my friend ,there are four Item ,please choose what you like Features:when radar signal is dectected.Detect any stable or mobile Radar Speed Monitor 200-800m aheadDetect any Traffic Monitor or stable Camera (around traffic lights) in advanceDriving safely and avoiding any Traffic fineAccuracy: more than 90% Monitor or stable CameraODM & OEM Technology Service for different places and customersEnglish /Ruian Voice warning,OEM Language and Voice are availableNo special Installation and Easy ControlFully nine bands receiver.Bands: X-10.525GHZ +/-100MHZ,K-24.150GHZ +/-175MHZ,K-24.125GHZ +/-175MHZ,KU-13.450GHZ +/-125MHZ,Ka-34.700GHZ +/-1300MHZ,Ka-33.400GHZ +/-1300MHZ,Laser Beam-904mn +/-33KMHZ,VG-2-11.150 +/-175MHZ,Wirele Transit: 2.4GHZ +/-410KHZSpecifications:X - band 10.525 GHz 100 MHz 1500-2500MK - band 24.150 GHz 175 MHz 1200-2500Mk - band 24.125 GHz 175MHz 250 - 1200Mku - band 13.450 GHz 125MHz 450 - 1500Mka - band 34.700 GHz 1300MHz 800 1500Mka - band 33.400 GHz 1300MHz 200 - 600MLaser Beam 904mn 33KMHzVG-2 11.150GHz 175MHzWirele duplex transmiion frequency: 2.4GHz 410MHzMaterial: Electronic & ABSPower: DC 12VVoltage: 150/250mAWorking Temperature -10C ~ +40CMaximum Temperature - 40C ~ + 100CColor: Black & RedSize: About 100 x 60 x 35mm(L* W * H)Net weight: 133gPackage Includes:1 x Radar detector unit1 x Car Charger1 x Anti-slip silicone pad