However in terms of operation, we have had problems of responsiveness, which do not come from the egg.
It captures 1m maximum with certain person (eg bad vibes or too thick skin) against 20m in "normal times." The manufacturer has done everything possible and testing the product works perfectly. According to him, so the problem just the person and it can not do anything.
Conclusion: Can not be resumed because the problems do not come from the egg. So be careful before you buy, I recommend an egg with wire or less in case of "malfunction".