Remote Control Unit for the BRC-300 /H700 /Z700 /Z330 /H900. All camera settings including the Pan/Tilt/Zoom function , White balance, Iris, Gain, Shutter color adjustment and preset positions can be easily controlled from the RM-BR300. To connect RM-BR300 to the BRC-H900, serial number's 13000 (for RM-BR300) and under will need to have firmware update installed at a Sony authorized service center. The Firmware update will be available in June 2012 and a nominal fee will applied for this update. More details will be announced at the end of May 2012.