The BC-337 is an integrated receiver with a built-in patch antenna designed to fit directly into the Compact Flash or PCMCIA slot. The BC-337 was designed with a SiRF Star III chipset. It is an inexpensive, flexible alternative to traditional navigation systems. The BC-337 is truly transportable. Insert it into your PDA and place it in a convenient spot in your car and enjoy the benefits of using your additional mapping software for intelligent route calculation and voice-prompted, turn-by-turn navigation instructions. Learn More