My 1-year-old sleeps best to the Disney "Frozen" soundtrack. The problem is, there's only so much "Let It Go" streaming through a baby monitor that a parent can take. VOX, or voice activation, is a ...

Like a trusty high chair, sturdy car seat, or reliable diapers, the best baby monitors are some of those pieces of parenting hardware that are hard to imagine living without. Sure, people managed to ...