Radon Opto has an all-black appearance and is fully covered with a rubberized texture for good comfort during long gaming sessions:

The left side of the mouse comes with two extra programmable buttons and a curved area for the thumb finger:

The right side is much more simpler, with no other buttons to press and meant to support the ring and little fingers:

On the back side, if we look closer, we will observe the OZONE company logo:

When looking from the front, we will find the simple scroll wheel, along with some extra buttons:

Those two buttons we were talking about earlier are the profile selector, along with the DPI level switch; when the DPI is modified, the LED indicator on the left side of the mouse will modify accordingly:

When looking on the bottom side of the mouse, we will see 5 small feet and the cable can be routed through the pre-defined channels; here we'll also find the weight storage compartment:

By rotating the cover in the instructed direction (to the left), we will discover the small individual weights:

These are 4.5 grams each, for a total weight of 22.5 grams:

The mouse cable is braided, as we have seen on most high performance products from the same category:

Finally, the USB connector is themed and gold plated for a perfect contact: