Plays up to two hours of videos and hundreds of pics automatically in a loop. You can name the files to play in the order you want. Includes the video player, USB/AC adapter, USB Cable, Volume/On/Off Control and a comprehensive user guide. Supports many video formats but MP4 is recommended to maximize the amount of video that can be stored. Picture format is Jpeg. Plug it into you PC's USB port and it acts as a flash drive. Power it with the USB/AC adapter and it automatically plays. Besides a great User Guide, includes easy instructions and a diagram to add Volume/On/Off control. Soldering is required for the Volume/On/Off control.