Key features:

-WIFI connection,support android phones and Iphone.
-Can take photo and record video.
-HD1080P Resolution.
-4.2MM Ultra small lens , easy access ear canal.
-20X amplifying ear canal & 55° viewing angle.
-6 LED lights.
-Water washable. Adapt to dry ear, oil ear and other complex environment.
-High-end chip video coding technique, hand-eye synchronous exciting picking!
-Smart constant temperature control. Prevent low temperature & ear burning .
-Built-in 230mAh large capacity battery. 45 minute working time.

Specification:

Lens diameter: 4.2MM
Resolution:1920*1080
View angle: 55°
Focal distance: 1.5CM-2CM
Working temperature: 0°-70°C
Power: built-in 230mAh lithium battery
Working time: 45 minutes
Image format: MJPEG
Video format: mp4
Color: BLACK,WHITE

Resolution:

1) The lens does not auto-focus.
2) The best resolution distance is 1.5CM-2CM. The resolution reduces when the distance is farther or closer.