Equipped with BDX 2.0 and a Quick Disconnect mount the ECHO CV25 Thermal Clip-On adapts to your situation at any given moment with all the knowledge you need right in the palm of your hand. - The ECHO Clip-On measures only 5 inches in size and features a parallax-free eyepiece intuitively adjusting on the fly for quick detection and engagement. With the ability to easily swap and configure between firearms you can eliminate variables and meticulously dial in your shot without losing time. - Defy the dark with SIG SAUER'S ECHO thermal optics - Compact at only 5 with a QD mount - Eyepiece optimized for parallax-free clip-on application - LWIR 640x512 VGA 12um 50Hz thermal core with 20mK sensitivity - Record still photos and video with audio - Configurable via the BDX App including live video streaming - Rechargeable and removable 18650 lithium-ion battery with 9-hour runtime on a single charge (additional battery included). - IP67 Waterproof rating 25mm Objective 17