The Off-Camera Shoe Cord OC-E4A is a new shoe cord specifically for use with Multi-function shoe-equipped cameras and is convenient for using your flash apart from the camera. Also allows for Remote Triggering of the flash. You can also use the DM-E1D Digital Stereo Microphone with this cord. Perfect for All studio setups. | Canon | | OC-E4A Off-Camera Multi-Function Shoe Cord (2.6') | Best Buy