The RM-VPR1 Remote Control with Multi-terminal Cable for Select Sony Cameras and Camcorders from Sony is a wired remote commander that allows various remote control operations to be performed without handling the camera, therefore eliminating camera shake and providing self-portrait and other control applications. When using the RM-VPR1 with most Sony cameras, you are able to control shutter, optical zoom, digital zoom and bulb function. You are also able to control video recording. The remote is also functional with the Alpha a99, a77, a65, a57 and a37 cameras but only for photo (not video) functions. Both a multi-terminal cable and remote terminal cable are included for comprehensive compatibility.