LCD display.
4 Axis optical joystick
Support multiple protocols and baud rate.

It can control all of the function of high speed domes and with Key backlight.

It can control the DVR: image shift, record, stop, play, image size, catch screen, speed, back, menu, alarm, etc.
CD software, make any DVR compatible for the keyboard.

Could control 99 DVR at most.
Matrix switch.
16 user account, 8 digit password.

Module: VVS- KB920
Power Source: DC9V/5W
Communication: RS485
Distance: 1200M
Protocol: PELCO-D, PELCO-P, MOLYNK
Baud Rate: 2400, 4800, 9600, 19200
Most Adds: 255/1024
Display LCD
Dimension: 39*14*16cm
Weight: 2.37kg