... by USB port -CE,FCC,RoHS certificate Details of USB Snake scope Camera*View angle:40-50 degree *Definition:380 TV Lines *Piexl ... to preview images and take pictures, Can also press the camera button to take photos manually; 2. You can adjust LED ... : Check camera lens is dirty or polluted, please wipe clean. Note Do not use a strong solution of caustic cleaning. USB inspection scope camera