1, SONY Super HAD CCD and HQ1 DSP 2, Built in 2.9~10mm/9~22mm Auto IR Cut Varifocal Lens(Japan made F=1.2) 3.Build in 18 pcs infra-Red and the Maz.availble distance is 30 Meters 4, The Focus can be Adjusted Externally 5, Dual Voltage Input (DC12V/AC24V),and with Line-Lock Function 6.Use the Allied Mounting Bracket the wire cannot be cut externally because its put inside the Bracket