![CDATA[ The millimeter-wave radar with a beam angle of up to 40° intelligently detects vehicles approaching within 150m behind in real time, automatically identifies the danger level and transmits it to the display terminal Built-in high-precision sensor, auto highlight when brakes; when vehicle approaches from behind, it provides visual and audible alarms to the rider through the display terminal; and high-frequency flashes to remind vehicles approaching within 220° and 1 mile behind Solid mode, Peloton mode, Pulse mode, Day flash mode, Night flash mode, Single Radar mode; to meet different riding scenarios;