Boston Acoustics CS 270 2-Way 6.5" In-Ceiling Speaker Multi-Regional - The DN-V310 can display both NTSC (United States, Japan) and PAL (Europe, Australia) standards, making the unit extremely versatile. Wherever you are in the world, the DN-V310 has you covered. (Player is compatible with NTSC/PAL discs encoded as Region 1 or Region ALL. Discs from Regions 2-9 will not play.) HDMI Output - The player can output using HDMI (High Definition Multimedia Interface.) When using the interface, video can be transmitted uncompressed, providing crystal clear images void of any compression or artifacts. In addition to high quality video output, HDMI also transmits all-digital, multi-channel audio. Play Anything - CD-ROMs with MP3s, WMA files, and JPEG pictures can all be played back with the DN-V310. Even the popular DivX movie codec can be viewed! Auto Play - Auto Play functions allows the unit to start automatically when power is turned on. This can be very useful for large venues where turning on each individual player is inefficient or simply not possible. Remote Lock - The remote control can be disabled to avoid any unwanted or accidental tampering.