Polaroid MGM-2800 5.6" Touch Screen Portable GPS System with DVD Player (Pre-loaded Maps of US and Canada/AV in, Built-in FM wireless transmitter) Large 5.6" TFT LCD with easy touch-screen operation Pre-loaded detailed maps of the Continental US, Hawaii, and Canada Send audio to the car stereo system through the built-in FM wireless transmitter Rotary knob makes navigation of menus and other functions quick and easy WAAS-enabled 12-channel GPS for pinpoint accuracy ,View maps in 2D and 3D perspectives