A DMB Navigation with T-DMB function added to existing PND (Personal Navigation Device). The slim 17.5 mm width is achieved by using a 15 x 15 mm miniature GPS aerial. It provides improved usability by locating hotkeys such as NAVI, DMB, VOLUME, ZOOM at the front. The cradle, which can be used easily in the vehicle, is included. It is safe to use since it is firmly fixed. It provides greater convenience and safety for drivers with its steering-wheel-like remote control. The overall sound has also been improved by using a 1 W output dual speaker. Walking mode is also provided inside and outside of the vehicle for broader usability. Non-ductile PC material that is used in the product can be heated to a very high temperature. With the Li-Ion type (1700 mA) battery, DMB can be played for up to 3 hours continuously.