This Radar detector features a laser eye detector for a 360 degree laser detection?? no special installation and easy control.</br>It can detect any mobile radar Speed Monitor 250-2500m ahead.??not including stable radar speed monitor??</br>When you detect a position?? the detector will tell you by make a sound to show you are approaching speed detection device?? so you can confirms your speed on the stretch of road.</br>Extreme Range Super technology?? with super-fast sweep circuitry?? provides extra detection range and the best possible advance warning to even the fastest radar guns. Help you driving safely and avoiding some traffic fines.</br>Relative speed sensing auto shutdown feature will render your detector undetectable by currently available radar detector.</br></br>Product Description</br></br><b>Function Operation</b><br> Two Mode<br> City Mode - to alert the motion signals?? when "n is pressed?? the vocal report will be reported every 10s?? and it will return to default setting when the motion signal disappeared;<br> High way mode - it is the default setting?? it will report each time when receiving signal with high sensitivity.<br> " volume will be increased pressing this button<br> "M": shift between the city mode and high way mode&shift between English reporting and Russian reporting if to press this button for over 3 seconds<br> "-": volume will be reduced pressing this button<br> <br> <b>Specification</b><br> K - band 24.150 GHz + 175 MHz 1200-2500M<br> K - band 24.125 GHz + 175MHz 250 - 1200M<br> Ka - band 34.700 GHz + 1300MHz 800 1500M<br> Ka - band 33.400 GHz + 1300MHz 200 - 600M<br> Power: DC 12V<br> 150 - 300mA current<br> Working Temperature -25 C ~ + 75 degrees C degrees<br> Maximum Temperature - 100 degrees C ~ + 125 degree C<br> <br> <b>Package Contents</b><br> 1 x Excelvan E8 Radar detector Unit<br> 1 x Car Charger<br> 1 x Anti-slip silicone pad<br> 1 x User's Manual<br></br><br/>http://www.amazon.com/gp/product/B01ESWHPUIttended to