XKTTSUEERCRR Red/White Car 16-led 18 Flashing Mode Emergency Vehicle Dash Warning Strobe Flash Light Color:White/red On/off button,select pattern button 18 flashing modes,memorizes the last pattern use Dimension:8" ( width ) x 1.6" ( height ) x 5.1" ( depth ) Easy to install,with 3 suction cups for quick screen mount