In fact this case is in the garbage, I could not install the circuit inside, keeping legs are too short and steep, covered with molding defects; and my handyman skills, my micro tools, I am a former electronics engineer, have done anything, one of the legs broke, I expected! Hard plastic even at the control locations of micro-switch. Rather than sticking to replace the broken leg, I decided to repair the old case, two thick plastic pellets and a cover by shrink tubing have replaced the original rubber buttons! A tip for the manufacturer: two euros more to achieve a decent quality!