USB Android TPMS Tire Preure Monitoring System Display Alarm System 5V Internal Sensors Android Navigation Car Radio 4 SensorsMust see before buying:For Android DVD RADIOAPP compatible for Android car DVD/multimedia player/GPS navigation. Plug and play, easy and convenient installation.Supports two tire preure unit display switching: bar/psiSupport sensor pairingSupport two sets of tires (summer tire / winter tire), switching is very convenientSupport sensor position exchangeSupport for warning value settingAlarm MonitorTPMS simultaneously show 4 tires' preure or temperature.TPMS automatic update the tire's preure and temperature, keep your driving safe. Tire Preure Monitoring system will be warning when the tire temperature is high, preure is low.