1) 1-channel video input and output 2) 2.5" LCD tester box, OSD 3) CE/ FCC ... PTZ control functions in one small and exquisite appearance.2) 2.5" LCD display, and show camera image 1- ... , PAL.6) Support RS232 and RS485, various protocol are compatible, PELCO-P, PELCO-D, KALATEL, SAE etc.7) ... hours after charging.10) DC9V, 2A power supply and 2*1400MAH lithium batteries.11) Auto-reduce power dissipation, ...