In fact, these are two useful products: a bumper cover that protects the phone from damage, and a removable microscope.
A bumper with a solid rear panel, which is very useful for the glass body of the Apple "four".
Matte black plastic with non-slip soft-touch coating and trapezoidal profile fits perfectly in the hand, preventing the phone from slipping out.
Portable microscope with LED illumination. One white LED.
Powered by AG7 disk batteries.
It can be used both as a regular miniature microscope and as a macro lens for the iPhone4, turning a mobile phone into an electron microscope.
The microscope is easily threaded to the bumper holder.
The magnification is adjustable from 60x to 100x. The focal length is also adjusted.
Lightweight plastic body.
Completeness:
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microscope - 1 piece
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holder plate - 1 piece