Customizing Software CD for the Uniden Home Patrol HP-1 Radio Scanner! * With this you can add Frequencies, Talkgroups & Trunked Sysytems that are Not in the built-in Database! * Add Nascar, Airband, CB, Marine, Railroad, FRS, GMRS frequencies & more! * Change and/or Add Alpha tags, subtones & Service Types! HP Extreme compatible! * For Windows 8 , 7, XP/2000/Vista, minimum 1024x800 video, 512 RAM. Uniden HP1 is connected to PC using the USB cable that was supplied with the Homepatrol.