1 Three-dimensional joystick and can adjust zoom rate and speed smoothly.
2 Can be set main control or second control keyboard
3 Can be connect with DVR
4 Buzz indicate the success of the operation
5 Iris, focus, white balance can be adjust by keys
6 OSD function
7 Communication distance: 2km
8 Control load: 256/bus
9 Power supply: DC 9V
10 Communication protocol: Build-in multi-protocol, optional