivity