note:Choose the size of the radio according to your needs USB Android TPMS Tire Preure Monitoring System Display 4 sensors for Android Car DVD Radio Multimedia Player Type: Intelligent Solar TPMS Car Tire Preure-Solar power charging, don't need to charge by connecting car cigarette lighter-Colorful LCD Digital displaying, clear to show tire information-Rear-time monitoring preure & temperature of 4 tires-Low air preure/high temperature alarm-High Temperature / Leakage / Low Battery Alarm-Intelligent Shock Boot when car moving, don't need to turn on/off-Wirele connect by sensors, easy install-Build-in sensors and external sensors options, meets all your need-Freescale chip sensors and fit on almost 98% cars on market-Two units (PSI / Bar) changeable, you can set the one you like.Build-in Sensor ( Option )- Please install in by Profeional car center-More stable and accurate-Anti High Temperate and Cold-IP67 Protection / Waterproof-Working Temperature: -40-125-Battery Life: 5 Years, irreplaceableExternal Sensor ( Option )- Easy to install, convenient to replace-Dust-Proof / Water-Proof / Anti-theft-Anti High Temperate and Cold-IP67 Protection / Waterproof-Working Temperature: -20-85-Battery Life: 2 Years, replaceableRisk early-warningAccurate early warning, safer driving, more reauring Suitable for many kinds of carsSuitable for Cars, ORV, SUV, MPV, Minibus, Wagon, etc. Connect U-disk to DVD by USB port Intelligent ChipRapid induction abnormality, beep early warning Intelligent On and OffWhen the car is started, the vibration of the machine is automatically opened and the machineis shut down automatically when it is still, without manual operation. The difference between built-in and external