Dahua 4MP IR Vari-focal Bullet WizSense Network Camera (DH-IPC-HFW3441TP-ZAS-27135) - Max. Resolution: 2688 (H) ×1520 (V), Electronic Shutter Speed: Auto/Manual 1/3 s–1/100000 s, Focal Length: 2.7 mm–13.5 mm, ROM: 128 MB, RAM: 512 MB, Network: RJ-45 (10/100 Base-T), Port: Audio Input: 1-channel (RCA port), Audio Output: 1-channel (RCA port), Alarm Input: 1 channel in: 5mA 3V–5V DC, Alarm Output: 1 channel out: 300mA 12V DC, Pan/Tilt/Rotation Range: Pan: 0°–360°; Tilt: 0°–90°; Rotation: 0°–360°