- Waterproof - checked, specially poured under the tap and connected right there - it works like a clock. Shockproof - checked, beat so that the buttons flew out, after installing them back they continued to work, as if nothing had happened. All keys under one hand, no need to use a second hand. Very heavy - you can't move it by accident. Minimalist design.
- The absence of "0", but you can get around this problem by adjusting the controls in the appropriate games. Creaking and jamming of keys (shift, alt and ctrl). Ignoble pressing sound