Magellan 315x 2-Inch Portable GPS Navigator Powerful 12 parallel-channel receiver and super sensitive quadrifilar antenna for superior tracking in any environment Comes with PC cable, DataSend software, and case High-contrast, high-resolution backlit display with 2 levels of brightness Rugged and weatherproof with a rubber grip Built-in database displays worldwide cities and user-entered landmarks; dataSend CD-ROM enables you to transfer points of interest from your PC, from campgrounds to boat harbors to wineries