• 138 Degree wide-angle
• 2.5-inch HD screen
• Infrared control ,unique night vision ,proper lighting and ideal effectiveness
• Thumb wheel button ,free focal adjustment and quick response
• Simple and direct display of the operation menu ,supporting up to 9 languages
• Human oriented design ,special materials with low light prospective adopted for the button makes it possible to operate in dark situations. Simple appearance and easy for operation.