... navigator. It has perfect innovation, 5-inch high-definition display, built-in stealth radar, super-frequency radar detection, the national road safety ... MHz -115 ± 2dB, 34.300GHz ± 1300 MHz -115 ± 2dB2.1 Built-in radar detection module, to change the traditional back-mount radar ... installation. It is a full-frequency super-receiver;2.5 Built-in 4G flash memory (optional), support up to 16G extended ...