Very good. The product works well and is consistent with the description and the opinion of other buyers. I recommend for the price and the seriousness of EGK Distribution. The alarm is very sensitive it is triggered at the slightest vibration, I have to put the tarp before otherwise it is not possible the alarm sounds continuously. But after it's good, I lift the bottom of the sheet and hop. To remove the fact of putting the key in it beep. This is an alarm. It is small, light everywhere he goes, that's fine. Important once put it does not ring for nothing, sensitive to the establishment and vice versa but after it's good. Fortunately for the neighbors nights. I really recommend.
