Features4D precise Joystick+3D knobs+ergonomic zoom button:Camera parameters control such as white balance, exposure, focus and zoom etcSupport buttons lock via one click:Lock buttons via one click to avoid misoperation. Multiple control protocols, apply to abundant venues:Support VISCA、VISCA Over IP、VISCA TCP、PELCO P/D、Onvif and NDI, support automatic protocol recognition. * Additional licenses are required to upgrade the NDI function, please consult the manufacturer for details. Abundant interfaces, multiple connection methods:External RS-232, RS422/485 serial port and RJ45 network interface. The network interface supports POE function, thereby reducing wiring trouble. External tally interface:Support up to 8 tally channels. Support customizable buttons:Support customizable buttons F1, F2, can set the best operation function according to requirement