The collector 640 compact and lightweight design keeps your favorite.223/.556, rimfire, airgun or crossbow nimble and responsive.This unit boasts a fast 60hz frame rate for smooth operation and visual acuity, based on armasights iron wolf thermal technology platform.Fatures includes video and image capture; usb video stream; usb-c interface for viewing your recordings and photos on external devices such as computers or televisions; inclinometer; levelometer; angle cosine indicator; reticle on/off selection; battery status indicator; ultem composite body and ergonomic design; multiple color palettes, intuitive simple three button controls; four hours of video memory;.50 moa boresight; uses 2 x cr123a or a 16650 battery; 8+ reticle types and colors and long battery life.Includes qd mount, usb-c & usb cable, thermal zeroing target, batteries, lens cloth, soft case and product manual.Resolution: 640x480, 60HzMagnification: 1-4xObjective: 25mmField Of View: 18.18 x 13.73 DegreesBattery Size: CR123A/16650Weight: 0.99 lbsFocus Range: 932 MetersDiopter Adjustment: -5/+5Battery Life: 4 hrs