1. 4-9mm or 5-16mm Varifocal Lens ( adjustable zoom & focus by OSD menu on the back ); 2. IP66 Weather-proof ( Full-sealed water-proof body Shield used for outdoor supplied ); 3. Double glass frame design reduce the disturbance from infrared lights reflection ; 4. Cable hidden inside the bracket, easy to install; 5. ¢5mm 36 IR Leds ( Effective range: 30m ); 6. Horizontal Resolution : 480TVL 7. OSD menu button ( It can be operated after rotating back cover ).