Lens level: high-precision endoscope. About this Visual Ear Otoscope Open and Play: Ready to use after powering on, no need to connect to a third-party APP, Type-C port can be expanded to display a third-party screen simultaneously.
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In good working order, good print quality. This is the Healthcare version of the standard grey GK420d. Then press Feed button and keep it pressed until green LED blinks twice and then release it.
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