| Product Description: Conveniently operate several AV functions with just a single key. The RM-AX4000A consolidates multiple remote controls into one, making it the perfect solution for your home AV system. The RM-AX4000A remote control comes with Sony's easy to setup PC software. It's the perfect remote control for today's home AV system, consolidating multiple remote controls into one. The RM-AX4000A also controls up to 16 components, and with the Sync-up Key, synchronizing operational status on remote and alternate components is done with ease. Sync-up Key gives you the ability to re-name LCD keys (up to 8 characters) for components, macros, learned commands, and individual controls for synchronizing operational status. Non-volatile memory functions keep your settings memorized. Using a maximum of 8 timer macros, turn your components on and off automatically. Battery Life - Up to 5 months Compatible Models - DAV-FX500, DAV-FX900W, DAV-HDX265, DAV-HDX500 Operating Systems - Windows XP Media Center Edition 2005, Windows XP Media Center Edition 2004, Windows XP Media Center Edition/Windows XP Professional, Windows XP Home Edition & Windows 2000 Professional System Requirements - IBM PC/AT or compatible, Pentium II 300 Mhz or more, 64 MB or more RAM (128 MB or more for Windows XP), High (16 bits) Color or higher, 1024 x 768 dots or better) Display, 20MB or more Hard Drive Space, CD-ROM Drive, USB Port Dimensions - 4 3/4 x 1 1/4 x 7 inches Weight - 1 pounds 20 ounces (320 grams) |  |