Best 4k spy camera,4k spy camera with audio，Sony 48 megapixel, 3840x2160 resolution, autofocus

Cell phone conversion 4k HD hidden spy camera, Sony 48 megapixels, 3840x2160 resolution, optical autofocus, does not affect the use of cell phones, can make normal phone calls, other functions are normal.
Pre-installed hidden video APP, support black screen photography, support lock screen photography, support background hidden photography.
Movie-grade 4k hidden camera!
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