Nicole: 
Baby Monitors
I don't dislike what these do, they let you hear you child cry easily. What I do hate is the technology: they amplify every little sound and add tremble to it which probably adds 50 decibels to the sound. They crackle for no reason too. What someone really needs to do is build these things to transmit when a certain user-definable sound threshold is reached: (e.g. your kid actually crying!)