The JVC RM-LP25U is a local remote control panel specifically designed for the GY-HD250/201/200 ProHD HDV camcorders. It is also compatible with the HM700 & HM790 series PROHD series camcorders. The device allows users to control virtually all basic and advanced functions of the camera without having to access the unit directly. This can be very useful in a variety of applications where the camera is not directly next to the DP or cinematographer.