1Built-in noise reduction microphone can provides clear sound quality of dialogue effect. 2The chip is integrated, while the sound quality is clear and the dialogue effect is like face-to-face. 3Supports o and picture synchronization, USB camera supports practical adoptability. 4HD camera can be adjusted 180 up and down, and the camera can be rotated 360 degrees. And the angle can be adjusted as needed. 5Imported optical glass lens has high accuracy and the picture is not distorted.Item Type: HD Camera Version: S50 Model 720P HD Version / S60 (Optional) Sensor Type: CMOS Sensor Pixels: 1 MP Interface: USB 2.0 System Support: For win2000 / XP / 7/8/10 / Vista32bt Additional Features: Built-in microphone, individualversion Cable Length: Approx. 1.5m / 4.9ft Maximum Score: 1280 x 720 Photosensitive Type: CMOS Drive: Drive-free Focusing Method: Fixed Conventional Focus Length : Approx. 50 ~ 100cm / 19.69 ~ 39.37in 1 x HD Camera1 x English User Manual