The Bebob Engineering COCO-EX3-V is a V-Mount battery adapter designed specifically for Sony PMW-EX3. This device allows the V-Mount batteries to power the camcorder, wireless receivers and equipment by utilizing Power Tap connectivity.
Power Tap
The twist power tap connection allows many video lights and other equipment to utilize a 14.4VDC output.
Hirose 4-Pin
The Hirose connector is utilized by many wireless mic receivers and other 14.4VDC equipment.