Please read the User Manual carefully to properly use the scope for best results.
1.The focal length is fixed at 2-3cm (1 Inches), Please adjust the distance between the camera lens and your ear to get focused if you can not see the image clearly.
2.Please adjust the brightness of the LED lights to prevent glare.
3.Please keep the camera clean to avoid blurry image. Blurred images after a period of use are caused by the earwax on the camera lens(Most peoples earwax is oily and can cause glare, unclare image) If the earwax does not carefully wiped out, this will make it stick to the lens more firmly. Please clean the lens before and after use.