The AG-EC4GPJ Extension Control Unit is designed for use with Panasonic's 300Studio and P2Studio camcorder studio systems. The AG-EC4GPJ offers remote control of each system's base station, up to 50 meters (164 feet) away, or can be attached directly to the camera for control use.
The AG-EC4GPJ is compatible with the AJ-HPX3700, AJ-HPX2700, AJ-HPX3000, AJ-HPX200, AND AG-HPX500 P2 camcorders, as well as the DVCPRO AJ-HDX900. It comes standard with a 10-pin, 10 meter (32 foot) remote control cable.