Features: Clear 320x240 resolution. “Gold Standard” BST image quality. Immune to damage from solar radiation. Detects human activity from over 900m with standard lens. Detects human activity up to 1800m with 150mm lens. NTSC/PAL compatible output for video recording. AC/DC battery charger kit (110/220VAC). Rechargeable camcorder battery (NiMH). 2x digital zoom. Specifications: Pixel count: 320 x 240. Overall dimensions: 9.5" x 4" x 4". Spectral response, filter bandwidth: 7-14. Range to detect human activity, 75mm lens: Up to 3000'. Range to detect human activity: Up to 1500'. Minimum focus distance: 1.5'. Power source: NiMH (6VDC). Field of view: 36°H x 37°V. Operating time: 3 hours. Focal length: 25mm.