The bad reviews I can not understand, our baby monitor transmits every sneeze of our daughter and you can hear them at night even rustle when she is looking for her pacifier. However, we have turned off the Sensitivity and the volume at the highest level as well as the ECO mode. The sound transmission I find not relevant for assessment, because I do not care whether the cries of my child is high or low by the parent unit over ... The main thing I hear anything at all. The speakerphone is a nice feature that we do not use however. If my child calls or sitting in bed, singing, instead of sleeping, then I'll go into her room and do not stay sitting on the couch and give instructions via walkie talkie. We also find the sleep light to be very pleasant, although I do not find the pacifier at night anyway, if he is under the bed but still bright, would not be conducive to the baby sleeping and probably only for us parents positively. The only thing that is annoying, are the lieder 1 going far too long, 2. the melodies are really creepy and 3. You can not stop seemingly from the parent unit this endless loop. But for that I give no downside ... the remains of tooting halt and the game clock is wound up. CONCLUSION: PURCHASE rewarding very reliable in function THAT WAY YOU CAN LEAVE SPIELEREIEN.