Features All Band protection Text display Setting saver 3 city modes and a quiet mode 360-degree total perimeter protection VG-2 Cloaking technology Safety warning system Vehicle battery saver Icon display Dimensions: H 1.45 in; W 3.15 in; L 5.35 in Weight: 6.8 oz Laser Wavelength: 905 +/- 10 nanometers Radar Frequencies: 10.500 - 10.550 GHz , 24,050 - 24.250 GHz , 33.400 - 36.000 GHz Operating Temperature Range: -20-degrees C to 80-degrees C Power Requirements: operational 12 to 15 volts DC, 250mA nominal, vehicle battery saver 30mA nominal Power Cord Plug Size: inside diameter is 1.3mm and center tip is positive minimize