The ENF-VQ device provides full-screen, high-resolution images. This imaging capability is achieved without sacrificing the compact and lightweight design, which allows you to use this endoscope in your office environment during your daily activities. Field of view: 90°Depth of field: 5-50 mmDistal end outer diameter: 3.9 mmFlexible tube outer diameter: 3.6 mm Angulation range: Up 130° / Down 130° Working Lenght: 300 mm