The Canon RC-V100 Remote Control lists a bevvy of controls and two user programmable buttons. This remote is back-illuminated, uses audio cues (easy to enable/disable), and its rotaries have changeable directionality. The remote powers from the host camera so that no separate battery is required, and a 15' connection cable is included. There is a USB port for firmware updates so that new functions and support for new camera models can be added.